Single top quark production as a probe for anomalous moments at hadron colliders.
Single top quark production as a probe for anomalous moments at hadron colliders.
复制标题
单顶夸克的产生作为强子对撞机异常时刻的探测器。
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
T. Rizzo
中科院分区：
文献类型：
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作者：
T. Rizzo
本文考察了强子对撞机上通过核聚变产生的单个顶夸克，作为顶夸克和胶子之间可能的反常色磁和/或色电矩耦合的探针。我们发现，这种通道对这种反常耦合的存在的敏感性远低于通常的通过{italq{bar q}聚变产生的顶夸克对。具有有趣量级的反常耦合对横截面和各种运动分布的贡献基本上被目前计算中的理论不确定性所掩盖。这一结果在费米实验室Tevatron和CERN大型强子对撞机上都是成立的，尽管在更高的能量机上发现了对这个通道中的反常耦合的更高的灵敏度。{版权所有}{1996年美国物理学会。}
Single production of top quarks at hadron colliders via {ital gW} fusion is examined as a probe of possible anomalous chromomagnetic and/or chromoelectric moment type couplings between the top quark and gluons. We find that this channel is far less sensitive to the existence of anomalous couplings of this kind than is the usual production of top quark pairs by {ital gg} or {ital q{bar q}} fusion. The contribution to the cross section and various kinematical distributions from anomalous couplings with interesting magnitudes is essentially hidden by the present theoretical uncertainties in the calculation. This result is found to hold at both the Fermilab Tevatron as well as the CERN LHC, although somewhat greater sensitivity for anomalous couplings in this channel is found at the higher energy machine. {copyright} {ital 1996 The American Physical Society.}