Document Type
Article
Publication Date
6-24-2004
Abstract
The photoproduction of D*±(2010) mesons associated with a leading neutron has been observed with the ZEUS detector in ep collisions at HERA using an integrated luminosity of 80 pb-1. The neutron carries a large fraction, xL>0.2, of the incoming proton beam energy and is detected at very small production angles, θn< 0.8 mrad, an indication of peripheral scattering. The D* meson is centrally produced with pseudorapidity η1.9 GeV, which is large compared to the average transverse momentum of the neutron of 0.22 GeV. The ratio of neutron-tagged to inclusive D* production is 8.85±0.93(stat.) +0.48-0.61(syst.)% in the photon-proton center-of-mass energy range 130
Journal Title
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume
590
Issue
3-4
First Page
143
Last Page
160
DOI
10.1016/j.physletb.2004.03.076
First Department
Physics
Recommended Citation
Chekanov, S.; Derrick, M.; Krakauer, D.; Loizides, J. H.; Magill, S.; Miglioranzi, S.; Musgrave, B.; Repond, J.; Yoshida, R.; Mattingly, Margarita C. K.; Antonioli, P.; Bari, G.; Basile, M.; Bellagamba, L.; Boscherini, D.; Bruni, A.; Bruni, G.; Cara Romeo, G.; Cifarelli, L.; Cindolo, F.; Contin, A.; Corradi, M.; de Pasquale, S.; Giusti, P.; Iacobucci, G.; Margotti, A.; Montanari, A.; Nania, R.; Palmonari, F.; Pesci, A.; and Sartorelli, G., "Photoproduction of D*± Mesons Associated with a Leading Neutron" (2004). Faculty Publications. 2201.
https://digitalcommons.andrews.edu/pubs/2201
Acknowledgements
Accepted version retrieved April 13, 2021 from https://arxiv.org/pdf/hep-ex/0401017.pdf