Study of e+e−→pp¯ in the vicinity of ψ(3770)

6533b82efe1ef96bd1293a9b

RESEARCH PRODUCT

Study of e+e−→pp¯ in the vicinity of ψ(3770)

M. Ablikim M.n. Achasov X.c. Ai O. Albayrak M. Albrecht D.j. Ambrose F.f. An Q. An J.z. Bai R. Baldini Ferroli Y. Ban J.v. Bennett M. Bertani J.m. Bian E. Boger O. Bondarenko I. Boyko S. Braun Roy A. Briere H. Cai X. Cai O. Cakir A. Calcaterra G.f. Cao S.a. Cetin J.f. Chang G. Chelkov G. Chen H.s. Chen J.c. Chen M.l. Chen S.j. Chen X. Chen X.r. Chen Y.b. Chen H.p. Cheng X.k. Chu Y.p. Chu D. Cronin-hennessy H.l. Dai J.p. Dai D. Dedovich Z.y. Deng A. Denig I. Denysenko M. Destefanis W.m. Ding Y. Ding C. Dong J. Dong L.y. Dong M.y. Dong S.x. Du J.z. Fan J. Fang S.s. Fang Y. Fang L. Fava C.q. Feng C.d. Fu O. Fuks Q. Gao Y. Gao C. Geng K. Goetzen W.x. Gong W. Gradl M. Greco M.h. Gu Y.t. Gu Y.h. Guan L.b. Guo T. Guo Y.p. Guo Y.l. Han F.a. Harris K.l. He M. He Z.y. He T. Held Y.k. Heng Z.l. Hou C. Hu H.m. Hu J.f. Hu T. Hu G.m. Huang G.s. Huang H.p. Huang J.s. Huang L. Huang X.t. Huang Y. Huang T. Hussain C.s. Ji Q. Ji Q.p. Ji X.b. Ji X.l. Ji L.l. Jiang L.w. Jiang X.s. Jiang J.b. Jiao Z. Jiao D.p. Jin S. Jin T. Johansson N. Kalantar-nayestanaki X.l. Kang X.s. Kang M. Kavatsyuk B. Kloss B. Kopf M. Kornicer W. Kühn A. Kupsc W. Lai J.s. Lange M. Lara P. Larin M. Leyhe C.h. Li Cheng Li Cui Li D. Li D.m. Li F. Li G. Li H.b. Li J.c. Li K. Li K. Li Lei Li P.r. Li Q.j. Li T. Li W.d. Li W.g. Li X.l. Li X.n. Li X.q. Li Z.b. Li H. Liang Y.f. Liang Y.t. Liang D.x. Lin B.j. Liu C.l. Liu C.x. Liu F.h. Liu Fang Liu Feng Liu H.b. Liu H.h. Liu H.m. Liu J. Liu J.p. Liu K. Liu K.y. Liu P.l. Liu Q. Liu S.b. Liu X. Liu Y.b. Liu Z.a. Liu Zhiqiang Liu Zhiqing Liu H. Loehner X.c. Lou G.r. Lu H.j. Lu H.l. Lu J.g. Lu X.r. Lu Y. Lu Y.p. Lu C.l. Luo M.x. Luo T. Luo X.l. Luo M. Lv F.c. Ma H.l. Ma Q.m. Ma S. Ma T. Ma X.y. Ma F.e. Maas M. Maggiora Q.a. Malik Y.j. Mao Z.p. Mao J.g. Messchendorp J. Min T.j. Min R.e. Mitchell X.h. Mo Y.j. Mo H. Moeini C. Morales Morales K. Moriya N.yu. Muchnoi H. Muramatsu Y. Nefedov F. Nerling I.b. Nikolaev Z. Ning S. Nisar X.y. Niu S.l. Olsen Q. Ouyang S. Pacetti M. Pelizaeus H.p. Peng K. Peters J.l. Ping R.g. Ping R. Poling M. Qi S. Qian C.f. Qiao L.q. Qin N. Qin X.s. Qin Y. Qin Z.h. Qin J.f. Qiu K.h. Rashid C.f. Redmer M. Ripka G. Rong X.d. Ruan A. Sarantsev K. Schoenning S. Schumann W. Shan M. Shao C.p. Shen X.y. Shen H.y. Sheng M.r. Shepherd W.m. Song X.y. Song S. Spataro B. Spruck G.x. Sun J.f. Sun S.s. Sun Y.j. Sun Y.z. Sun Z.j. Sun Z.t. Sun C.j. Tang X. Tang I. Tapan E.h. Thorndike D. Toth M. Ullrich I. Uman G.s. Varner B. Wang D. Wang D.y. Wang K. Wang L.l. Wang L.s. Wang M. Wang P. Wang P.l. Wang Q.j. Wang S.g. Wang W. Wang X.f. Wang Y.d. Wang Y.f. Wang Y.q. Wang Z. Wang Z.g. Wang Z.h. Wang Z.y. Wang D.h. Wei J.b. Wei P. Weidenkaff S.p. Wen M. Werner U. Wiedner M. Wolke L.h. Wu N. Wu Z. Wu L.g. Xia Y. Xia D. Xiao Z.j. Xiao Y.g. Xie Q.l. Xiu G.f. Xu L. Xu Q.j. Xu Q.n. Xu X.p. Xu Z. Xue L. Yan W.b. Yan W.c. Yan Y.h. Yan H.x. Yang L. Yang Y. Yang Y.x. Yang H. Ye M. Ye M.h. Ye B.x. Yu C.x. Yu H.w. Yu J.s. Yu S.p. Yu C.z. Yuan W.l. Yuan Y. Yuan A. Yuncu A.a. Zafar A. Zallo S.l. Zang Y. Zeng B.x. Zhang B.y. Zhang C. Zhang C.b. Zhang C.c. Zhang D.h. Zhang H.h. Zhang H.y. Zhang J.j. Zhang J.q. Zhang J.w. Zhang J.y. Zhang J.z. Zhang S.h. Zhang X.j. Zhang X.y. Zhang Y. Zhang Y.h. Zhang Z.h. Zhang Z.p. Zhang Z.y. Zhang G. Zhao J.w. Zhao Lei Zhao Ling Zhao M.g. Zhao Q. Zhao Q.w. Zhao S.j. Zhao T.c. Zhao X.h. Zhao Y.b. Zhao Z.g. Zhao A. Zhemchugov B. Zheng J.p. Zheng Y.h. Zheng B. Zhong L. Zhou Li Zhou X. Zhou X.k. Zhou X.r. Zhou X.y. Zhou K. Zhu K.j. Zhu X.l. Zhu Y.c. Zhu Y.s. Zhu Z.a. Zhu J. Zhuang B.s. Zou J.h. Zou

subject

Physics Nuclear and High Energy Physics Nuclear magnetic resonance Branching fraction Phase angle Analytical chemistry Bar (unit)

description

Using 2917 pb(-1) of data accumulated at 3.773 GeV, 44.5 pb(-1) of data accumulated at 3.65 GeV and data accumulated during a psi(3770) line-shape scan with the BESIII detector, the reaction e(+)e(-) -> p (p) over bar is studied considering a possible interference between resonant and continuum amplitudes. The cross section of e(+)e(-) -> psi(3770) -> p (p) over bar, sigma(e(+)e(-)-> psi(3770) -> p (p) over bar), is found to have two solutions, determined to be (0.059(-0.020)(+0.070) +/- 0.012) pb with the phase angle phi = (255.8(-26.6)(+39.0) +/- 4.8). ( psi(3770) -> p ) = (2.57(-0.13)(+0.12) +/- 0.12) pb with phi = (266.9(-6.3)(+6.1) +/- 0.9)degrees both of which agree with a destructive interference. Using the obtained cross section of psi(3770) -> p (p) over bar, the cross section of p (p) over bar -> psi(3770), which is useful information for the future PANDA experiment, is estimated to be either (9.8(-3.9)(+11.8)) nb (< 27.5 nb at 90% C.L.) or (425.6(-43.7)(+42.9)) nb. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.

year	journal	country	edition	language
2014-07-01	Physics Letters B

https://doi.org/10.1016/j.physletb.2014.06.013