STAR results on central exclusive production in proton-proton collisions

Journal Article · Fri Apr 10 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4915971· OSTI ID:22391353

Przybycien, Mariusz ^[1]

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1. AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow (Poland)

We present a preliminary measurement of the Central Exclusive Production of the two oppositely charged pions produced in the process pp → ppπ{sup +} π{sup −}, obtained with the STAR detector at RHIC at √(s)=200 GeV. Silicon strip detectors placed in Roman Pots were used for tagging forward protons while pion pair tracks were reconstructed in the STAR Time Projection Chamber. Predictions of models based on Regge phenomenology are compared to the spectra of the kinematical variables corrected for detector acceptance and efficiency.

• OSTI ID: 22391353
• Journal Information: AIP Conference Proceedings, Vol. 1654, Issue 1; Conference: DIFFRACTION 2014: International Workshop on Diffraction in High-Energy Physics, Primosten (Croatia), 10-16 Sep 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BROOKHAVEN RHIC
COMPARATIVE EVALUATIONS
DIFFRACTION MODELS
EFFICIENCY
EXCLUSIVE INTERACTIONS
GEV RANGE
MULTIPARTICLE SPECTROMETERS
MULTIPLE PRODUCTION
PARTICLE IDENTIFICATION
PARTICLE TRACKS
PIONS MINUS
PIONS PLUS
PROTON-PROTON INTERACTIONS
PROTONS
SI SEMICONDUCTOR DETECTORS
TIME PROJECTION CHAMBERS