关于Kpp的DISTO数据
高能物理 - 实验
2012-08-27 v1
摘要
为了寻找深束缚态K- pp（记为X），该态将在二元过程pp -> K+ X中形成，我们对DISTO合作组在T_p = 2.85 GeV下获取的pp -> p K+ Lambda独占反应数据进行了重新分析。DeltaM_{K+}缺失质量谱和M_{p Lambda}不变质量谱的初步结果显示，对于质子和介子的大横向动量，存在一个明显的宽峰，其质量M_X = 2265 ± 2 MeV/c^2，宽度Gamma_X = 118 ± 8 MeV/c^2。
引用
@article{arxiv.0912.5116,
title = {DISTO data on Kpp},
author = {M. Maggiora and P. Kienle and K. Suzuki and T. Yamazaki and DISTO Collaboration and : and M. Alexeev and A. Amoroso and F. Balestra and Y. Bedfer and R. Bertini and L. C. Bland and A. Brenschede and F. Brochard and M. P. Bussa and S. Choi and M. L. Colantoni and R. Dressler and M. Dzemidzic and J. Cl. Faivre and L. Ferrero and J. Foryciarz and I. Fröhlich and V. Frolov and R. Garfagnini and A. Grasso and S. Heinz and W. W. Jacobs and W. Kühn and A. Maggiora and D. Panzieri and S. Sosio and H. W. Pfaff and G. Pontecorvo and A. Popov and J. Ritman and P. Salabura and V. Tchalyshev and S. E. Vigdor},
journal= {arXiv preprint arXiv:0912.5116},
year = {2012}
}
备注
8 pages, 4 figures. Talk presented at the "10th International Conference on Hypernuclear and Strange Particle Physics" (HYP-X), Tokai, Ibaraki, Japan, September 14th-18th, 2009. To appear in the proceedings