Quarkonium production in SM Higgs decays

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We investigate the SM Higgs decays into heavy quarkonia J/ψand Υin both color-singlet and color-octet mechanisms. It is found that in J/ψproduction the contribution through color-octet processes overwhelm that in color-singlet processes all the intermediate region M_Z<M_{H^0}<2 M_w and the fraction ratio is comparatively large, but in Υproduction the contribution through color-octet mechanism is negligible.
9 pages, LaTex, 4 postscript figures. To appear in Journal of Physics G

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/185284

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/9805431
 http://arxiv.org/abs/hep-ph/9805431
 J.Phys.G24:1219-1226,1998
 doi:10.1088/0954-3899/24/7/004

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arXiv