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A measurement of coherent neutral pion production in neutrino neutral current interactions in the NOMAD experiment

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A measurement of coherent neutral pion production in neutrino neutral current interactions in the NOMAD experiment

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dc.contributor.author	NOMAD Collaboration
dc.contributor.author	Kullenberg, C. T.
dc.contributor.author	Cervera Villanueva, Anselmo
dc.contributor.author	Gómez Cadenas, Juan José
dc.contributor.author	Hernando Morata, José Ángel
dc.date.accessioned	2015-12-17T10:26:41Z
dc.date.available	2015-12-17T10:26:41Z
dc.date.issued	2009
dc.identifier.citation	NOMAD Collaboration Kullenberg, C. T. Cervera Villanueva, Anselmo Gómez Cadenas, Juan José Hernando Morata, José Ángel 2009 A measurement of coherent neutral pion production in neutrino neutral current interactions in the NOMAD experiment Physics Letters B 682 2 177 184
dc.identifier.uri	http://hdl.handle.net/10550/49570
dc.description.abstract	We present a Study of exclusive neutral pion production in neutrino-nucleus Neutral Current interactions using data from the NOMAD experiment at the CERN SPS. The data correspond to 1.44 x 10(6) muon-neutrino Charged Current interactions in the energy range 2.5 nu + A + pi(0) and single pi(0) production in neutrino-nucleon scattering. The signature of coherent pi(0) production is an emergent pi(0) almost collinear with the incident neutrino while pi(0)'s produced in neutrino-nucleon deep inelastic scattering have larger transverse momenta. In this analysis all relevant backgrounds to the coherent pi(0) production signal are measured using data themselves. Having determined the backgrounds, and using the Rein-Sehgal model for the coherent pi(0) production to compute the detection efficiency, we obtain 4630 +/- 522(stat) +/- 426(syst) corrected coherent-pi(0) events with E(pi 0) >= 0.5 GeV. We measure sigma(nu A -> nu A pi(0)) = 172.6 +/- 8.1 (stat) +/- 6.9(syst)] x 10(-40) cm(2)/nucleus. This is the most precise measurement of the coherent pi(0) production to date.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 2009, vol. 682, num. 2, p. 177-184
dc.subject	Física
dc.title	A measurement of coherent neutral pion production in neutrino neutral current interactions in the NOMAD experiment
dc.type	journal article	es_ES
dc.date.updated	2015-12-17T10:26:41Z
dc.identifier.doi	10.1016/j.physletb.2009.10.083
dc.identifier.idgrec	069882
dc.rights.accessRights	open access	es_ES