# Presentation: 187716

## The FNAL “LHC Physics Center”

**The FNAL “LHC Physics Center”**

- Sarah Eno, U. Maryland
- Wine & Cheese
- Feb. 17, 2006, FNAL

- Wine & Cheese, FNAL

- 17 Feb 06

**Notes:**
Walter Giele

## Outline

-  Status of LHC
-  The CMS Experiment
-  Why an “LHC Physics Center” here at FNAL
-  Impact of the LPC
-  Future of LPC

- Wine & Cheese, FNAL

- 17 Feb 06

## It’s been a long time...

- 1983: Tevatron reaches 500 GeV
- 1985: Tevatron reaches 800 GeV
- 1987: First collisions in CDF

**1982**

**1987**

** ****20 years!**

- Installing main ring dipole magnets

- Wine & Cheese, FNAL

- 17 Feb 06

## Now

- Installation of LHC dipole magnets

- Wine & Cheese, FNAL

- 17 Feb 06

## Now

- “data”

- Wine & Cheese, FNAL

- 17 Feb 06

## What is the LHC?

- In the LEP tunnel

-  proposed in 1993
-  **pp  ********s =14 TeV  L=10****34**** cm****-2**** s****-1****=10 mb****-1****MHz**
** ****crossing rate 40 MHz (25 ns)**
** ****circumference of 27 km (16.8 miles)**
**Cost of about $3B? ****(depending on accounting method, conversion rate, etc)**

- Wine & Cheese, FNAL

- 17 Feb 06

## LHC & Tevatron

|  | Tevatron | LHC |
| --- | --- | --- |
| Center-of-mass energy | 1.96 TeV | 14 TeV |
| Crossing time | 396 ns | 25 ns |
| Design luminosity | 3x10e32 cm-2s-1 | 10e34 cm-2s-1 |
| Number of experiments | 2 | 4 |

- Wine & Cheese, FNAL

- 17 Feb 06

## LHC & Tevatron

| Particle | Tevatron (ppbar, 0.2 nb-1s-1=2 fb-1/yr, 1.96 TeV) | LHC (pp, 10 nb-1s-1=100 fb-1/yr, 14 TeV) |
| --- | --- | --- |
| Top quarks | 1x104/year* | 9x108/ year * |
| W’s | 4x107/year | 2x1010/year |
| anything | 1x1014/year | 1x1016/year |

*** 1 “snowmass” year = 10****7**** s**

- Wine & Cheese, FNAL

- 17 Feb 06

## Physics Goals

- If we can start up at 1/10th design luminosity, we’ll discover a Higgs with mass greater than 130 GeV within 1 year.  Will cover entire theoretically allowed range with 1 year of design luminosity.

- M(H)>114.4 GeV direct search

- Wine & Cheese, FNAL

- 17 Feb 06

## If we are lucky...

- The SppS turned on at 1% of final instantaeous luminosity, but in the first run of a few months discovered the W and Z bosons.

- While these experiments did some nice measurements after this, they never again did anything _**anywhere near**_ as exciting as this early discovery.

- Wine & Cheese, FNAL

- 17 Feb 06

## Physics Goals

**Dramatic event signatures (LSP) and large cross section mean we could discover SUSY quickly, if it exists.**

- Wine & Cheese, FNAL

- 17 Feb 06

## Status of the Machine

**Aim to send beam**
** ****Out of SPS TT40 ******
** ****Down TI8** ****
** ****Inject into LHC R8**
** ****Through insertion R8**
** ****Through LHCb**
** ****Through IP8**
** ****Through insertion L8**
** ****Through arc 8-7**
** ****To dump at Q6 R7**

**LHCb**

**TI8**

**Q5**

- 2005
- Jul: Short ciruit tests to Q5
- Oct 13: Q5 to arc. 1/8 of LHC powered for 24 hrs!
- Dec: hardware commissioning: LSS8L

- 2006: 7-8,8-1,8-7, ending with injection test TI8

- Roger Bailey, Sept CMS week

- Wine & Cheese, FNAL

- 17 Feb 06

## LHC Accelerator

**All key objectives have been reached for the end of 2005 (L. Evans).**
** ****End of repair of QRL, reinstallation of sector 7-8 and cold test of sub-sectors A and B.**
** ****Cool-down of full sector 8-1.**
** ****Pressure test of sector 4-5.**
** ****Endurance test of full octant of power converters.**
**Magnet installation rate is now close to 20/week, with more than 200 installed. This, together with interconnect work, will remain the main bottleneck until the end of installation.**

- Wine & Cheese, FNAL

- 17 Feb 06

## Status of the Machine

| Nominal settings |  |
| --- | --- |
| Beam energy (TeV) | 7.0 |
| Number of particles per bunch | 1.15 1011 |
| Number of bunches per beam | 2808 |
| Crossing angle (rad) | 285 |
| Nomalised transverse emittance (m rad) | 3.75 |
| Bunch length (cm) | 7.55 |
| Beta function at IP 1, 2, 5, 8 (m) | 0.55,10,0.55,10 |

| Related parameters |  |
| --- | --- |
| Luminosity in IP 1 & 5 (cm-2 s-1) | 1034  |
| Transverse beam size at IP 1 & 5 (m) | 16.7 |
| Stored energy per beam (MJ) | 362 |

- 1034 cm-2s-1= 10 nb-1s-1= 100 fb-1y-1

- (1y=107s)

- Bailey, Sept CMS week

- Wine & Cheese, FNAL

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## Turn-On

- Wine & Cheese, FNAL

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## Proposal for early proton running

- Phase I collimators and partial beam dump
- Pilot physics run with few bunches
- 43 bunches, unsqueezed, low intensity
- Push performance 156 bunches
- 75ns operation
- 25ns operation with Phase I collimators + partial beam dump
- Phase II collimators and full beam dump
- 	4.	25ns operation
- Push towards nominal performance

- Bailey, Sept CMS week

- Wine & Cheese, FNAL

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## CMS

- Wine & Cheese, FNAL

- 17 Feb 06

## CMS

- It’s real!

**CMS Detector, Sept. 2005**

- Wine & Cheese, FNAL

- 17 Feb 06

## Schedule

- Magnet closed:     		 		: Apr 06
- Magnet test/cosmic challenge: 			: Apr-Jul 06
- EB+ installation					: Jul 06
- USC ready for crates:       				: Feb-Mar 06
- UXC floor shielding & cable chains installed	: April 06-Jun 06
- HF lowering: 					: May 06
- YE+/YB+ cable chains cabled			: June 06
- YE3+ lowering start				: July 06
- UXC  ready for crates				: Jul 06
- First connection to USC				: Jul 06
- EB- installation					: Nov 06
- Tracker installation				: Dec 06
- ECAL/Tracker cabling complete			: Feb 07
- Heavy lowering complete				: Feb 07
- BPix and FPix:                                                              : Nov 07
**CMS ready to close 15 June 07**

- Wine & Cheese, FNAL

- 17 Feb 06

## CMS Collaboration

- Ordered by size:  USA (525 collaborators), Italy (398), Russia (326), CERN (204), France (146), UK (117), Germany (116)

- Wine & Cheese, FNAL

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## USCMS

- By size (physicists)
- FNAL: 58
- Florida: 21
- UCLA: 15
- Davis: 13
- MIT: 13
- Rochester: 13
- Rutgers: 11

- 47 Institutions

- Wine & Cheese, FNAL

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## Tiered System for Data Mgmt

**PIC**
**Barcelona**

**FZK**
**Karlsruhe**

**CNAF**
**Bologna**

**RAL**
**Oxford**

**IN2P3**
**Lyon**

**T1**

**T1**

**T1**

**T1**

**T1**

**T0**

**FNAL**
**Chicago**

**T1**

_**T0 at CERN**_
**Record raw data and DST**
**Distribute raw data and DST to T1’s**

_**T1 centers**_
**Pull data from T0 to T1 and store**
**Make data available to T2**

_**T2 centers**_
**DST analysis....**
**Local data distribution**

- Wine & Cheese, FNAL

- 17 Feb 06

## Computing in the US

**T0 at CERN, T1 at Fermilab as US CMS national center (“super” Tier 1 with twice the resources of other Tier1s), **
**T2 at UCSD, Caltech, UFlorida, Wisconsin, MIT, Nebraska and Purdue as regional US CMS centers. ( + Brazil + China)**

- Wine & Cheese, FNAL

- 17 Feb 06

## Why an LPC?

- A rare picture of the UMD D0 group in Maryland

- Aug. 2004

- Wine & Cheese, FNAL

- 17 Feb 06

## Why an LPC?

- Wine & Cheese, FNAL

- 17 Feb 06

## Why the Trailers?

-  to do shifts
-  to fix hardware

- Wine & Cheese, FNAL

- 17 Feb 06

## Meyrin Site

- Even CERN has realized the clustering doesn’t need to be near the detector

- What is it that we really need?

- ( After thinking about our own ROC effort...  )

- Wine & Cheese, FNAL

- 17 Feb 06

## Why the Trailers?

-  to keep informed about the status of the detector
-  to have ready access to various subsystem experts
-  to have access to software experts
-  to give talks and establish a reputation that could lead to the next job

- Wine & Cheese, FNAL

- 17 Feb 06

## LPC

-   a critical mass (clustering) of young people who are actively working on software (reconstruction, particle identification, physics analysis) in a single location (11th floor of the high rise),
-  a resource for University-based US CMS collaborators; a place to find expertise in their time zone, a place to visit with their software and analysis questions,
-  a brick-and-mortar location for US-based physics analysis, with such physical infrastructure as large meeting rooms, video conferencing, large scale computing,  and a  “water cooler” for informal discussions of physics.

**Located on the 11****th**** floor of the FNAL high rise, the purpose of the LPC is to ensure the US gives the strongest possible assistance to international CMS in software preparations for Day 1 and to enable physics analysis from within the U.S.**

- Founded Feb 2004

- Wine & Cheese, FNAL

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## LPC

-  physical facilities
-  people and organization
-  impact
-  future plans

- Wine & Cheese, FNAL

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## Resources: 11th Floor

-  **Meeting Rooms/Video Conferencing/Internet**
** ****terminals/printers/office supplies **
** ****secretarial and computer support**
** ****Coffee machines/Water cooler**
** ****Lockers for transient use**

- Of the 60 permanent slots, 25% are University physicists.

- Wine & Cheese, FNAL

- 17 Feb 06

## ROC

**15****th**** Sept. ‘05.**

-  Will be used for cosmic slice test and 2006 test beams

- Contributors: FNAL (esp Kaori Maeshima, Alan Stone, Patrick Gartung), MD, Kansas State

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## We’ve got data!

- (working in conjunction with the FNAL CMS Tier1 team)

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## Web Information

- http://www.uscms.org/LPC/LPC.htm

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## Web

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## More than just furniture...

- Run by Avi Yagil, Sarah Eno
**offline/edm:** Liz Sexton-Kennedy (FNAL), Hans Wenzel (FNAL)
-  **tracking:** Kevin Burkett (FNAL), Steve Wagner (CO)
-  **e/gamma:** Yuri Gershtein (FSU),  Colin Jessup (Notre Dame)
-  **muon:** Eric James (FNAL) , Michael Schmitt (Northwestern)
-  **jet/met:** Rob Harris (FNAL), Marek Zielinski (Roch)
-  **simulation:** Daniel Elvira (FNAL), Harry Cheung (FNAL)
-  **trigger:** Greg Landsberg (Brown) , Kaori Maeshima (FNAL)
-  **Physics:** Boaz Klima (FNAL)

- Heidi

- Hans

- Daniel

- Yuri

- Rob

- Eric

**Marek**

- Liz

**Boaz**

- Kevin

- Kaori

- Avi

- Sarah

- Steve

- Michiel

**Greg**

- Harry

- Colin

- Wine & Cheese, FNAL

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## Inform/Educate

- weekly All USCMS meeting Fridays
-  5 well-attended sessions of CMS 101, 4 successful Tevatron/LHC workshops, 4 well-attended sessions of “software tutorials”, tutorials on software tools
-  a mini-workshop on LHC turn-on physics, a workshop to initiate LPC cosmic slice effort, hosted the international CMS “physics” week, a US CMS Meeting, a 2-week mini summer school , a “January Term” that gives 1st and 2nd year graduate students an in-depth introduction to the detector, many detector sub-system workshops, a workshop to initiate the “physics” working group

- Wine & Cheese, FNAL

- 17 Feb 06

**Notes:**
These are the real heart of what we’ve built and provide here

We have had very nice things said about us at a number of reviews

## Summer ‘05

- Over 50 University-based physicists visited the LPC for at least 2 weeks this summer.

- Summer school
- CMS 101
- tutorials

- Wine & Cheese, FNAL

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## J-Term Intro to CMS at LPC

**Attended by over 70 1st and 2nd year grad students!**

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## All US CMS Meeting

-  (almost) every Friday 2:30 PM FNAL time
-  well-attended both in person and via vrvs

- Typical Agenda
- News from Dan
-  News from Ian/Jon
- one topical talk

- May   13 EDM report - Liz Sexton-Kennedy
- May 20  sLHC - Wesley Smith
- May   27 e/gamma - Yuri Gerstein
- Jun 3 trigger - Sridhara
- Jun   10  jet/met - Rob Harris
- Jun 17 (cancel due to cms week?
- Jun 24  (cancel due to cms annual review?)
- Jul 1 The CMS Forward Pixel Project  - John Conway
- Jul 8 Making contact with theorist - Steve Mrenna
- Jul 15 muon alignment - Marcus Hohlmann
- Jul 22 LPC muon group - Eric James
- Jul 27 due to Dan's lecture series
- Aug 5  Authorship list requirements - Dan Green
- Aug 12 Magnet studies - Rich Smith
- Aug 19 Data bases for Cosmic Ray test - Lee Lueking
- Aug 26 luminosity preparation - Dan Marlow
- Sep 2 cosmic analysis in the U.S. - Yurii Maravin
- Sep 9 cosmic workshop
- Sep 16 ROC - Kaori
- Sep 23 CMS week
- Sep 30 Simulation Certification Project - Daniel Elvira
- Oct 7   physics workshop
- Oct 14  (HCAL meeting at FNAL)  MET - Richard Cavanough
- Oct 21 Calorimetry Task Force - Jeremy Mans
- Oct 28 HCAL calibration - Shuichi Kunori
- Nov 4 P420 Proposal - Mike Albrow
- Nov 11
- Nov 18 Tier 2's for me and you - Ken Bloom

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## Impact

- Very PRETTY, but what have you DONE?

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## Event Data Model

- FNAL, Cornell

- Ease of accessing data / changing calibrations / updating geometry / using computing → speed for results on Day 1
- Tevatron experts on Event Data Model (EDM) available to bring their experience with a working system to the CMS effort and to review  and provide scientific leadership in the redesign of CMS EDM, working closely with others in CERN/Italy/France

- Example

- Wine & Cheese, FNAL

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## Event Data Model

-  working with CMS EDM primary author, began review in early November, 2005

- presented to the collaboration in Jan 11, 2005
-  approved in Feb 9, 2005
-  early prototype work demonstrated during March 2005 CMS week
-  first implementation delivered June 2005
-  beginning 2006:  all major components of redesign are in place; now in incremental improvements/maintenance phase

- Wine & Cheese, FNAL

- 17 Feb 06

## Bus Architecture

- Start from the raw-raw data
- ● Producers are scheduled to operate on the event data and produce their output which is written into the event
- ● At any point in the processing chain, the execution can be halted and the contents of the event can be examined outside of the context of the process that made it
- ● The schedule can be checked for correctness since the modules can declare their inputs (and outputs if they are EDProducers)

- Wine & Cheese, FNAL

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## Algorithms

-  wrote the jet code for the new framework
-  visitor wrote MET code in coordination with the jet code authors
-  wrote one of the two main tracking algorithms in CMS
-  working on muon and electron code

- Wine & Cheese, FNAL

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## Event Data Model

- Ready for the magnet test/ cosmic challenge

- Wine & Cheese, FNAL

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## Other LPC “Firsts”

-  Trigger group (Dasu)
-  Simulation Group (Elvira & Klima)
-  ROC (Maeshima)

- Wine & Cheese, FNAL

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## Integration with CMS “CPT Project” for Computing, Software, Physics Reconstruction and Selection

- Frequently on 11th floor or on LPC advisory council

**EvF/DQM**
**E. Meschi**

**Reconstruction**
**T. Boccali**

**Analysis Tools**
**L. Lista**

**Simulation**
**M. Stavrianakou**
**Daniel Elvira**

**Calibr/alignment**
**O. Buchmuller**
**L. Lueking**

**Framework**
**L. Sexton**

**Software**
**L.Silvestris**
**A.Yagil**

**Integration Program**
**S. Belforte/****I.**** ****Fisk**

**Facilities and Infrastructure**
**N. Sinanis**

**Operations Program**
**L. Barone**

**Technical Program**
**P.Elmer****/S.Lacaprara**

**Computing**
**L. Bauerdick **

**Project Manager**
**P.Sphicas**

**Project Office**
**V.Innocente**
**L.Taylor**

**Fast Simulation**
**P. Janot**

**ORCA for PTDR**
**S. Wynhoff**

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## PTDR

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## Jet/MET

- Example

- Jet Reconstruction/Calibration

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## Jet/Met & PTDR

| 
Path | L1 |  |  | HLT |  |
| --- | --- | --- | --- | --- | --- |
|  | ET
(GeV) | Pre-
scale | Rate
(KHz) | ET
(GeV) | Rate
(Hz) |
| Low | 25 | 2000 | 0.020 | 60 | 2.8 |
| Med | 60 | 40 | 0.023 | 120 | 2.4 |
| High | 140 | 1 | 0.034 | 250 | 2.8 |

- _Triggers for PTDR Vol.1_
- Reasonable single jet trigger tables.
- The ET thresholds, prescales, and rate estimates at L1 and HLT.
- Four running periods: Lum. = 1032, 1033, 2 x 1033 and 1034 cm-2 s-1.

**Single Jet Trigger Table for L = 10****32**

- Wine & Cheese, FNAL

- 17 Feb 06

## Examples: Current Projects

- _Physics for PTDR Vol. 2_
- Dijet Resonances
- Z’, q*, T8, etc.
- K. Gumus Thesis
- Contact Interactions
- Compositeness, etc.
- S. Esen Thesis

**Contact Interactions**

**Dijet Resonances**

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## Examples: Current Projects

- Example

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## Examples: Current Projects

- Example

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## Examples: Current Projects

- Example

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## Examples

-  HCAL calibration
-  energy-flow jet algorithms
-  muon identification algorithms

- Example

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## Impact of LPC

- Although not formally commissioned until early 2005, LPC scientists have already had a big impact on CMS.  Tevatron experience is a key!
- Review of software framework led to overhaul, and increased placement of U.S. scientists in management positions.
- Location at Tier 1 means the LPC is a place where interfaces between M&O and S&C can be worked out, with many meetings to make coherent the efforts of both.
- 2005: concentration on the physics-enabling environment and reconstruction  tools.  Aspects ranging from muon identification to trigger tables to jet calibration.
- 2006: moving closer to physics analyses, via the path of  understanding the detectors during the cosmic challenge and test beam.

- Wine & Cheese, FNAL

- 17 Feb 06

## The LPC & Universities

-  a postdoc who is stationed at FNAL working on both CMS and a Tevatron experiment can have a desk on the 11th floor and be near people from both experiments.
-  a CMS postdoc can be stationed at FNAL and benefit from having many people close by to interact with
-  a postdoc stationed at your university can come for a month, to get up to speed on analysis basics and to form personal connections that will help his/her later work
-  students can come for the summer to interact with a wide variety of experts and learn the basics on the CMS environment
-  Faculty can come every other week to keep their connections with the experimental community .
-  Faculty can come for a day for help with a particularly knotty software or analysis problem

- Participation in the groups will both help them do physics and allow them to serve the US and International CMS

- Wine & Cheese, FNAL

- 17 Feb 06

## US University Involvement

**Simulation:** FNAL, FSU, Kansas State, Kansas, Louisiana Tech/Calumet, Maryland, Northwestern, Notre Dame, Rutgers, UIC, SUNY Buffalo, Nanjin, Ciemat, Tata, Puerto Rico
**Jet/Met:** FNAL, Rochester, MD, Rutgers, Boston, Cal Tech, Florida, Rockefeller, Princeton, Texas Tech, Iowa, Mississippi, Minnesota, Santa Barbara, Northwestern
**Muon:** FNAL, Carnegie Mellon, Florida, Florida Tech, Purdue, Nebraska, Northwestern
**e/gamma:** FNAL, Northwestern, FSU, Minnesota,  MD, Brown, Notre Dame, San Diego, Cal Tech
**Tracking:** FNAL, Colorado, Cornell, Nebraska, UC Davis, UCSB,  UC Riverside, Wisconsin, Kansas State, Calumet
**Trigger:** Wisconsin, Florida, Northwestern, FNAL, Vanderbilt, Texas A&M, Brown, Maryland
**Offline/edm:** FNAL, Cornell
**Physics:** all

- About 1/4 of the non-transient physicists on the  11th floor are University employees.  All the (many) transients from Universities.

- Wine & Cheese, FNAL

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**Notes:**
I don’t want you to think these groups are an FNAL effort.

## Plans for Coming Year

- Commissioning of ROC / Cosmic slice test
- Strengthening of working groups, especially the brand-new physics group
- Development of realistic “run plan” for early data taking
-  working with detector groups
- Full summer school

- Wine & Cheese, FNAL

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## “Physics” Group

- International CMS meetings have very crowded agendas, very large audience.  More like a conference than a working group.
- Main goal: to provide to US people doing “physics analysis” an informal atmosphere conducive to mentoring.

**Kick-off Workshop was**
**October, 2005.**

- Wine & Cheese, FNAL

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## CMS is Already Doing a Lot

-  **USCMS has made tremendous contributions to the hardware of the CMS**** **
** ****Many of our USCMS colleagues are extremely busy these days and have little (or no) time to think about Physics analysis**
** ****It’s our job at the LPC to create an environment in which everyone can get help and support whenever (s)he is ready for Physics**
** ****The LPC is already playing a key role in quite a few areas; will do even more in the future**
** ****We recently started a new group/effort, Physics**
**Leader – Boaz Klima (ex ****DØ**** Physics Coordinator)**

- (slides from Klima)

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## Inauguration of LPC Physics Effort -Workshop @FNAL on Oct. 7, 2005

- Goals

-  Get to know (communications is the name of the game!)
-  each other
-  who is doing what wrt Physics analysis
-  what level of support already exists at the LPC (computing,
-    software, algorithms, environment,...)
-  Find out where one can fit in
-  Join one (or more) of the working groups
-  Allow newcomers to learn from the experience of those
-    already active in CMS analysis
-  Help in shaping up our future – feedback, input
-  Begin to enjoy the road to the “promised land”...

- Great Success - ~60 Participants at WH1W + ~20 VC Connections

- Wine & Cheese, FNAL

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## Observations & Initial Ideas

- Continuously seeking feedback – it is essential!

-  We have to be inclusive
-  Provide forum for informal discussion to ongoing analyses
- Senior/experienced people will help here
-  Create a new analysis effort to do a full blown (generic) analysis (with whatever exists) – start looking at events with complex signature (a few physics objects)
- We’ll learn together about holes, problems, difficulties -
- we’ll help in solving them for CMS
-  We all have to help in strengthening the foundation of our analysis effort – the LPC working groups
-  In conjunction with the ID groups, will work on object-related studies, e.g. efficiency, fake rate, resolution, trigger eff etc

- Wine & Cheese, FNAL

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## Topics Discussed in our Meetings

-  Theory (strong local group!)
-  QCD Processes @LHC (W. Giele)
-  Getting Ready for SUSY @LHC ( J. Lykken)
-  ID/Trigger/Simulation (cross pollination with LPC groups)
-  Jet Trigger Studies
-  Muon ID Performance
-  EM ID studies
-  Physics Validation of CMS’ Detector Simulation
-  Tev4LHC (learning the lessons; fundamentals)
-  Min-Bias & Underlying Event in CMS
-  Fake Rate Physics

- Wine & Cheese, FNAL

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## Topics Discussed in our Meetings

-  The Early Days (or “CMS Run Plan”)
-  Really low Luminosity (<1027)
-  Low Luminosity (<1027)
-  Generic Analysis (do it here!)
-  Repeat Current CMS analysis at LPC
-  Identify Problems, solve or forward
-  Move to new software – 1st in CMS (?)
-  Physics for TDR (speak physics...)
-  Jet-jet Resonances
-  qqH Analysis
-  Higgs      
-  ...

- Wine & Cheese, FNAL

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## Long-Term Plans

-  Do most (all?) USCMS physics analysis at the LPC?
-  Not necessarily physically @FNAL
-  Create physics groups (&subgroups) as needed
-  Provide forum for informal (and formal) discussions
-  Bring analyses to completion
-  Work closely with International CMS – be transparent!

- Modeled after CDF, DØ, ...

- The Vision - CMS/LPC’s analysis effort will be equivalent to the effort at CERN

- Wine & Cheese, FNAL

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## Magnet/Cosmic Slice Test

***ambitious***** integration test:**
- issues:
- -compatibility with basic
-        programme of tests
- -special installations
- -muon, rpc, hcal, ecal, trk detectors
- -cabling & services (esp LV)
- -controls and safety
- -trigger
- -off-det electronics
- -DAQ & Run Control
- -DAQ integration requires:
- -local DAQ  (over VME)
- -FED Slink
- Common trigger (ad-hoc with LTC? )
- -databases
- -data-structure/storage
- -analysis software     etc etc etc

**April ’06  (then, heavy lowering!)**

- Wine & Cheese, FNAL

- 17 Feb 06

## ROC and Cosmic Test

- Data access
- Being able to analyze the data efficiently
- 	is of a paramount importance: bring the
- 	data to LPC!
- Remote Operation Center: infra-
- 	structure for
- Data taking monitoring (feedback to CERN)
- Data transfer monitoring
- Data analysis
- Setup the infrastructure for the data
- 	analysis at LPC
- Reconstruction software, development
- 	and optimization of algorithms, calibration etc

- Cosmic Muon Challenge

- Extremely Important for CMS and LPC

- Wine & Cheese, FNAL

- 17 Feb 06

## Summer Test Beams

- The CMS HCAL and ECAL groups will perform a Combined Test starting in
- mid-July and run for 9 weeks according to the following plan:
-  1 week: Set-up time
-  3 weeks: High-energy beam (10-300 GeV pions/electrons/muons; negative beam if possible).
-  1 week: Switchover from High Energy to Very Low Energy beam
-  4 weeks: Very Low Energy beam (2-9 GeV pions/electrons)
- Typical intensities of 10 kparticles/spill.
- The programme will be dedicated to measuring the response of the combined ECAL +HCAL to pions in the momentum range 2 - 300 GeV. The groups will also use
- electron (muon) beams to establish the calibration of ECAL (HCAL). Preferred time is
- July 19th (week 29th) to September 20th in week 38th , i.e. just before structured beam period.

- Wine & Cheese, FNAL

- 17 Feb 06

## Step-by-step use of luminosity

- hep-ph/0601038** **

- Before beam:
- Set timing to 1 nsec using lasers, pulsers
- Set ADC counts to Et conversion to 5% using sources, muons, and test beam transfer of calib – ECAL and HCAL.
- Set alignment of muon chambers using cosmics  and optical alignment, MB and ME. Track motion with field on (first test in SX5 in cosmic challenge).
- Set alignment of tracker (pixels + strips) using muons, optical alignment and survey.

**Then...**

- Wine & Cheese, FNAL

- 17 Feb 06

## From 1023 to 1027 /(cm2sec)

| L for 1 month run (106 sec) | Integrated L | Trigger | Process | Comments |
| --- | --- | --- | --- | --- |
| 1023 | 100 mb-1 | None
I~ 50 mb | Inelastic
non-diff | Input to tweak Pythia |
| 1024 | 1 b-1 | Setup Jet | Inelastic
non-diff | Calib in azimuth |
| 1025 | 10 b-1 | Jet
(gg) ~ 90 b
(ggg) ~ 6 b | g+g -> g+g
g+g -> g+g+g | Establish JJ cross section |
| 1026 | 100 b-1 | Jet | g+g -> g+g
g+g -> g+g+g | Dijet balance for polar angle – Establish MET |
| 1027 | 1nb-1 | Jet
Setup Photon
(q) ~ 20 nb | g+g -> g+g
g+g -> g+g+g
q+g -> q+  | Dijet masses > 2 TeV, start discovery search.
J+ calib |

- Wine & Cheese, FNAL

- 17 Feb 06

## From 1028 to 1033 /(cm2sec)

- Wine & Cheese, FNAL

- 17 Feb 06

## Run Planning Summary

- Understanding detector response, trigger, reconstruction, and backgrounds.
- Pre-operations will prepare CMS for first beam.
- The first 5 orders of magnitude in luminosity, up to 1027, will allow calibration checks, jet and MET establishment, and dijet mass search.
- The next 6 orders of magnitude, to 1033, allow the setting up of lepton triggers, standard candles for cross sections (W and Z), jet mass scale (W from top) and dilepton and diphoton mass searches.
- Look in tails of l + , l + l and  +  masses.
- Look at Jets + MET. Estimate Z backgrounds using dilepton Z events.

- Wine & Cheese, FNAL

- 17 Feb 06

## Summer School

- August 9-19, 2006

- http://hcpss.fnal.gov/.

- Wine & Cheese, FNAL

- 17 Feb 06

## Countdown Clock

- T-521 days and constructing, building!!

- March, 2005

**LHC Dipole**
**March, 2005**

**CMS Detector, Sept. 2005**

**CMS Detector, Sept. 2005**

- Wine & Cheese, FNAL

- 17 Feb 06

## Conclusions

- Hope to see you on the 11th floor!

- Wine & Cheese, FNAL

- 17 Feb 06

## Stage 1 – pilot run luminosities

- No squeeze to start
- 43 bunches per beam (some displaced in one beam for LHCb)
- Around 1010 per bunch
- Push one or all of
- Partial optics squeeze in 1 and 5 (2m ???)
- Increase bunch intensity
- 156 bunches per beam (some displaced in one beam for LHCb)

| Beam energy (TeV) | 6.0, 6.5 or 7.0 | 6.0, 6.5 or 7.0 | 6.0, 6.5 or 7.0  |
| --- | --- | --- | --- |
| Number of bunches per beam | 43 | 43 | 156 |
| * in IP 1, 2, 5, 8 (m) | 18,10,18,10 | 2,10,2,10 | 2,10,2,10 |
| Crossing Angle (rad) | 0  | 0  | 0  |
| Transverse emittance (m rad) | 3.75  | 3.75 | 3.75 |
| Bunch spacing (s) | 2.025  | 2.025 | 0.525 |
| Bunch Intensity | 1 1010  | 4 1010  | 9 1010  |
| Luminosity IP 1 & 5 (cm-2 s-1) | ~ 3 1028 | ~ 5 1030 | ~ 1 1032 |
| Event rate / crossing IP 1 & 5 | low | 0.76 | 3.9 |

- Bailey, Sept CMS week

- Wine & Cheese, FNAL

- 17 Feb 06

## Stage 2 – 75ns luminosities

- Partial squeeze and smaller crossing angle to start
- Luminosity tuning with many bunches
- Establish routine operation
- Push squeeze (1m ???) and crossing angle
- Increase bunch intensity if the experiments can stand it ?
- Tune IP2 and IP8 to meet experimental needs
- Down in IP8 (1m ???)
- Up in IP2 (50m ??? Then transverse beam displacement probably needed)

| Beam energy (TeV) | 6.0, 6.5 or 7.0 | 6.0, 6.5 or 7.0 | 6.0, 6.5 or 7.0  |
| --- | --- | --- | --- |
| Number of bunches per beam | 936 | 936 | 936 |
| * in IP 1, 2, 5, 8 (m) | 2,10,2,10 | 1,10,1,10 | 1,10,1,10 |
| Crossing Angle (rad) | 250  | 285  | 285  |
| Transverse emittance (m rad) | 3.75  | 3.75 | 3.75 |
| Bunch Intensity | 4 1010  | 4 1010  | 9 1010  |
| Luminosity IP 1 & 5 (cm-2 s-1) | ~ 1 1032 | ~ 2 1032 | ~ 1 1033 |
| Event rate / crossing IP 1 & 5 | 0.73 | 1.37 | 6.9 |

- Bailey, Sept CMS week

- Wine & Cheese, FNAL

- 17 Feb 06

## Production physics running
Below e cloud threshold

Scrubbing run (1-2 weeks)
Increase bunch intensities to dump limit
Install beam dump kickers 
Install phase II collimators
Increase bunch intensities towards nominal
Tune IP2 and IP8 to meet experimental needs
Transverse beam displacement certainly needed in IP2

- Below e cloud threshold
- Scrubbing run (1-2 weeks)
- Increase bunch intensities to dump limit
- Install beam dump kickers
- Install phase II collimators
- Increase bunch intensities towards nominal
- Tune IP2 and IP8 to meet experimental needs
- Transverse beam displacement certainly needed in IP2

- Stage 3 & 4 – 25ns luminosities

| Beam energy (TeV) | 6.0, 6.5 or 7.0 | 6.0, 6.5 or 7.0 | 7.0  |
| --- | --- | --- | --- |
| Number of bunches per beam | 2808 | 2808 | 2808 |
| * in IP 1, 2, 5, 8 (m) | 1,10,1,10 | 1,10,1,10 | 0.55,10,0.55,10 |
| Crossing Angle (rad) | 285  | 285  | 285  |
| Transverse emittance (m rad) | 3.75  | 3.75 | 3.75 |
| Bunch Intensity | 3 1010  | 5 1010  | 1.15 1011  |
| Luminosity IP 1 & 5 (cm-2 s-1) | ~ 4 1032 | ~ 1 1033 | 1034 |
| Event rate / crossing IP 1 & 5 | 0.77 | 2.1 | 19.2 |

**Long shutdown (6months)**

- Bailey, Sept CMS week

- Wine & Cheese, FNAL

- 17 Feb 06