j/psi l2 trigger study auau200

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STAR J/psi L2 Trigger Study AuAu200 HF PWG

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J/psi L2 Trigger Study AuAu200. HF PWG. General parameters. Requested by: HF PWG Reasoning: Needed for J/psi L2 trigger study (urgent need before the Run starts) Task: study of J/psi L2 trigger rejection power Beam: Au+Au 200 Vertex:= 0 σ x = 0.01 = 0 σ y = 0.01 - PowerPoint PPT Presentation

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Page 1: J/psi L2 Trigger Study AuAu200

STAR

J/psi L2 Trigger Study AuAu200

HF PWG

Page 2: J/psi L2 Trigger Study AuAu200

STAR StarSoft local

General parameters

Requested by: HF PWG

Reasoning: Needed for J/psi L2 trigger study (urgent need before the Run starts)

Task: study of J/psi L2 trigger rejection power

Beam: Au+Au 200

Vertex: <X>= 0 σx = 0.01

<Y>= 0 σy = 0.01

<Z>= 0. σz = 10

Zcut = +- 30

Page 3: J/psi L2 Trigger Study AuAu200

STAR Victor Perevoztchikov, BNL StarSoft local

GeneratorGenerator: Hijing MinbiasControl file:' Events ' 100' Frame/Energy ' 'CMS' 200. ' Projectile type/A/Z ' 'A' 197 79 ' Target type/Z/Z ' 'A' 197 79 ' Impact parameter min/max (fm) ' 0. 20. ' Jet quenching (1=yes/0=no) ' 0 ' Hard scattering/pt jet ' 0 2.0 ' Max # jets per nucleon (D=10) ' 10 ' Set ihpr2(11) and ihpr2(12) ' 1 1' Set ihpr2(21) and ihpr2(18) ' 1 0' set B production ' 1.5 ' istat=1 old istat>1 new ' 2

Page 4: J/psi L2 Trigger Study AuAu200

STAR

Statistics

Total 40K events

StarSoft local

Page 5: J/psi L2 Trigger Study AuAu200

STAR

Geometry

• Geometry y2010 = y2009 with BTOF66

StarSoft local