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PHENIX Run 14 Report. Klaus Dehmelt For the Phenix collaboration Rhic & ags Annual User’s meeting june 19, 2014. PHENIX in Run 14. The PHENIX collaboration requested Au + Au @ 200 GeV for 12 weeks [Physics driven goal is 1.5 nb -1 recorded within |z| < 10 cm] - PowerPoint PPT Presentation
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KLAUS DEHMELTFOR THE PHENIX COLLABORATION
RHIC & AGS ANNUAL USER’S MEETINGJUNE 19 , 2014
PHENIX Run 14 Report
Klaus Dehmelt
PHENIX in Run 14
06/19/2014
2
The PHENIX collaboration requested Au + Au @ 200 GeV for 12 weeks
[Physics driven goal is 1.5 nb-1 recorded within |z| < 10 cm]to collect their definitive Heavy Ion Au + Au data sample
Focus on high precision measurements of Heavy Flavor production RAA and v2
for electrons and muons separated charm and bottom decays
Klaus Dehmelt
Heavy Quarks with PHENIX
06/19/2014
3
F/VTX detectors Tracking resolution better than 50 mm Vertex resolution better than 100 mm
D Au
e,m
AuD
X
J/
B
X
K
e
() → 312 mm (u) → 491 mm (c) → 123 mm () → 457 mm
DCA
AuAuD
B
e
e
Klaus Dehmelt
FVTX Data Set
06/19/2014
4
First Au+Au dataset for FVTXSimulation performance of nuclear
modification factor RAA
DGLV Additional collisional
dissociation processes
Klaus Dehmelt
VTX Data Set
06/19/2014
5
Simulation performance of RAA for VTX-system
CharmBeauty
Very different prediction whenconsidering extreme scenario of
beauty quarks following flow field
Klaus Dehmelt
VTX Data Set
06/19/2014
6
Example full unfolding from DCA electrons to parent mesons
Klaus Dehmelt
PHENIX Detectors
06/19/2014
7
PHENIX in Run 14
Klaus Dehmelt
PHENIX Vertex Detector System
06/19/2014
8
Barrel region |h|<1.2, almost 2 in f Pixel sensors at inner 2 layers Strip sensors at outer 2 layers
Forward region 1.2<|h|<2.7, 2 in f 4 layers of mini strips
(50x 2000 to 11000mm)
Klaus Dehmelt
PHENIX Vertex Detector System
06/19/2014
9
Refurbished Barrel VTX system
Klaus Dehmelt
PHENIX Vertex Detector System
06/19/2014
10
Refurbished Barrel VTX system
Klaus Dehmelt
PHENIX Vertex Detector System
06/19/2014
11
Refurbished Barrel VTX system + FVTX
Klaus Dehmelt
PHENIX Vertex Detector System
06/19/2014
12
Klaus Dehmelt
PHENIX IR
06/19/2014
13
F/VTX system installed in IR
Klaus Dehmelt
PHENIX Counting House
06/19/2014
14
Klaus Dehmelt
Run 14 The Parts
06/19/2014
15
2014 - Run 14 subdivided in
Au+Au at
Au+Au at
Klaus Dehmelt
PHENIX @ 15 GeV
06/19/2014
16
Run 14 Low Energy LE @ 15 GeV Physics declared for PHENIX on February 15 Goal for PHENIX: get detectors fully operational for physics
We have recorded a high quality Au+Au 15 GeV data set and have tested our new detectors in preparation for the 200 GeV run
Estimated number of (real) Au+Au @ 15 GeV events:
~ 15M events in [ 30 cm] (March 10) ℒ ~ 2.5/mb
~ 6.4M events in [ 10 cm] (March 10) ℒ ~ 1.1/mb
Klaus Dehmelt
PHENIX @ 15 GeV
06/19/2014
17
Very first additional distribution for BES energies from a small fraction of complete dataset
Klaus Dehmelt
Run 14 High Energy Run
06/19/2014
18
High energy run Au+Au @ 200 GeV was declared on March 15, about five days after LE run was finished
After 10 days set up B+Y longit. and horiz. cooling
Klaus Dehmelt
RHIC Performance
06/19/2014
19
Excellent RHIC performance Fast tune up, stochastic cooling working quickly Very good lifetime, default store length 10 – 11 hours,
fast turnaround
Klaus Dehmelt
RHIC Performance
06/19/2014
20
Excellent RHIC performance
Klaus Dehmelt
Run 14 High Energy Run
06/19/2014
21
First Physics store/run was 18046/405839, March 15
High Energy (HE) run for 93 days ~13 ½ weeksConcluded HE run with 193 fillsOur main goal for Au+Au @ 200 GeV was to
accumulate ℒ = 1.5 nb-1 for BBC-vertex |z| < 10 cm Optimal range for VTX coverage Accumulated = 2.56 nbℒ -1
171% of our goal Integrated luminosity is based on reconstructed events in
BBC-narrow vertex range
Klaus Dehmelt
PHENIX Performance
06/19/2014
22
Secured luminosity goal on May 14Integrated luminosityℒ = 2.56 nb-1
Corresponds to16.2B events
Recorded>19B events
June 16, 2014
Klaus Dehmelt
PHENIX Performance
06/19/2014
23
~ 1100 hours PHENIX physics runs ~ 1500 hours CAD stores > 80% efficiency
Klaus Dehmelt
PHENIX Detector Performance
06/19/2014
24
F/VTX detectors operating well Live area > 95% Internal alignment
Centroid for wedge residual : σ<3mm Centroid for DCA FVTX track-FVTX vertex within ±50mm
limits
Klaus Dehmelt
PHENIX Detector Performance
06/19/2014
25
F/VTX detectors operating well Successful repair and operation Pixel live area > 80 % Strip pixel live area > 85 %
1.0 GeV/c < pt < 1.5 GeV/c
F/VTX detectors operating well Preliminary alignment provides better than 100 mm
DCA
Klaus Dehmelt
Setting Up for 3He + Au
06/19/2014
26
Unique probe of geometryMake use of large tracking coverage of F/VTXMeasurement if hotspots in deposited energy
connect during time evolution v2 and v3?
Klaus Dehmelt
Setting Up for 3He + Au
06/19/2014
27
First collisions last night (Wednesday, June 19)
Klaus Dehmelt
Conclusion
06/19/2014
28
Run 14 Au+Au part successfully completedDetector is performing wellLuminosity goal early accomplished and well
exceededSuccessful running based on fantastic - RHIC - and - Collaborator - performance Setting up for exciting final measurement with 3He + Au @ 200 GeVExpecting end of run in 2014 by July 10Many thanks to my PHENIX fellows, C-AD members
and STAR crews
