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Forward neutron PT distributions |
| Reference |
Preliminary ICHEP2010, July 2010
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| Figures |
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| Abstract | The production of leading neutrons, where the neutron carries a large fraction x_L of the incoming proton's longitudinal momentum,
is studied in deep-inelastic positron-proton scattering at HERA. The data are taken with the H1 detector in the years 2006 and 2007
and correspond to an integrated luminosity of 122 pb-1. The semi-inclusive double differential cross sections are measured
as function of a neutron longitudinal momentum fraction x_L and neutron transverse momentum sqaured p_T^2 in the phase space
defined by the photon virtuality 6 < Q2 < 100 GeV2, the inelasticity 0.05 < y < 0.6, the longitudinal momentum fraction 0.32 < xL < 1.00
and transverse momentum p_T < xL*0.69 GeV of the neutron.
The slopes of p_T^2 distributions are extracted in bins of x_L and are compared to different pion flux parameterisations. |
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