1 AGeV 下 C+C 碰撞中双电子产生的研究
核实验
2008-11-26 v3
摘要
研究了入射能量为每核子 1 GeV 的 C+C 碰撞中 e+e-对的发射。测得的产生概率跨越从-Dalitz 到不变质量区域，显示出明显超出标准强子源混合谱的过剩。发现这种过剩对轰击能量的依赖性类似于介子产生，而非介子产生。数据与先前 DLS 实验获得的结果吻合良好。
引用
@article{arxiv.0711.4281,
title = {Study of dielectron production in C+C collisions at 1 AGeV},
author = {HADES Collaboration and G. Agakishiev and C. Agodi and H. Alvarez Pol and A. Balanda and R. Bassini and G. Bellia and D. Belver and A. Belyaev and A. Blanco and M. Boehmer and A. Bortolotti and J. L. Boyard and P. Braun-Munzinger and P. Cabanelas and E. Castro and T. Christ and M. Destefanis and J. Diaz and F. Dohrmann and A. Dybczak and T. Eberl and L. Fabbietti and P. Finocchiaro and P. Fonte and J. Friese and I. Froehlich and T. Galatyuk and J. A. Garzon and R. Gernhaeuser and A. Gil and C. Gilardi and M. Golubeva and D. Gonzalez Diaz and E. Grosse and F. Guber and M. Heilmann and T. Hennino and R. Holzmann and A. Ierusalimov and I. Iori and A. Ivashkin and M. Jurkovic and B. Kaempfer and K. Kanaki and T. Karavicheva and D. Kirschner and I. Koenig and W. Koenig and B. W. Kolb and R. Kotte and A. Kozuch and A. Krasa and F. Krizek and R. Kruecken and W. Kuehn and A. Kugler and A. Kurepin and J. Lamas Valverde and S. Lang and J. S. Lange and K. Lapidus and L. Lopes and L. Maier and A. Mangiarotti and J. Marin and J. Markert and V. Metag and B. Michalska and D. Mishra and E. Moriniere and J. Mousa and M. Muench and C. Muentz and L. Naumann and R. Novotny and J. Otwinowski and Y. C. Pachmayer and M. Palka and Y. Parpottas and V. Pechenov and O. Pechenova and T. Perez and J. Pietraszko and R. Pleskac and W. Przygoda and B. Ramstein and A. Reshetin and M. Roy Stephan and A. Rustamov and A. Sadovsky and B. Sailer and P. Salabura and A. Schmah and R. Simon and Y. Sobolev and S. Spataro and B. Spruck and H. Stroebele and J. Stroth and C. Sturm and M. Sudol and A. Tarantola and K. Teilab and P. Tlusty and A. Toia and M. Traxler and R. Trebacz and H. Tsertos and I. Veretenkin and V. Wagner and M. Weber and H. Wen and M. Wisniowski and T. Wojcik and J. Wuestenfeld and S. Yurevich and Y. Zanevsky and P. Zhou and P. Zumbruch},
journal= {arXiv preprint arXiv:0711.4281},
year = {2008}
}
备注
submitted to Physics Letters B