This decay, which is sensitive to the top-quark mass, has become now particularly interesting as we expect a t-mass greater than 80 GeV. The QCD corrections play a relevant role, enhancing the GIM suppressed vertex: their computation presents many technical difficulties, which have led to different results in the previous literature. We have performed the calculation off-shell, in all gauges, in the leading logarithmic approximation; we confirm the strong enhancement of the QCD corrected branching ratios.
Qcd Corrections To the Weak Radiative Bbar-meson Decay / G., Cella; G., Curci; Ricciardi, Giulia; A., Vicere. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 248:(1990), pp. 181-187. [10.1016/0370-2693(90)90036-6]
Qcd Corrections To the Weak Radiative Bbar-meson Decay
RICCIARDI, GIULIA;
1990
Abstract
This decay, which is sensitive to the top-quark mass, has become now particularly interesting as we expect a t-mass greater than 80 GeV. The QCD corrections play a relevant role, enhancing the GIM suppressed vertex: their computation presents many technical difficulties, which have led to different results in the previous literature. We have performed the calculation off-shell, in all gauges, in the leading logarithmic approximation; we confirm the strong enhancement of the QCD corrected branching ratios.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
