Speaker
Qin Qin
(University of Siegen)
Description
We calculate multi-parton contributions to the inclusive $\bar{B}\to X_d\ell^+\ell^+$ decay, which turn out to be considerable but were never considered before. We also investigate the log-enhanced QED corrections and the resonance effects induced by the up-loop amplitudes, in additional to the charm-loop ones that also appear in the b to s transition. After that, employing the other NNLO QCD, NLO QED and power corrections available in the literature, we give the Standard Model predictions of kinds of observables in $\bar{B}\to X_d\ell^+\ell^+$, including the branching ratio, the forward-backward asymmetry and the CP asymmetry. A preliminary phenomenological update for $\bar{B}\to X_s\ell^+\ell^+$ will also be given.
Authors
Enrico Lunghi
(Indiana University)
Mr
Jack Jenkins
Keri Vos
(Siegen University)
Qin Qin
(University of Siegen)
Tobias Huber
(Uni Siegen)
Tobias Hurth
(CERN)
