Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/320596
Type: Artigo de Periódico
Title: Bounds On Neutrino-scalar Yukawa Coupling
Author: Pasquini
PS; Peres
OLG
Abstract: General neutrino-scalar couplings appear in many extensions of the Standard Model. We can probe these neutrino-scalar couplings by a leptonic decay of mesons and from a heavy neutrino search. Our analysis improves the present limits to vertical bar g(e)vertical bar(2) < 1.9 x 10(-6) and vertical bar g(mu)vertical bar(2) < 1.9 x 10(-7) at 90% C.L. for massless scalars. For massive scalars, we found for the first time the constraints for g(alpha)(2) couplings to be 10(-6) - 10(-1), respectively, for scalar masses between up 100 MeV, and we have no limits for masses above 300 MeV.
Subject: Standard Model
Decay
Physics
Masses
Editor: AMER PHYSICAL SOC
Rights: fechado
Identifier DOI: 10.1103/PhysRevD.93.053007
Address: http://journals.aps.org/prd/abstract/10.1103/PhysRevD.93.053007
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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