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Study of e(+)e(-) -> p(p)over-bar in the vicinity of psi(3770)
BESIII Callaboration
2014
发表期刊PHYSICS LETTERS B
卷号735页码:101-107
通讯作者Liang, YT (reprint author), Univ Giessen, D-35392 Giessen, Germany.
摘要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). (< 0.166 pb at the 90% confidence level), or sigma(e(+)e(-) -> psi(3770) -> p<(p)over bar>) = (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.
关键词BRANCHING FRACTION E&E-ANNIHILATION CHARM THRESHOLD CROSS-SECTIONS
学科领域Physics
DOI10.1016/j.physletb.2014.06.013
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000340048900018
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213749
专题实验物理中心
作者单位中国科学院高能物理研究所
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BESIII Callaboration. Study of e(+)e(-) -> p(p)over-bar in the vicinity of psi(3770)[J]. PHYSICS LETTERS B,2014,735:101-107.
APA BESIII Callaboration.(2014).Study of e(+)e(-) -> p(p)over-bar in the vicinity of psi(3770).PHYSICS LETTERS B,735,101-107.
MLA BESIII Callaboration."Study of e(+)e(-) -> p(p)over-bar in the vicinity of psi(3770)".PHYSICS LETTERS B 735(2014):101-107.
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