# Presentation: 803784

## RHIC Machine/Detector Planning Meeting 27 Nov 07

_**Agenda**_
- Power use (Pile)
- Progress toward Physics

**Planning Meeting Web Site****: http://www.c-ad.bnl.gov/esfd/RMEM_08/rhic_planning.htm**

## As of 11/26/07

## New for FY08 – 45 degree cold wave

**As of 11/26/07**

## As of 11/26/07

## As of 11/26/07

## Machine declared operational 

**Machine declared operational **
**for Physics at 1600 hrs**
*******=1 m, 56x56 bunches**

**~8 x 10****28**** cm****-2****s****-1 **
**(250 Hz = 0.07 x 10****28**** cm****-2****s****-1****)**

## RHIC Machine/Detector Planning Meeting

- Lave(store) - GOAL

_**RHIC Machine/Detector Planning Meeting**_

- 26 Mar 2003
- Page 10/14

**ZDC=22K-11K in 2.2 hrs,*********=2m**

**d=58, Au=35**

## ZDC=29K-14.5K in 3 hrs,*=1m

**ZDC=29K-14.5K in 3 hrs,*********=1m**

**d=45, Au=35**

**Expected ZDC rate (scaling from Run 03) = 22K*(45*35)/(58*35)*2/1 = 34 **

## RHIC Machine/Detector Planning Meeting27 Nov 07

_**Next Meeting**_
**                            **_***Tuesday***_**, December 4**
_**Agenda item:**_
**Low Energy Run Proposal - Satogata**

**Planning Meeting Web Site****: http://www.c-ad.bnl.gov/esfd/RMEM_08/rhic_planning.htm**

## 	Run 8 Log
25 Oct, begin 45 degree cold wave (2.5 MW-NEW)
1 Nov, Cool-down to 4.5 degrees begins
4 Nov, Blue ring cold but still stabilizing
6 Nov, Blue and Yellow cold and stable (0.9 weeks into run)
8 Nov, Beam in Blue ring, “Setup Mode begins”
16 Nov, Beam in Blue and Yellow rings
18 Nov, First collisions (2.6 weeks into run)
19 Nov, Experiment Magnets on, begin night shifts for experiments, “Ramp-up Mode” begins (2.7 weeks into run)
26 Nov (1600 hrs), Machine declared operational for Physics (3.7 weeks into run)

**25 Oct, begin 45 degree cold wave (2.5 MW-**_**NEW**_**)**
**1 Nov, Cool-down to 4.5 degrees begins**
**4 Nov, Blue ring cold but still stabilizing**
**6 Nov, Blue and Yellow cold and stable (0.9 weeks into run)**
**8 Nov, Beam in Blue ring, “Setup Mode begins”**
**16 Nov, Beam in Blue and Yellow rings**
**18 Nov, First collisions (2.6 weeks into run)**
**19 Nov, Experiment Magnets on, begin night shifts for experiments, “Ramp-up Mode” begins (2.7 weeks into run)**
**26 Nov (1600 hrs), Machine declared operational for Physics (3.7 weeks into run)**

## Slide 11

## Slide 12

## 
Experiments luminosity goals for Run 8, 100 x 100 GeV pp

PHENIX
Delivered luminosity = 140 nb-1 
Recorded luminosity = 35 nb-1
Longitudal Polarization goal: 26 nb-1
Transverse polarization luminosity goal: 9 nb-1
Assumed efficiencies: 48% vertex, 64% up, 82% live  25% overall
Assumed polarization: 65%
Approximate physics weeks: 12

STAR
Delivered luminosity = 90 nb-1
Longitudal polarization goal: 60 nb-1
Transverse polarization luminosity goal: 30 nb-1
Slow detector sampled luminosity (Transverse and Longitudal) = 30 nb-1
Assumed efficiencies: 50% uptime, 65% live  33% overall
Assumed polarization: 65%
Approximate physics weeks: 12

pp2pp: 3 days of dedicated running 
Goals: 20M elastics, 300K double pomeron exchange events

An issue:  In 2006 it took 6 weeks of physics running to get from ~45% polarization to ~60% polarization, above goals assume 65% from physics day 1

_**Experiments luminosity goals for Run 8, 100 x 100 GeV pp**_
**PHENIX**
**Delivered luminosity = ****140 ****nb****-1 **
**Recorded luminosity = ****35 ****nb****-1**
**Longitudal Polarization goal: ****26 ****nb****-1**
**Transverse polarization luminosity goal: ****9 ****nb****-1**
**Assumed efficiencies: 48% vertex, 64% up, 82% live ******** ****25% overall**
**Assumed polarization:**** 65%**
**Approximate physics weeks: ****12**
**STAR**
**Delivered luminosity = ****90**** nb****-1**
**Longitudal polarization goal: ****60**** nb****-1**
**Transverse polarization luminosity goal: ****30 ****nb****-1**
**Slow detector sampled luminosity (Transverse and Longitudal) = ****30**** nb****-1**
**Assumed efficiencies: 50% uptime, 65% live ******** ****33% overall**
**Assumed polarization:**** 65%**
**Approximate physics weeks: ****12**
**pp2pp: 3 days of dedicated running **
**Goals: 20M elastics, 300K double pomeron exchange events**
_***An issue:***_***  ***In 2006 it took 6 weeks of physics running to get from ~45% polarization to ~60% polarization, above goals assume 65% from physics day 1

**(Last update 23 Oct 07)**

## Phenix Goal

**Phenix Goal**

**PHENIX Goal**

**STAR Goal**

**STAR and PHENIX Plan**

## 				(last update 10/23/07)
Experiments luminosity goals for Run 8 100 x 100 GeV/n d-Au

PHENIX
Delivered luminosity = 230 nb-1 
Recorded luminosity = 58 nb-1
Assumed efficiencies: 48% vertex, 53% live  25% overall
Approximate weeks: 10

STAR
Delivered luminosity = 120 nb-1
Fast Detector sampled luminosity = 60 nb-1 
Slow Detector sampled luminosity = 30 nb-1
Fast detector overall sampling efficiency = 50%
Approximate weeks: 10

Monopole Proposal – Detector Tests
Once ~ 20:1 signal to background is achieved in building 902, move to 10:00 IR, reestablish good signal to background and then request collisions

_**Experiments luminosity goals for Run 8 100 x 100 GeV/n d-Au**_
**PHENIX**
**Delivered luminosity = ****230 ****nb****-1 **
**Recorded luminosity = ****58 ****nb****-1**
**Assumed efficiencies: 48% vertex, 53% live ******** ****25% overall**
**Approximate weeks: 10**
**STAR**
**Delivered luminosity = ****120**** nb****-1**
**Fast Detector sampled luminosity = ****60**** nb****-1 **
**Slow Detector sampled luminosity = ****30**** nb****-1**
**Fast detector overall sampling efficiency = ****50%**
**Approximate weeks: 10**
**Monopole Proposal – Detector Tests**
**Once ~ 20:1 signal to background is achieved in building 902, move to 10:00 IR, reestablish good signal to background and then request collisions**

## PHENIX Goal

**PHENIX Goal**

**STAR Goal**

**STAR and PHENIX Plan**

## Slide 17

## Fischer et.al. Possible 30 week run schedule