Two-photon exchange to proton electromagnetic properties in time-like region

  • The contributions of two-photon exchange in the process e++e→p+p including N and Δ intermediate states are estimated in a simple hadronic model. The corrections to the unpolarized cross section as well as to the polarized observables Px and Pz are evaluated. The results show the corrections to unpolarized cross section are small and the angle dependence becomes weak at small s after considering the N and Δ(1232) contributions simultaneously, while the correction to Pz is enhanced.

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  • [1] . Jones M K et al (Je erson Lab Hall A collaboration). Phys.Rev. Lett., 2000, 84: 13982. Gayou O et al (Jefferson Lab Hall A collaboration). Phys.Rev. Lett., 2002, 88: 0923013. Andivahis L et al. Phys. Rev. D, 1994, 50: 54914. Walker R C et al. Phys. Rev. D, 1994, 49: 56715. Arrington J, Phys. Rev. C, 2003, 68: 0343256. Christy M E et al. Phys. Rev. C, 2004, 70: 0152067. Qattan I A et al. Phys. Rev. Lett., 2005, 94: 1423018. Akhiezer A I, Rozentsveig L N, Shmushkevich I M. Sov.Phys. JETP, 1958, 6: 5889. Sachs R G. Phys. Rev., 1962, 126: 225610. Walecka J D. Nuovo Cimento, 1959, 11: 82111. Rosenbluth M N. Phys. Rev., 1950, 79: 61512. Maximon L C, Tjon J A. Phys. Rev. C, 2000, 62: 05432013. Guichon P A M, Vanderhaeghen M. Phys. Rev. Lett., 2003,91: 14230314. Blunden P G, Melnitchouk W, Tjon J A. Phys. Rev. Lett.,2003, 91: 14230415. Kondratyuk S, Blunden P G, Melnitchouk W, Tjon J A.Phys. Rev. Lett., 2005, 95: 17250316. CHEN Y C, Afanasev A, Brodsky S J, Carlson C E, VanderhaeghenM. Phys. Rev. Lett., 2004, 93: 12230117. Borisyuk D, Kobushkin A. Phys. Rev. C, 2006, 74: 06520318. Borisyuk D, Kobushkin A. Phys. Rev. C, 2007, 75: 03820219. Blunden P G, Melnitchouk W, Tjon J A. Phys. Rev. C,2005, 72: 03461220. Adamuscin C, Gakh G I, Tomasi-Gustafsson E.arXiv:0704.3375 [hep-ph]21. CHEN D Y, ZHOU H Q, DONG Y B. Phys. Rev. C, 2008,78: 04520822. ZHOU H Q, CHEN D Y, DONG Y B. Phys. Lett. B, 2009,675: 30523. Nagata K, ZHOU H Q, KAO C W, YANG C N.arXiv:0811.353924. Mertig R, Bohm M, Denner A. Comput. Phys. Commun.,1991, 64: 34525. Hahn T, Perez-Victoria M. Comput. Phys. Commun., 1999,118: 15326. Iachello F, Jackson A D, Lande A. Phys. Lett. B, 1973,43: 191; Gari M, Krümpelmann W. Z. Phys. A, 1985, 322:689; Gari M, Krumpelmann W. Phys. Lett. B, 1986, 173:10; Lomon E L. Phys. Rev. C, 2001, 64: 035204; Lomon EL, Phys. Rev. C, 2002, 66: 045501
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CHEN Dian-Yong, ZHOU Hai-Qing and DONG Yu-Bing. Two-photon exchange to proton electromagnetic properties in time-like region[J]. Chinese Physics C, 2009, 33(12): 1336-1339. doi: 10.1088/1674-1137/33/12/049
CHEN Dian-Yong, ZHOU Hai-Qing and DONG Yu-Bing. Two-photon exchange to proton electromagnetic properties in time-like region[J]. Chinese Physics C, 2009, 33(12): 1336-1339.  doi: 10.1088/1674-1137/33/12/049 shu
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Received: 2009-08-07
Revised: 1900-01-01
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Two-photon exchange to proton electromagnetic properties in time-like region

    Corresponding author: CHEN Dian-Yong,

Abstract: 

The contributions of two-photon exchange in the process e++e→p+p including N and Δ intermediate states are estimated in a simple hadronic model. The corrections to the unpolarized cross section as well as to the polarized observables Px and Pz are evaluated. The results show the corrections to unpolarized cross section are small and the angle dependence becomes weak at small s after considering the N and Δ(1232) contributions simultaneously, while the correction to Pz is enhanced.

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