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

Journal Article · Fri Jul 15 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3601379· OSTI ID:21608259

Cisek, Anna; Schaefer, Wolfgang ^[1]; Szczurek, Antoni ^[1]

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1. Institute of Nuclear Physics PAN, PL-31-342 Cracow (Poland)

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.

• OSTI ID: 21608259
• Journal Information: AIP Conference Proceedings, Vol. 1350, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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