rhic machine/detector planning meeting · ¾phobos proposal for ~ 4 hours 100x100 pp ... can start...

RHIC Machine/Detector Planning Meeting2 Jun 05

Agenda

205x205 GeV pp setup – status report, outlook (Bai)

Experiments Plans/Comments/Discussion/Decide on Physics Run (All)

PHOBOS Proposal for ~ 4 hours 100x100 ppThe proposal (Steinberg)How we might accommodate the request (Bai)

Other business

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

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RHIC Machine/Detector Planning Meeting• Details – as run/planned

11 Jan – Physics with Cu-Cu began7 Mar (0800) – end 200 GeV/n Cu-Cu7-9 Mar – Setup 62.4 GeV/n Cu-Cu9-15 Mar - 62.4 GeV/n Cu-Cu Physics10 March – Physics begins15 Mar – 8 hours at injection energy 10 March – Physics begins15-22 (1400) Mar - 62.4 GeV/n Cu-Cu Physics22 (1400)-24 (0800) March Cu-Cu Physics at RHIC Injection24 Mar (0800) – End of 10.3 week Cu-Cu run, 8 hr maintenance24-30 Mar – begin 3 week pp setup30 Mar - 1 Apr 05 Cold Snake/Jet Installation/CNI etc1-16 Apr – complete 3 week pp setup (7 April, overnight stores for experiments started)17 Apr – Begin 10.0 week pp Physics run31 May – Begin 410 GeV pp setup2-3 June – 2 shifts Physics at 410 GeV (?)3 June – Back to 200 GeV pp25 Jun – end pp run, RHIC Run 5 ends30 Jun – Cryo switch to LN2 complete, 32.0 weeks of RHIC cryo operation ends

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Run5 RHIC pp Delivered (Physics) Integrated Luminosity

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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

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Run5 RHIC pp Delivered (Physics) Integrated Luminosity x PB2xPY

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STAR Goal*

End of Run* Sum of transverse and longitudal polarization luminosities

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Run5 RHIC pp Delivered (Physics) Integrated Luminosity x PB2xPY

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BNL Energy Use FY 2004-5(C-AD Bldg power is in site base)

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as of 31 May

RHIC Machine/Detector Planning Meeting

Archive

8


• RHIC Run5 As Run/Plan

18 Nov 04 – Cool down begins23 Nov 04 – Blue Ring Cold28 Nov 04 – Yellow Cold29 Nov 04 – Short in D6-D8 dipoles Yellow Ring, schedule delay3 Dec 04 – quad bus-bus short in sector 12, shutdown to repair27 Dec 04 – short problem resolved, rings at 4 degrees again27 Dec 04 - “2 week” RHIC setup with beam began28-29 Dec 04 – found & fixed aperture problem in Yellow Ring (Al foil)5 Jan 05 – “2 week” ramp-up with colliding beams began

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400 GeV pp Run Issue 20 Apr 05

Summary of discussion to date (Y. Makdisi)

Machine issues3 days to setup ramps3+ days to establish adequate polarizationCan start mid-May, before PAC meeting (3rd week of May) or after the PAC meetingPrefer 1.5 day PHOBOS physics at end of 200 GeV pp run

Experiments issuesPHOBOS – strong advocate for short physics run, above schedule OKSTAR – 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 necessaryPHENIX – 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 runBRAHMS – does not plan to run

Status:Decision will be made at a later date

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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: PB

2PY2L goal 226 nb-1 recorded

– Translates to: PB2PY

2L 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)

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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

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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 µb-1

Actual recorded luminosity 120 µb-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 µb-1

Integrated Recorded Luminosity Goal 92 µb-1

Actual recorded luminosity 190 µb-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)

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RHIC Machine/Detector Planning Meeting17 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

s

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PHENIX Goal

RHIC Run 5 (22 GeV) Final Delivered Cu-Cu Luminosity

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RHIC Run 5 (62GeV) Hours per Day at Store

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Total = 205.5 hours0130 10 Mar – 1330 22 Mar = 300 clock hours68.5% or 115 hrs/week average 16

RHIC Run 5 (62 GeV) Final Delivered Cu-Cu Luminosity

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RHIC Run 5 Final Delivered 100x100 GeV/n Cu-Cu Luminosity

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PHYSICSBEGINS

END OF RUN

Physics Begins

PHENIXPHOBOS

PHENIX Goal

PHOBOS Min Goal


Run5 -- FINAL DELIVERED Integrated Luminosity by week

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hours at store Phenix STAR

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http://www.c-ad.bnl.gov/esfd

AGS-Booster-Tandem/Linac Startup

RHIC Cryo Cooldow/switch to LN 2

RHIC Cryo Operation

RHIC Cryo off

RHIC Systems Test (no colliding beams)

RHIC with colliding beams

RHIC Research with Cu-Cu (100x100 GeV/n)



RHIC Research with p-p (100x100 GeV)

NSRL (NASA Radiobiology)

AGS (NASA)

Shutdown (RHIC)

C-A Operations-FY05

Program Element Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

FY 2005

22 Feb 05

setup/ramp up luminositySchedule - subject to change

32 weeks

p,O(2),Si,Fe(2),Ti

Sep

schedule to be determinedpending approval/funding

p,C,O,Si,Fe(2)

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BNL Energy Use FY 2005(C-AD Bldg power is in site base)

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Date

Dai

ly A

vera

ge P

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(MW

)Peak-AvSite BaseRHIC otherAGSRHIC Cryo

as of 31 May

RHIC Machine/Detector Planning Meeting17 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).

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rhic machine/detector planning meeting · ¾phobos proposal for ~ 4 hours 100x100 pp ... can start...

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