Tevatron 对撞机上顶夸克质量测量的组合
高能物理 - 实验
2015-06-05 v4
摘要
顶夸克是已知最重的基本粒子，其质量约为其同位旋伙伴底夸克质量的 40 倍。它在几乎 100% 的情况下衰变为一个 玻色子和一个底夸克。利用 Tevatron 质子-反质子对撞机上的顶夸克-反顶夸克对，CDF 和 {\dzero} 合作组在不同的末态中测量了顶夸克的质量，积分亮度高达 5.8 fb。本文报告了这些测量的组合，所得质量值比任何单一衰变通道所能提供的都更为精确。文中描述了系统不确定度及其关联的处理方法。确定的质量值为 GeV 或 GeV，其精度为 ，使其成为迄今最精确的顶夸克质量测定。
引用
@article{arxiv.1207.1069,
title = {Combination of the top-quark mass measurements from the Tevatron collider},
author = {The CDF and D0 collaborations and T. Aaltonen and V. M. Abazov and B. Abbott and B. S. Acharya and M. Adams and T. Adams and G. D. Alexeev and G. Alkhazov and A. Alton and B. Alvarez Gonzalez and G. Alverson and S. Amerio and D. Amidei and A. Anastassov and A. Annovi and J. Antos and G. Apollinari and J. A. Appel and T. Arisawa and A. Artikov and J. Asaadi and W. Ashmanskas and A. Askew and S. Atkins and B. Auerbach and K. Augsten and A. Aurisano and C. Avila and F. Azfar and F. Badaud and W. Badgett and T. Bae and L. Bagby and B. Baldin and D. V. Bandurin and S. Banerjee and A. Barbaro-Galtieri and E. Barberis and P. Baringer and V. E. Barnes and B. A. Barnett and P. Barria and J. F. Bartlett and P. Bartos and U. Bassler and M. Bauce and V. Bazterra and A. Bean and F. Bedeschi and M. Begalli and S. Behari and L. Bellantoni and G. Bellettini and J. Bellinger and D. Benjamin and A. Beretvas and S. B. Beri and G. Bernardi and R. Bernhard and I. Bertram and M. Besancon and R. 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Yao and T. Yasuda and Y. A. Yatsunenko and W. Ye and Z. Ye and G. P. Yeh and H. Yin and K. Yi and K. Yip and J. Yoh and K. Yorita and T. Yoshida and S. W. Youn and G. B. Yu and I. Yu and J. M. Yu and S. S. Yu and J. C. Yun and A. Zanetti and Y. Zeng and J. Zennamo and T. Zhao and T. G. Zhao and B. Zhou and C. Zhou and J. Zhu and M. Zielinski and D. Zieminska and L. Zivkovic and S. Zucchelli},
journal= {arXiv preprint arXiv:1207.1069},
year = {2015}
}
备注
30 pages and 6 figures, published in Phys. Rev. D