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Cross Sections for the $\gamma p \to K^{*0}\Sigma^+$ Reaction at $E_\gamma = 1.7 - 3.0$ GeV

I. Hleiqawi K. Hicks D. Carman T. Mibe G. Niculescu A. Tkabladze M. Amarian P. Ambrozewicz G. Asryan H. Avakian H. Bagdasaryan N. Baillie J.P. Ball N.A. Baltzell V. Batourine M. Battaglieri K. Beard I. Bedlinskiy M. Bellis N. Benmouna B.L. Berman A.S. Biselli S. Bouchigny 1 S. Boiarinov R. Bradford D. Branford W.J. Briscoe W.K. Brooks S. Bültmann V.D. Burkert C. Butuceanu J.R. Calarco S.L. Careccia B. Carnahan S. Chen P.L. Cole P. Collins P. Coltharp D. Crabb H. Crannell V. Crede J.P. Cummings R. de Masi 2 R. de Vita E. de Sanctis P.V. Degtyarenko L. Dennis A. Deur C. Djalali R. Dickson G.E. Dodge J. Donnelly D. Doughty M. Dugger S. Dytman O.P. Dzyubak H. Egiyan L. Elouadrhiri P. Eugenio G. Fedotov G. Feldman R. Fersch R. Feuerbach M. Garçon 2 G. Gavalian G.P. Gilfoyle K.L. Giovanetti F.X. Girod 2 J.T. Goetz A. Gonenc R.W. Gothe K.A. Griffioen M. Guidal 1 N. Guler L. Guo V. Gyurjyan R.S. Hakobyan J. Hardie D. Heddle F.W. Hersman M. Holtrop C.E. Hyde-Wright Y. Ilieva D.G. Ireland B.S. Ishkhanov M.M. Ito D. Jenkins H.S. Jo 1 K. Joo 9 H.G. Juengst N. Kalantarians J.D. Kellie M. Khandaker K. Kim W. Kim A. Klein F.J. Klein A.V. Klimenko M. Kossov Z. Krahn L.H. Kramer V. Kubarovsky J. Kuhn S.E. Kuhn S.V. Kuleshov J. Lachniet J.M. Laget J. Langheinrich D. Lawrence J. Li K. Livingston H. Lu K. Lukashin M. Maccormick 1 S. Mcaleer B. Mckinnon J. Mcnabb B.A. Mecking M.D. Mestayer C.A. Meyer K. Mikhailov R. Minehart M. Mirazita R. Miskimen V. Mokeev K. Moriya S.A. Morrow 1, 2 M. Moteabbed G.S. Mutchler E. Munevar P. Nadel-Turonski R. Nasseripour S. Niccolai 1 I. Niculescu B.B. Niczyporuk M.R. Niroula R.A. Niyazov M. Nozar M. Osipenko A.I. Ostrovidov K. Park E. Pasyuk C. Paterson J. Pierce N. Pivnyuk O. Pogorelko S. Pozdniakov 19 B. Preedom J.W. Price Y. Prok D. Protopopescu B.A. Raue G. Riccardi G. Ricco M. Ripani B.G. Ritchie F. Ronchetti G. Rosner P. Rossi F. Sabatié 2 C. Salgado J.P. Santoro V. Sapunenko R.A. Schumacher V.S. Serov Y.G. Sharabian E.S. Smith L.C. Smith D.I. Sober A. Stavinsky S.S. Stepanyan S. Stepanyan B.E. Stokes P. Stoler I.I. Strakovsky S. Strauch M. Taiuti S. Taylor D.J. Tedeschi U. Thoma R. Thompson L. Todor S. Tkachenko C. Tur M. Ungaro M.F. Vineyard A.V. Vlassov K. Wang L.B. Weinstein D.P. Weygand S. Whisnant M. Williams E. Wolin M.H. Wood A. Yegneswaran L. Zana J. Zhang B. Zhao Z. Zhao
Abstract : Differential cross sections for the reaction $\gamma p \to K^{*0} \Sigma^+$ are presented at nine bins in photon energy in the range from 1.7 to 3.0 GeV. The \kstar was detected by its decay products, $K^+\pi^-$, in the CLAS detector at Jefferson Lab. These data are the first \kstar photoproduction cross sections ever published over a broad range of angles. Comparison with a theoretical model based on the vector and tensor $K^*$-quark couplings shows good agreement with the data in general, after adjusting the model's two parameters in a fit to our data. Disagreement between the data at forward angles and the global angle-energy fit to the model suggests that the role of scalar $\kappa$ meson exchange in $t$-channel diagrams should be investigated.
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Submitted on : Monday, November 5, 2007 - 11:21:09 AM
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I. Hleiqawi, K. Hicks, D. Carman, T. Mibe, G. Niculescu, et al.. Cross Sections for the $\gamma p \to K^{*0}\Sigma^+$ Reaction at $E_\gamma = 1.7 - 3.0$ GeV. Physical Review C, American Physical Society, 2007, 75, pp.042201(R). ⟨10.1103/PhysRevC.75.042201⟩. ⟨in2p3-00185061⟩

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