Ds+ -- Ds- Asymmetry in Photoproduction

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dc.creatorHao, Gang
dc.creatorLi, Lin
dc.creatorQiao, Cong-Feng
dc.date2005-04-12
dc.date2005-06-04
dc.date.accessioned2026-07-07T10:44:17Z
dc.date.available2026-07-07T10:44:17Z
dc.descriptionConsidering of the possible difference in strange and antistrange quark distributions inside nucleon, we investigate the Ds+ -- Ds- asymmetry in photoproduction in the framework of heavy-quark recombination mechanism. We adopt two distribution models of strange sea, those are the light-cone meson-baryon fluctuation model and the effective chiral quark model. Our results show that the asymmetry induced by the strange quark distributions is distinct, which is measurable in experiments. And, there are evident differences between the predictions of our calculation and previous estimation. Therefore, the experimental measurements on the Ds+ -- Ds- asymmetry may impose a unique restriction on the strange-antistrange distribution asymmetry models.
dc.description11 page, 5 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0504087
dc.identifierhttp://arxiv.org/abs/hep-ph/0504087
dc.identifierPhys.Lett.B621:139-144,2005
dc.identifierdoi:10.1016/j.physletb.2005.06.057
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182540
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDs+ -- Ds- Asymmetry in Photoproduction
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