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Present and Future in Semileptonic B Decays
Christian W. Bauer
In this talk I review the status of our ability to extract the CKM matrix elements |Vub| and |Vcb| from semileptonic decays. I will review both exclusive and inclusive methods and…
Soft-Collinear Factorization in Effective Field Theory
Christian W. Bauer, Dan Pirjol, Iain W. Stewart
The factorization of soft and ultrasoft gluons from collinear particles is shown at the level of operators in an effective field theory. Exclusive hadronic factorization and inclus…
Invariant Operators in Collinear Effective Theory
Christian W. Bauer, Iain W. Stewart
We consider processes which produce final state hadrons whose energy is much greater than their mass. In this limit interactions involving collinear fermions and gluons are constra…
Precision determination of |V_{ub}| from inclusive decays
Christian W. Bauer, Zoltan Ligeti, Michael Luke
We propose determining |V_{ub}| from inclusive semileptonic B decay using combined cuts on the leptonic and hadronic invariant masses to eliminate the b->c background. Compared to…
Resumming the color-octet contribution to radiative Upsilon decay
Christian W. Bauer, Cheng-Wei Chiang, Sean Fleming +2
At the upper endpoint of the photon energy spectrum in Upsilon -> X gamma, the standard NRQCD power counting breaks down and the OPE gives rise to color-octet structure functions.…
Light-cone distribution functions for B decays at subleading order in 1/mb
Christian W. Bauer, Michael Luke, Thomas Mannel
We construct the higher twist structure functions that describe inclusive b hadron decays in regions of phase space where the hadronic decay products carry high energy but have low…