A 1993 LOOK AT THE LOWER-BOUND ON THE TOP-QUARK MASS FROM CP VIOLATION

Authors
Citation
Aj. Buras, A 1993 LOOK AT THE LOWER-BOUND ON THE TOP-QUARK MASS FROM CP VIOLATION, Physics letters. Section B, 317(3), 1993, pp. 449-453
Citations number
32
Categorie Soggetti
Physics
Journal title
ISSN journal
03702693
Volume
317
Issue
3
Year of publication
1993
Pages
449 - 453
Database
ISI
SICI code
0370-2693(1993)317:3<449:A1LATL>2.0.ZU;2-P
Abstract
We point out that the lower bound on m(t) from the CP violation parame ter epsilon(K) has increased considerably. Using Wolfenstein parametri zation of the CKM matrix we derive an analytic expression for this bou nd as a function of \V(cb)\, \V(ub)/V(cb\ and the non-perturbative par ameter B(K). For B(K) less-than-or-equal-to 0.80, \V(cb)\ less-than-or -equal-to 0.040 and \V(ub)/V(cb)\ less-than-or-equal-to 0.10 we find m (t) > 130 GeV. However, for B(K) less-than-or-equal-to 0.70, \V(cb)\ l ess-than-or-equal-to 0.038 and \V(ub)/V(cb)\ less-than-or-equal-to 0.0 8 the bound is raised to m(t) > 205 GeV. The lower bound on m(t) from B0-B0BAR mixing is also reconsidered.