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Title: STAR results on central exclusive production in proton-proton collisions

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.
Authors:
 [1]
  1. AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow (Poland)
Publication Date:
OSTI Identifier:
22391353
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1654; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
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