# Presentation: 295206

## RHIC Machine/Detector Planning Meeting  7 Jun 05

_**Agenda**_
_**(if not covered in time meeting)**_
**Report from experiments **
**205x205 GeV run summary**
**100x100 GeV pp status report**
_***What ion beams are presently envisioned for RHIC Rnu-6?***_
**Report for Accelerators (Bai)**
**205x205 GeV pp summary**
**100x100 GeV development (anything left to do?)**** **
**Other business**

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

## 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***
***10 March – Physics begins***
***15 Mar – 8 hours at injection energy 10 March – Physics begins***
***15-22 (1400) Mar - 62.4 GeV/n Cu-Cu Physics***
***22 (1400)-24 (0800) March Cu-Cu Physics at RHIC Injection***
**24 Mar (0800) – End of 10.3**** ****week Cu-Cu run, 8 hr maintenance**
***24-30 Mar – begin 3 week pp setup***
**30 Mar - 1 Apr 05 Cold Snake/Jet Installation/CNI etc**
***1-16 Apr – complete 3 week pp setup ******(7 April, overnight stores for experiments started)***
***17 Apr – Begin 10.0 week pp Physics run***
***31 May – Begin 410 GeV pp setup***
***2-3 June – 2 shifts Physics at 410 GeV***
***3 June – Back to 200 GeV pp***
**25 Jun – end pp run **_**(midnight 24 June), RHIC Run 5 ends**_
**30 Jun – Cryo switch to LN****2**** complete, *****32.0 *****weeks of RHIC cryo operation ends**

## Slide 3

## PhenixGoal (and projections) assume 45 % polarization projected at store

**PhenixGoal (and projections) assume 45 % polarization projected at store**

**PHENIX Goal**

**STAR Goal***

**End of Run**

*** Sum of transverse and longitudal polarization luminosities > 40% p[olarization**

**BRAHMS Goal**

## PHENIX Goal

**PHENIX Goal**

**STAR Goal***

**End of Run**

*** Sum of transverse and longitudal polarization luminosities**

## Slide 6

## as of 31 May

## RHIC Run-5 pp 100x100 GeV

## RHIC Machine/Detector Planning MeetingArchive

## RHIC Machine/Detector Planning Meeting

_***RHIC Run5 As Run/Plan***_
**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***

## 400 GeV pp Run Issue   20 Apr 05

**Summary of discussion to date (Y. Makdisi)**
**Machine issues**
**3 days to setup ramps**
**3+ days to establish adequate polarization**
**Can start mid-May, before PAC meeting (3****rd**** week of May) or after the PAC meeting**
**Prefer 1.5 day PHOBOS physics at end of 200 GeV pp run**** **
**Experiments issues**
**PHOBOS – strong advocate for short physics run, above schedule OK**
**STAR – decide after pp physics is established, priority is to integrate 4-6 pb****-1 ****of delivered luminosity (P>35%) at expense of 400 GeV development run if necessary**
**PHENIX – priority is to integrate 1.5 pb****-1 ****of recorded luminosity (P>45%) before development run and push 1 day PHOBOS physics run to end of 200 GeV pp run**
**BRAHMS – does not plan to run**** **
**Status:**
**Decision will be made at a later date**

## Experiment Goals RHIC Run 5, 100x100 GeV pp

**BRAHMS**
- Began physics 17 April
- Goal  5 pb-1 transverse polarized (>45%) delivered
**PHENIX**
- Began min-bias physics 17 April, main physics 19 April
- Goal 5.5 pb-1recorded Luminosity with 45% polarization, 20 pb-1 delivered
- Translates to: PB2PY2***L*** goal 226 nb-1 recorded
- Translates to: PB2PY2***L*** goal 226 nb-1/(0.45*0.6) = 837 nb-1 delivered
**STAR**
- Began physics 17 April
- Goal ~ 20 Mevts min-bias (~70 hrs)
- Goal ~ 7 pb-1 longitudal polarized (>40%) collisions, 14 pb-1 delivered (useable)
- Goal ~ 4 pb-1 transverse polarized (>40%) collisions,   8 pb-1 delivered (useable)

## Experiment Goals RHIC Run 5, 100x100 GeV/n CuCu, Summary of Results (3/23/05 update)

**BRAHMS**
- Soft physics goal 0.8 nb-1 recorded, achieved 0.8 nb-1 100% of goal
- High-Pt goal 2.4 nb-1 recorded, achieved 1.75 nb-1 73% of goal
**PHENIX**
- Integrated recorded luminosity goal (live BBCLL1) 2.9 nb-1, achieved 3.06 nb-1  105% of goal
**PHOBOS**
- Goal 1000M events to tape, achieved 500M  50% of minimum goal
- Minimum Goal 400M events to tape, achieved 500M  125% of minimum goal
**STAR**
- Min bias, Goal 80M events, recorded 64.5M events  80% of goal
- High Pt Trigger (BEMC HT18), Goal to sample 1-2 nb-1, recorded >1 nb-1  100% of goal

## Experiment Goals RHIC Run 5, 31.2 x31.2 GeV/n and 11.2x11.2 GeV/n CuCu and Final Results (3/30/05)

**BRAHMS**
- 62 GeV, Integrated Recorded Luminosity Goal 90 b-1
-                      Actual recorded luminosity 120 b-1 (133% of goal)
- 22 GeV, Goal 1.5M FFS triggers recorded
-                      Actual recorded 1.9M triggers (126% of goal)
**PHENIX**
- 62 GeV, Integrated Delivered Luminosity Goal = 250 b-1
-                      Integrated Recorded Luminosity Goal 92 b-1
-                                  Actual recorded luminosity 190 b-1 (206% of goal)
- 22 GeV, ~20M recorded events
-                      Actual recorded 23.8M events (119% of goal)
**PHOBOS**
- 62 GeV, Goal 250M events to tape, minimum Goal 100M events
-                        Actual recorded 115M events (115% of minimum goal)
- 22 GeV, Goal 8M events to tape
-                        Actual recorded 20M events (250% of goal)
**STAR**
- 62 GeV, Min bias, Goal >20M events to tape
-                      Actual recorded 27.3M events (136% of goal)
- 22 GeV, Min bias, Goal >1M events to tape
-                      Actual recorded 3.85M events (385% of goal)

## 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

## PHENIX Goal

**PHENIX Goal**

## Total = 205.5 hours

**Total = 205.5 hours**
**0130 10 Mar – 1330 22 Mar = 300 clock hours**
**68.5% or 115 hrs/week average**

## PHENIX Goal

**PHENIX Goal**

## Physics Begins

**Physics Begins**

**PHENIX**

**PHOBOS**

**PHENIX Goal**

**PHOBOS Min Goal**

## RHIC Machine/Detector Planning Meeting

## Slide 21

## as of 6 Jun

_**as of 6 Jun**_

## 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).