Exclusive p(+)p(-) production in two-photon collisions between a quasi-real photon, gamma, and a mid-virtuality photon, gamma*, is studied with data collected at LEP at centre-of-mass energies 183 GeV <= root s- <= 209 GeV with a total integrated luminosity of 684.8 pb(-1). The cross section of the gamma gamma* -> p(+)p(-) process is determined as a function of the photon virtuality, Q(2), and the two-photoncentre-of-mass energy, W-gamma gamma, in thekinernatic region: 0.2 GeV2 < Q(2) < 0.85 GeV2 and 1.1 GeV < W gamma gamma < 3 GeV. These results, together with previous L-3 measurements of p(0) p(0) and p(+) to p(-) production, allow a study of the gamma gamma* -> pp process over the Q(2)-region 0.2 GeV2 <= Q(2) <= 30 GeV2. (c) 2005 Published by Elsevier B.V.

Measurement of exclusive p(+)p(-) production in mid-virtuality two-photon interactions and study of the yy* -> pp process at LEP / P., A., O., A., M., A.B., J., A., G., A., J., A., A., A., M. G., A., H., A., V. P., A., F., A., A., A., T., A., T., A., Bagnaia, P., A., B., G., B., L., B., S., B., S., B., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 615:(2005), pp. 19-30. [10.1016/j.physletb.2005.04.011]

Measurement of exclusive p(+)p(-) production in mid-virtuality two-photon interactions and study of the yy* -> pp process at LEP

BAGNAIA, Paolo;BORGIA, BRUNO;DIONISI, Carlo;GENTILE, Simonetta;GIAGU, Stefano;LONGO, Egidio;LUCI, Claudio;ORGANTINI, Giovanni;PARAMATTI, Riccardo;
2005

Abstract

Exclusive p(+)p(-) production in two-photon collisions between a quasi-real photon, gamma, and a mid-virtuality photon, gamma*, is studied with data collected at LEP at centre-of-mass energies 183 GeV <= root s- <= 209 GeV with a total integrated luminosity of 684.8 pb(-1). The cross section of the gamma gamma* -> p(+)p(-) process is determined as a function of the photon virtuality, Q(2), and the two-photoncentre-of-mass energy, W-gamma gamma, in thekinernatic region: 0.2 GeV2 < Q(2) < 0.85 GeV2 and 1.1 GeV < W gamma gamma < 3 GeV. These results, together with previous L-3 measurements of p(0) p(0) and p(+) to p(-) production, allow a study of the gamma gamma* -> pp process over the Q(2)-region 0.2 GeV2 <= Q(2) <= 30 GeV2. (c) 2005 Published by Elsevier B.V.
2005
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of exclusive p(+)p(-) production in mid-virtuality two-photon interactions and study of the yy* -> pp process at LEP / P., A., O., A., M., A.B., J., A., G., A., J., A., A., A., M. G., A., H., A., V. P., A., F., A., A., A., T., A., T., A., Bagnaia, P., A., B., G., B., L., B., S., B., S., B., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 615:(2005), pp. 19-30. [10.1016/j.physletb.2005.04.011]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/358251
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