在2.85 GeV的pp → p Λ K+反应中形成深束缚紧凑K-pp态的证据
核实验
2010-04-06 v1
摘要
我们分析了DISTO实验中2.85 GeV能量下独占性pp → p Λ K+反应的数据，以寻找在pp → K+ + X反应中形成的强束缚紧凑K-pp（= X）态。观测到的具有高横向动量的p和K+的K+缺失质量谱和p Λ不变质量谱显示出一个宽而明显的峰，其质量M_X = 2265 ± 2（统计）± 5（系统）MeV/c²，宽度Γ_X = 118 ± 8（统计）± 10（系统）MeV。
引用
@article{arxiv.1002.3526,
title = {Indication of a deeply bound compact K-pp state formed in the pp -> p Lambda K+ reaction at 2.85 GeV},
author = {T. Yamazaki and M. Maggiora and P. Kienle and K. Suzuki and A. Amoroso and M. Alexeev and F. Balestra and Y. Bedfer and R. Bertini and L. C. Bland and A. Brenschede and F. Brochard and M. P. Bussa and Seonho Choi and M. L. Colantoni and R. Dressler and M. Dzemidzic and J. -Cl. Faivre and L. Ferrero and J. Foryciarz and I. Froehlich and V. Frolov and R. Garfagnini and A. Grasso and S. Heinz and W. W. Jacobs and W. Kuhn and A. Maggiora and D. Panzieri and H. -W. Pfaff and G. Pontecorvo and A. Popov and J. Ritman and P. Salabura and S. Sosio and V. Tchalyshev and S. E. Vigdor},
journal= {arXiv preprint arXiv:1002.3526},
year = {2010}
}
备注
4 pages, 4 figures