Probing Higgs width and top quark Yukawa coupling from tt¯H and tt¯tt¯ productions
نویسندگان
چکیده
منابع مشابه
Higgs-boson decay to four fermions including a single top quark below tt-bar threshold.
The rare decay modes Higgs → four light fermions, and Higgs → single topquark + three light fermions formt < MH < 2mt, are presented, and phenomenologically interpreted. The angular correlation between fermion planes is presented as a test of the spin and intrinsic parity of the Higgs particle. In Higgs decay to single top, two tree-level graphs contribute in the standard model (SM); one couple...
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In 1979 Stockman introduced the SSS* minimax search algorithm that dominates Alpha-Beta in the number of leaf nodes expanded. Further investigation of the algorithm showed that it had three serious drawbacks, which prevented its use by practitioners: it is difficult to understand, it has large memory requirements, and it is slow. This paper presents an alternate formulation of SSS*, in which it...
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We study effects of heavy Higgs bosons on the tt production process at photon linear colliders. The interference patterns between the resonant Higgs-production amplitudes and the continuum QED amplitudes are examined. The patterns tell us not only the CP nature of the Higgs bosons but also the phase of the γγ–Higgs vertex which gives new information about the Higgs couplings to new charged part...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2017
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.95.053004