# Presentation: 495852

## RHIC Machine/Detector Planning Meeting 23 Feb 05

_**Agenda**_
**Schedule Issues – (Montag)**
**Report from experiments (STAR,PHOBOS,PHENIX,BRAHMS)**
**Progress toward goals **
**Other**
**Report from Accelerators (Bai)**
**Polarized Proton Update (Bai)**
**RCF Issues (Throwe)**
**Other business**

**Planning Meeting Web Site****: http://www.c-ad.bnl.gov/esfd/RMEM/rhic_planning.htm**

## Physics Begins

**Physics Begins**

**PHENIX**

**PHOBOS**

**PHENIX and ****STAR**** **
**2 Mar estimate when goals **
**will be reached**

**PHENIX Goal**

**PHOBOS Min Goal**

**End CuCu**
**200 GeV**

## Slide 3

## RHIC Machine/Detector Planning Meeting

_***RHIC Run5 Plan (estimate based on present understanding of budget)***_
**18 Nov 04 – Cool down begins**
**23 Nov 04 – Blue Ring Cold**
**28 Nov 04 – Yellow Cold**
**29 Nov 04 – Short in D6-D8 dipoles Yellow Ring, schedule delay**
**3 Dec 04 – quad bus-bus short in sector 12, shutdown to repair**
**27 Dec 04 – short problem resolved, rings at 4 degrees again**
**27 Dec 04 - “2 week” RHIC setup with beam began**
**28-29 Dec 04 – found & fixed aperture problem in Yellow Ring (Al foil)**
***  ******5 Jan 05 – “2 week” ramp-up with colliding beams began***
***11 Jan 05 – Physics with Cu-Cu began***
**24 Mar 05 – End of 10.3 week Cu-Cu run**
**24-26 Mar 05 – Jet Installation etc**
***26 Mar 05 – begin 3 week pp setup***
***16 Apr 05 – Begin 10.0 week pp Physics run***
**25 Jun 05 – end pp run, RHIC Run 5 ends**
**30 Jun 05 – Cryo switch to LN****2**** complete, *****32.0****** *****weeks of RHIC cryo operation ends**

**As of 22 Feb 05**

## RHIC Machine/Detector Planning Meeting

**Details – as run/planned **
***11 Jan –****** ******Physics with Cu-Cu began***
***7 Mar (0800) – end 200 GeV/n Cu-Cu***
***7-9 Mar – Setup 62.4 GeV/n Cu-Cu***
***9-15 Mar - 62.4 GeV/n Cu-Cu Physics***
***15 Mar – 8 hours at injection***
***15-23 (0800) Mar - 62.4 GeV/n Cu-Cu Physics***
***23 (0800)-24 (0800) March Cu-Cu Physics at RHIC Injection***
**24 Mar (0800) – End of 10.3**** ****week Cu-Cu run**
**24-26 Mar 05 Jet Installation etc**
***26 Mar – begin 3 week pp setup***
***16 Apr – Begin****** ******10.0****** ******week pp Physics run***
**25 Jun – end pp run, RHIC Run 5 ends**
**30 Jun – Cryo switch to LN****2**** complete, *****32.0 *****weeks of RHIC cryo operation ends**

**As of 22 Feb 05**

**~ finalized**

## as of 22 Feb

_**as of 22 Feb**_

## RHIC Machine/Detector Planning MeetingArchive

## RHIC Machine/Detector Planning Meeting 17 November 2004

_**Purpose of this meeting:**_
- To address issues and priorities relating to the optimization of physics output from RHIC experiments.
- To discuss and promulgate policy (when needed).

## RHIC Machine/Detector Planning Meeting 17 November 2004

_**PAC Recommendations (very short summary):**_
- 8-10 week pp run should have highest priority
- Cu-Cu run should accumulate an integrated delivered luminosity of at least 7 nb-1 at        = 200 GeV
- Cu-Cu at         = 62.4 GeV and 1 day at injection is advisable if above goals are met
- 1-2 day pp (unpolarized) run at        = 400-500 GeV desirable

## as of 22 Feb

_**as of 22 Feb**_

## Experiment Requests(based on 2 Feb input from experiments)

**PHOBOS**
- Goal 10 nb-1 Delivered Luminosity (1B events)
- 0.4B events considered adequate (~ 4 nb-1 Delivered)
- Recorded Luminosity/Delivered  ~ 25%
- Delivered Luminosity offset (Physics start 12 Jan) = 0.2 nb-1
- Prefer uptime to Luminosity development
- Strongly request 2-3 week 62.4 GeV CuCu run
- Strongly request 1 day of CuCu at injection (22.4 GeV)
**PHENIX**
- 7 week (to 2 Mar) CuCu 200 GeV should reach goal
- Recorded Luminosity/Delivered  ~ 24%
- Delivered Luminosity offset (Physics start 18 Jan) = 2 nb-1
- Goal Delivered Luminosity = 12 nb-1
- Prefer Luminosity development continue through ~ 11 Feb
- Request 2 week 62.4 GeV CuCu physics run (_very interested_)

## Experiment Requests

**BRAHMS**
- Soft Physics goal 2 nb-1 Delivered
- Recorded Luminosity/Delivered ~ 0.4
- High-pT goal 4 nb-1 Delivered (runs after completion of soft physics)
- Delivered Luminosity offset (Physics start 16 Jan) = 0.5 nb-1
- Recorded Luminosity/Delivered ~ 0.4 (?)
- Luminosity development and/or * reduction important
- Request minimum 2 week 62.4 GeV CuCu run
**STAR**
- 8 week (to 7 Mar) CuCu 200 GeV assumed
- Recorded Luminosity/Delivered  ***not specified***
- Min-Bias Delivered Luminosity offset (Physics start 14 Jan) = 1 nb-1
- Rare Trigger Delivered Luminosity offset (Physics start 31 Jan) = 5 nb-1
- Goal Delivered Luminosity = ***not specified***
- Prefer uptime to Luminosity development
- Request 10-14 days 62.4 GeV CuCu physics run

## RHIC Machine/Detector Planning Meeting

## RHIC Machine/Detector Planning Meeting

**End of Run?**

**Minimum Goal**

******* = 1 meter**