# QM 2011 - XXII International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

May 22 – 28, 2011
Centre Bonlieu
Europe/Zurich timezone

## Charged Particle Ratios for p+p Collisions in √s = 62.4 GeV at RHIC

Not scheduled
Théâtre National (Centre Bonlieu)

France
Board: 61

### Speaker

Shikshit Gupta (Department of Physics)

### Description

The ratios of particle production in hadronic interactions are important indicators of the collision dynamics [1]. These can be used to probe the process of hadronization in high energy collisions. We present measurements of mid-rapidity anti-particle to particle ratios in p + p collisions at √s = 62.4 GeV from the STAR experiment. The measurements of the anti-particle to particle ratios are studied as a function of transverse momentum (pT ) and comparison is made with corresponding ISR results for the p + p collisions at √s = 63 GeV [2]. Identiﬁcation of charged hadrons (π^± , k^± , p and pbar) was done primarily through time projection chamber measurements. Charged hadrons are identiﬁed by using speciﬁc ionization energy loss (dE/dx) at the low momentum region [3]. References [1] H. Satz , Rep .Prog .Phys . 63 (2000) 151. [2] B. Alper et al., NuclearPhysicsB 100 (1975) 237-290. [3] B. I. Abelev et al., [STAR Collaboration], Phys .Rev .C 79 (2009) 34909.

### Primary author

Shikshit Gupta (Department of Physics)

### Presentation materials

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