Relativistic theory of the decay of upsilon into Higgs boson + photon

..Higgs boson+photon. It is applied to upsilon decay into a Higgs boson of mass in the range 7--9 GeV. Relativistic effects are accounted for by employing Bethe-Salpeter equations to determine the UPSILONbb-bar and Hbb-bar vertex functions. The decay rate is controlled by two amplitudes that interfere destructively. It is found that the ratio GAMMA(UPSILON..-->..H..gamma..)/GAMMA(UPSILON..--> mu../sup +/..mu../sup -/) is substantially smaller than that of nonrelativistic calculations. -->

ISSN:	0556-2821
Přístupová URL adresa:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c5df9d4a0fadfac949c699c439b304d https://pubmed.ncbi.nlm.nih.gov/9959007
Rights:	CLOSED
Přírůstkové číslo:	edsair.doi.dedup.....1c5df9d4a0fadfac949c699c439b304d
Autor:	Per Osland, Tai Tsun Wu, Göran Fäldt
Rok vydání:	1988
Předmět:	Physics Antiparticle Particle physics Muon Meson Branching fraction Astrophysics::High Energy Astrophysical Phenomena High Energy Physics::Phenomenology Higgs boson High Energy Physics::Experiment Elementary particle Boson Lepton
Zdroj:	Physical review. D, Particles and fields. 38(1)
ISSN:	0556-2821
Popis:	We present a technique for calculating the decay rate for quarkonium..-->..Higgs boson+photon. It is applied to upsilon decay into a Higgs boson of mass in the range 7--9 GeV. Relativistic effects are accounted for by employing Bethe-Salpeter equations to determine the UPSILONbb-bar and Hbb-bar vertex functions. The decay rate is controlled by two amplitudes that interfere destructively. It is found that the ratio GAMMA(UPSILON..-->..H..gamma..)/GAMMA(UPSILON..--> mu../sup +/..mu../sup -/) is substantially smaller than that of nonrelativistic calculations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c5df9d4a0fadfac949c699c439b304d https://pubmed.ncbi.nlm.nih.gov/9959007 Zobrazit plný text záznamu