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Measurement of leading neutron production in deep-inelastic scattering at HERA

The production of leading neutrons, where the neutron carries a large fraction xLof the incoming proton’s longitudinal momentum, is studied in deep-inelastic positron-proton scattering at HERA. The data were taken with the H1 detector in the years 2006 and 2007 and correspond to an integrated lumino...

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Bibliographic Details
Main Authors: Aaron, Francisc Dionisie (Author) , Radescu, Voica (Author) , Sauter, Michel David (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author)
Corporate Author: H1 Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 16 July 2010
In: The European physical journal. C, Particles and fields
Year: 2010, Volume: 68, Pages: 381-399
ISSN:1434-6052
DOI:10.1140/epjc/s10052-010-1369-4
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1140/epjc/s10052-010-1369-4
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Author Notes:The H1 Collaboration*
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Summary:The production of leading neutrons, where the neutron carries a large fraction xLof the incoming proton’s longitudinal momentum, is studied in deep-inelastic positron-proton scattering at HERA. The data were taken with the H1 detector in the years 2006 and 2007 and correspond to an integrated luminosity of 122 pb−1. The semi-inclusive cross section is measured in the phase space defined by the photon virtuality 6<Q2<100 GeV2, Bjorken scaling variable 1.5⋅10−4<x<3⋅10−2, longitudinal momentum fraction 0.32<xL<0.95 and neutron transverse momentum pT<0.2 GeV. The leading neutron structure function, $F_{2}^{LN(3)}(Q^{2},x,x_{L})$, and the fraction of deep-inelastic scattering events containing a leading neutron are studied as a function of Q2, x and xL. Assuming that the pion exchange mechanism dominates leading neutron production, the data provide constraints on the shape of the pion structure function.
Item Description:*The H1 Collaboration: F.D. Aaron, V. Radescu, M. Sauter, A. Schöning, H.-C. Schultz-Coulon [und 230 weitere Personen]
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Physical Description:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-010-1369-4

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