6 papers · 1 filter
CKM Sides: Theory
Benjamin Grinstein
We review the theory of the determination of the CKM elements Vcb and Vub. Particular attention is paid to the determination of Vcb through inclusive semileptonic B decays to charm…
SU(3) Decay Amplitudes of Pentaquarks into Decuplet Baryons
Benjamin Grinstein, Mikhail A. Savrov
Evidence for the existence of exotic, pentaquark baryons was first found in the invariant mass spectrum of a baryon-meson pair, with the baryon in the octet of flavor SU(3). Exotic…
Explicit Quark-Hadron Duality Violations in B-Meson Decays
Benjamin Grinstein, Michael Savrov
Duality is not violated at order Delta/M once j=3/2 and j=1/2+ states are properly accounted for.
An Introduction to Heavy Mesons
Benjamin Grinstein
Introductory lectures (delivered at the VI Mexican School of Particles and Fields) on heavy quarks and heavy quark effective field theory. Applications to inclusive semileptonic de…
Model-Independent Determinations of B -> D l nu , D* l nu Form Factors
C. Glenn Boyd, Benjamin Grinstein, Richard F. Lebed
We present nonperturbative, model-independent parametrizations of the individual QCD form factors relevant to B -> D* l nu and B -> D l nu decays. These results follow from dispers…
Exact Heavy to Light Meson Form Factors in the Combined Heavy Quark, Large and Chiral Limits
Benjamin Grinstein, Paul F. Mende
We demonstrate that the form factors of local operators between a heavy meson state (like the~) and a light pseudoscalar state (like the pion) are given exactly by a single pole…