The cross-section for deeply virtual Compton scattering in the reaction ep --> egammap has been measured with the ZEUS detector at HERA using integrated luminosities of 95.0 pb(-1) of e(+) p and 16.7 pb(-1) of e(-) p collisions. Differential cross-sections are presented as a function of the exchanged-photon virtuality, Q(2), and the centre-of-mass energy, W, of the gamma*p system in the region 5 < Q(2) < 100 GeV(2) and 40 < W < 140 GeV. The measured cross-sections rise steeply with increasing W. The measurements are compared to QCD-based calculations. (C) 2003 Elsevier B.V. All rights reserved.

The cross-section for deeply virtual Compton scattering in the reaction ep --> egammap has been measured with the ZEUS detector at HERA using integrated luminosities of 95.0 pb(-1) of e(+) p and 16.7 pb(-1) of e(-) p collisions. Differential cross-sections are presented as a function of the exchanged-photon virtuality, Q(2), and the centre-of-mass energy, W, of the gamma*p system in the region 5 < Q(2) < 100 GeV(2) and 40 < W < 140 GeV. The measured cross-sections rise steeply with increasing W. The measurements are compared to QCD-based calculations. (C) 2003 Elsevier B.V. All rights reserved.

Measurement of deeply virtual Compton scattering at HERA

CAPUA, Marcella;MASTROBERARDINO, Anna;Schioppa M;TASSI, Enrico;
2003-01-01

Abstract

The cross-section for deeply virtual Compton scattering in the reaction ep --> egammap has been measured with the ZEUS detector at HERA using integrated luminosities of 95.0 pb(-1) of e(+) p and 16.7 pb(-1) of e(-) p collisions. Differential cross-sections are presented as a function of the exchanged-photon virtuality, Q(2), and the centre-of-mass energy, W, of the gamma*p system in the region 5 < Q(2) < 100 GeV(2) and 40 < W < 140 GeV. The measured cross-sections rise steeply with increasing W. The measurements are compared to QCD-based calculations. (C) 2003 Elsevier B.V. All rights reserved.
2003
The cross-section for deeply virtual Compton scattering in the reaction ep --> egammap has been measured with the ZEUS detector at HERA using integrated luminosities of 95.0 pb(-1) of e(+) p and 16.7 pb(-1) of e(-) p collisions. Differential cross-sections are presented as a function of the exchanged-photon virtuality, Q(2), and the centre-of-mass energy, W, of the gamma*p system in the region 5 < Q(2) < 100 GeV(2) and 40 < W < 140 GeV. The measured cross-sections rise steeply with increasing W. The measurements are compared to QCD-based calculations. (C) 2003 Elsevier B.V. All rights reserved.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/126952
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 220
  • ???jsp.display-item.citation.isi??? 186
social impact