Artículos de revistas
Bounds On Neutrino-scalar Yukawa Coupling
Registro en:
2470-0029
Physical Review D. AMER PHYSICAL SOC, n. 93, n. 5, p. .
2470-0010
WOS:000371742000003
10.1103/PhysRevD.93.053007
Autor
Pasquini
PS; Peres
OLG
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) 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. 93
FAPESP [2012/16389-1, 2014/05133-1, 2015/16809-9] Instituto de Fisica Corpuscular (CSIC-Universitat de Valencia) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)