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arxiv: 1303.5049 · v1 · submitted 2013-03-20 · ⚛️ nucl-ex

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Hard Two-body Photodisintegration of 3He

I. Pomerantz , Y. Ilieva , R. Gilman , D. W. Higinbotham , E. Piasetzky , S. Strauch , K.P. Adhikari , M. Aghasyan
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K. Allada M.J. Amaryan S. Anefalos Pereira M. Anghinolfi H. Baghdasaryan J. Ball N.A. Baltzell M. Battaglieri V. Batourine A. Beck S. Beck I. Bedlinskiy B.L. Berman A.S. Biselli W. Boeglin J. Bono C. Bookwalter S. Boiarinov W.J. Briscoe W.K. Brooks N. Bubis V. Burkert A. Camsonne M. Canan D.S. Carman A. Celentano S. Chandavar G. Charles K. Chirapatpimol E. Cisbani P.L. Cole M. Contalbrigo V. Crede F. Cusanno A. D'Angelo A. Daniel N. Dashyan C.W. de Jager R. De Vita E. De Sanctis A. Deur C. Djalali G.E. Dodge D. Doughty R. Dupre C. Dutta H. Egiyan A. El Alaoui L. El Fassi P. Eugenio G. Fedotov S. Fegan J.A. Fleming A. Fradi F. Garibaldi O. Geagla N. Gevorgyan K.L. Giovanetti F.X. Girod J. Glister J.T. Goetz W. Gohn E. Golovatch R.W. Gothe K.A. Griffioen B. Guegan M. Guidal L. Guo K. Hafidi H. Hakobyan N. Harrison D. Heddle K. Hicks D. Ho M. Holtrop C.E. Hyde D.G. Ireland B.S. Ishkhanov E.L. Isupov X. Jiang H.S. Jo K. Joo A.T. Katramatou D. Keller M. Khandaker P. Khetarpal E. Khrosinkova A. Kim W. Kim F.J. Klein S. Koirala A. Kubarovsky V. Kubarovsky S.V. Kuleshov N.D. Kvaltine B. Lee J.J. LeRose S. Lewis R. Lindgren K. Livingston H.Y. Lu I.J.D. MacGregor Y. Mao D. Martinez M. Mayer E. McCullough B. McKinnon D. Meekins C.A. Meyer R. Michaels T. Mineeva M. Mirazita B. Moffit V. Mokeev R.A. Montgomery H. Moutarde E. Munevar C. Munoz Camacho P. Nadel-Turonski R. Nasseripour C.S. Nepali S. Niccolai G. Niculescu I. Niculescu M. Osipenko A.I. Ostrovidov L.L. Pappalardo R. Paremuzyan K. Park S. Park G.G. Petratos E. Phelps S. Pisano O. Pogorelko S. Pozdniakov S. Procureur D. Protopopescu A.J.R. Puckett X. Qian Y. Qiang G. Ricco D. Rimal M. Ripani B.G. Ritchie I. Rodriguez G. Ron G. Rosner P. Rossi F. Sabatie A. Saha M.S. Saini A.J. Sarty B. Sawatzky N.A. Saylor D. Schott E. Schulte R.A. Schumacher E. Seder H. Seraydaryan R. Shneor G.D. Smith D. Sokhan N. Sparveris S.S. Stepanyan S. Stepanyan P. Stoler R. Subedi V. Sulkosky M. Taiuti W. Tang C.E. Taylor S. Tkachenko M. Ungaro B. Vernarsky M.F. Vineyard H. Voskanyan E. Voutier N.K. Walford Y. Wang D.P. Watts L.B. Weinstein D.P. Weygand B. Wojtsekhowski M.H. Wood X. Yan H. Yao N. Zachariou X. Zhan J. Zhang Z.W. Zhao X. Zheng I. Zonta (The CLAS Hall-A Collaborations)
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keywords anglecenter-of-massdimensionalphotodisintegrationscalingabovecrossdeuteron
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We have measured cross sections for the gamma+3He->p+d reaction at photon energies of 0.4 - 1.4 GeV and a center-of-mass angle of 90 deg. We observe dimensional scaling above 0.7 GeV at this center-of-mass angle. This is the first observation of dimensional scaling in the photodisintegration of a nucleus heavier than the deuteron.

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