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Title: Exclusive production of vector mesons in pp and pp-bar collisions

Abstract

Protons and antiprotons at collider energies are a source of high energy Weizsaecker-Williams photons. This opens up a possibility to study at the LHC exclusive photoproduction of heavy vector mesons at energies much larger than possible at the HERA accelerator.We present selected results on the production of vector mesons {rho}, {omega}, {phi}, J/{Psi} and {Upsilon}. We show distributions in rapidity, transverse momentum of mesons and azimuthal angle between outgoing protons for RHIC, Tevatron and LHC energies. The absorption effects are discussed.The amplitude for {gamma}p{yields}Vp is calculated in a pQCD k{sub T}-factorization approach with an unintegrated gluon distribution constrained by inclusive deep-inelastic structure function. The total cross section for diffractive meson (virtual) photo-production as a function of energy and photon virtuality is calculated and compared to HERA data. We also discuss the ratio of the first radial excitation state (2S) to the ground state (1S) in diffractive J/{Psi} and {Upsilon} production.

Authors:
;  [1];  [1];  [2]
  1. Institute of Nuclear Physics PAN, PL-31-342 Cracow (Poland)
  2. (Poland)
Publication Date:
OSTI Identifier:
21608259
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1350; Journal Issue: 1; Conference: DIFFRACTION 2010: International workshop on diffraction in high energy physics, Otranto (Italy), 10-15 Sep 2010; Other Information: DOI: 10.1063/1.3601379; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BROOKHAVEN RHIC; CERN LHC; DEEP INELASTIC SCATTERING; ENERGY DEPENDENCE; FACTORIZATION; FERMILAB TEVATRON; GLUONS; GROUND STATES; HERA STORAGE RING; PARTICLE RAPIDITY; PHOTOPRODUCTION; POLARIZATION; PROTON-ANTIPROTON INTERACTIONS; PROTON-PROTON INTERACTIONS; QUARK MODEL; STRUCTURE FUNCTIONS; TOTAL CROSS SECTIONS; TRANSVERSE MOMENTUM; VECTOR MESONS; ACCELERATORS; BARYON-BARYON INTERACTIONS; BASIC INTERACTIONS; BOSONS; COMPOSITE MODELS; CROSS SECTIONS; CYCLIC ACCELERATORS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY LEVELS; FUNCTIONS; HADRON-HADRON INTERACTIONS; HADRONS; HEAVY ION ACCELERATORS; INELASTIC SCATTERING; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LINEAR MOMENTUM; MATHEMATICAL MODELS; MESONS; NUCLEON-ANTINUCLEON INTERACTIONS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; PROTON-NUCLEON INTERACTIONS; SCATTERING; STORAGE RINGS; SYNCHROTRONS

Citation Formats

Cisek, Anna, Schaefer, Wolfgang, Szczurek, Antoni, and University of Rzeszow, PL-35-959 Rzeszow. Exclusive production of vector mesons in pp and pp-bar collisions. United States: N. p., 2011. Web. doi:10.1063/1.3601379.
Cisek, Anna, Schaefer, Wolfgang, Szczurek, Antoni, & University of Rzeszow, PL-35-959 Rzeszow. Exclusive production of vector mesons in pp and pp-bar collisions. United States. doi:10.1063/1.3601379.
Cisek, Anna, Schaefer, Wolfgang, Szczurek, Antoni, and University of Rzeszow, PL-35-959 Rzeszow. Fri . "Exclusive production of vector mesons in pp and pp-bar collisions". United States. doi:10.1063/1.3601379.
@article{osti_21608259,
title = {Exclusive production of vector mesons in pp and pp-bar collisions},
author = {Cisek, Anna and Schaefer, Wolfgang and Szczurek, Antoni and University of Rzeszow, PL-35-959 Rzeszow},
abstractNote = {Protons and antiprotons at collider energies are a source of high energy Weizsaecker-Williams photons. This opens up a possibility to study at the LHC exclusive photoproduction of heavy vector mesons at energies much larger than possible at the HERA accelerator.We present selected results on the production of vector mesons {rho}, {omega}, {phi}, J/{Psi} and {Upsilon}. We show distributions in rapidity, transverse momentum of mesons and azimuthal angle between outgoing protons for RHIC, Tevatron and LHC energies. The absorption effects are discussed.The amplitude for {gamma}p{yields}Vp is calculated in a pQCD k{sub T}-factorization approach with an unintegrated gluon distribution constrained by inclusive deep-inelastic structure function. The total cross section for diffractive meson (virtual) photo-production as a function of energy and photon virtuality is calculated and compared to HERA data. We also discuss the ratio of the first radial excitation state (2S) to the ground state (1S) in diffractive J/{Psi} and {Upsilon} production.},
doi = {10.1063/1.3601379},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1350,
place = {United States},
year = {2011},
month = {7}
}