Title of article :
Leading neutron production in e+p collisions at HERA Original Research Article
Author/Authors :
ZEUS Collaboration، نويسنده , , S Chekanov، نويسنده , , D Krakauer، نويسنده , , S Magill، نويسنده , , B Musgrave، نويسنده , , A Pellegrino، نويسنده , , J. Repond، نويسنده , , R Yoshida، نويسنده , , M.C.K. Mattingly، نويسنده , , P Antonioli، نويسنده , , G Bari، نويسنده , , M Basile، نويسنده , , L Bellagamba، نويسنده , , D Boscherini، نويسنده , , A Bruni، نويسنده , , G Bruni، نويسنده , , G. Cara Romeo، نويسنده , , L Cifarelli، نويسنده , , F. Cindolo، نويسنده , , G. Bragato and M. Contin ، نويسنده , , et al.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2002
Pages :
54
From page :
3
To page :
56
Abstract :
The production of neutrons carrying at least 20% of the proton beam energy (xL> 0.2) in e+p collisions has been studied with the ZEUS detector at HERA for a wide range of Q2, the photon virtuality, from photoproduction to deep inelastic scattering. The neutron-tagged cross section, ep→e′Xn, is measured relative to the inclusive cross section, ep→e′X, thereby reducing the systematic uncertainties. For xL> 0.3, the rate of neutrons in photoproduction is about half of that measured in hadroproduction, which constitutes a clear breaking of factorisation. There is about a 20% rise in the neutron rate between photoproduction and deep inelastic scattering, which may be attributed to absorptive rescattering in the γp system. For 0.64
Journal title :
Nuclear Physics B
Serial Year :
2002
Journal title :
Nuclear Physics B
Record number :
879012
Link To Document :
