Coherent vector meson photoproduction from deuterium at intermediate energies

T. C. Rogers, M. M. Sargsian, Mark Strikman

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We analyze the cross section for vector meson photoproduction off a deuteron for the intermediate range of photon energies starting at a few giga-electron-volts above the threshold and higher. We reproduce the steps in the derivation of the conventional nonrelativistic Glauber expression based on an effective diagrammatic method while making corrections for Fermi motion and intermediate-energy kinematic effects. We show that, for intermediate-energy vector meson production, the usual Glauber factorization breaks down, and we derive corrections to the usual Glauber method to linear order in longitudinal nucleon momentum. The purpose of our analysis is to establish methods for probing interesting physics in the production mechanism for mesons and heavier vector mesons. We demonstrate how neglecting the breakdown of Glauber factorization can lead to errors in measurements of basic cross sections extracted from nuclear data.

Original languageEnglish (US)
Article number045202
JournalPhysical Review C - Nuclear Physics
Volume73
Issue number4
DOIs
StatePublished - Jan 1 2006

Fingerprint

vector mesons
photoproduction
deuterium
factorization
breakdown
cross sections
deuterons
energy
kinematics
derivation
mesons
momentum
physics
thresholds
photons
electrons

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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Coherent vector meson photoproduction from deuterium at intermediate energies. / Rogers, T. C.; Sargsian, M. M.; Strikman, Mark.

In: Physical Review C - Nuclear Physics, Vol. 73, No. 4, 045202, 01.01.2006.

Research output: Contribution to journalArticle

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AB - We analyze the cross section for vector meson photoproduction off a deuteron for the intermediate range of photon energies starting at a few giga-electron-volts above the threshold and higher. We reproduce the steps in the derivation of the conventional nonrelativistic Glauber expression based on an effective diagrammatic method while making corrections for Fermi motion and intermediate-energy kinematic effects. We show that, for intermediate-energy vector meson production, the usual Glauber factorization breaks down, and we derive corrections to the usual Glauber method to linear order in longitudinal nucleon momentum. The purpose of our analysis is to establish methods for probing interesting physics in the production mechanism for mesons and heavier vector mesons. We demonstrate how neglecting the breakdown of Glauber factorization can lead to errors in measurements of basic cross sections extracted from nuclear data.

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