Indirect constraints on the triple gauge boson couplings from Z -> b(b)over-bar partial width: An update


Autoria(s): Eboli, OJP; Gonzalez-Garcia, M. C.; Novaes, Sérgio Ferraz
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

10/01/2000

Resumo

We update the indirect bounds on anomalous triple gauge couplings coming from the non-universal one-loop contributions to the Z --> <b(b)over bar> width. These bounds, which are independent of the Higgs boson mass, are in agreement with the standard model predictions for the gauge boson self-couplings since the present value of R-b agrees fairly well with the theoretical estimates. Moreover, these indirect constraints on Delta g(1)(Z) and g(5)(Z) are most stringent than the present direct bounds on these quantities, while the indirect limit on lambda(Z) is weaker than the available experimental data.

Formato

1-7

Identificador

http://dx.doi.org/10.1142/S0217732300000025

Modern Physics Letters A. Singapore: World Scientific Publ Co Pte Ltd, v. 15, n. 1, p. 1-7, 2000.

0217-7323

http://hdl.handle.net/11449/22997

10.1142/S0217732300000025

WOS:000085865000001

Idioma(s)

eng

Publicador

World Scientific Publ Co Pte Ltd

Relação

Modern Physics Letters A

Direitos

closedAccess

Tipo

info:eu-repo/semantics/article