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University of Florida, Gainesville, Florida 32611, USA.
Phys Rev Lett. 2005 Jul 29;95(5):051801. doi: 10.1103/PhysRevLett.95.051801. Epub 2005 Jul 25.
We present a new search for H0V production, where H0 is a scalar Higgs boson decaying into bb with branching ratio beta, and V is a Z0 boson decaying into e+e-, mu+mu-, or nunu. This search is then combined with previous searches for H0V where V is a W+/- boson or a hadronically decaying Z0. The data sample consists of 106 +/- 4 pb(-1) of pp collisions at square root of s = 1.8 TeV accumulated by the Collider Detector at Fermilab. Observing no evidence of a signal, we set 95% Bayesian credibility level upper limits on sigma(pp --> H0V) x beta. For H0 masses of 90, 110, and 130 GeV/c2, the limits are 7.8, 7.2, and 6.6 pb, respectively.
我们展示了一项对H0V产生过程的新搜索,其中H0是一个衰变为bb且分支比为β的标量希格斯玻色子,V是一个衰变为e+e-、μ+μ-或νν的Z0玻色子。然后,该搜索与之前对H0V(其中V是W+/-玻色子或强子衰变的Z0)的搜索相结合。数据样本由费米实验室对撞机探测器在质心能量√s = 1.8 TeV时积累的106±4 pb-1的质子-质子碰撞组成。由于未观测到信号迹象,我们对σ(pp→H0V)×β设置了95%贝叶斯可信度水平上限。对于质量为90、110和130 GeV/c2的H0,其上限分别为7.8、7.2和6.6 pb。