Exclusive electroproduction of phi mesons at HERAстатья
Статья опубликована в высокорейтинговом журнале
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Exclusive electroproduction of ϕ mesons has been studied in e±p collisions at s√=318\gev with the ZEUS detector at HERA using an integrated luminosity of 65.1 pb−1. The γ∗p cross section is presented in the kinematic range 2<Q2<70\gev2, 35<W<145\gev and |t|<0.6\gev2. The cross sections as functions of Q2, W, t and helicity angle θh are compared to cross sections for other vector mesons. The ratios R of the cross sections for longitudinally and transversely polarized virtual photons are presented as functions of Q2 and W. The data are also compared to predictions from theoretical models.