t-channel unitarity and photon cross sections

[en] We analyse the consequences of t-channel unitarity for the photon hadronic cross sections. We show that gamma((*))p and gamma((*))gamma((*)) elastic amplitudes must include the complex-j plane singularities associated with hadronic elastic amplitudes, and give the characteristics of possible new singularities. We also show that several different models of hadronic total cross sections can be used to predict the LEP data from the HERA measurements. (C) 2004 Elsevier B.V. All rights reserved.

Disciplines :

Physics

Author, co-author :

Cudell, Jean-René ; Université de Liège - ULiège > Département d'astrophys.

Martynov, E.

Soyez, G.

Language :

English

Title :

t-channel unitarity and photon cross sections

Publication date :

22 March 2004

Journal title :

Nuclear Physics B

ISSN :

0550-3213

eISSN :

1873-1562

Publisher :

Elsevier Science Bv, Amsterdam, Netherlands

Volume :

682

Issue :

1-2

Pages :

391-420

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://arxiv.org/abs/hep-ph/0207196

Available on ORBi :

since 04 December 2008

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