Add to ORKGWe use QCD sum rules to compute matrix elements of the Delta B=2 operators appearing in the heavy-quark expansion of the width difference of the B_s mass eigenstates. Our analysis includes the leading-order operators Q and Q_S, as well as the subleading operators R_2 and R_3, which appear at next-to-leading order in the 1/m_b expansion. We conclude that the violation of the factorization approximation for these matrix elements due to non-perturbative vacuum condensates is as low as 1-2%
We calculate the bag parameters for neutral $B$-meson mixing in and beyond the Standard Model, in fu...
We present a lattice QCD computation of the b-quark mass, the B and B_s decay constants, the B-mixin...
We consider two-loop QCD corrections to the element ${\Gamma}_{12}^q$ of the decay matrix in B$_{q}$...
Abstract We consider the effects of a non-vanishing strange-quark mass in the determination of the f...
We consider the effects of a non-vanishing strange-quark mass in the determination of the full basis...
In this talk I report on a recent sum rule calculation of the bag parameter for B Bbar mixing. We sh...
We use QCD sum rules to compute the matrix elements of the ΔB=2 operators appearing in the heavy-qua...
The mixing of $B_{s/d}$ and $\overline{B}_{s/d}$ mesons constitutes a FCNC process and is therefore...
We review the status of mixing of neutral B-mesons, including a discussion of the current precision ...
We discuss the QCD sum rule calculation of the heavy-quark effective theory parameters, λE and λH , ...
In the heavy quark expansion (HQE) of the total decay rates of $B_s$ and $D_s^+$ mesons non-perturba...
We review the status of mixing of neutral B-mesons, including a discussion of the current precision ...
The accuracy of the vacuum saturation hypothesis is discussed using the examples of vacuum expectati...
We study $SU(3)$-breaking effects in the neutral $B_{d}-\overline{B}_{d}$ and $B_{s}-\overline{B}_{s...
Standard Model contributions to neutral B meson mixing begin at the one loop level where they are fu...
We calculate the bag parameters for neutral $B$-meson mixing in and beyond the Standard Model, in fu...
We present a lattice QCD computation of the b-quark mass, the B and B_s decay constants, the B-mixin...
We consider two-loop QCD corrections to the element ${\Gamma}_{12}^q$ of the decay matrix in B$_{q}$...
Abstract We consider the effects of a non-vanishing strange-quark mass in the determination of the f...
We consider the effects of a non-vanishing strange-quark mass in the determination of the full basis...
In this talk I report on a recent sum rule calculation of the bag parameter for B Bbar mixing. We sh...
We use QCD sum rules to compute the matrix elements of the ΔB=2 operators appearing in the heavy-qua...
The mixing of $B_{s/d}$ and $\overline{B}_{s/d}$ mesons constitutes a FCNC process and is therefore...
We review the status of mixing of neutral B-mesons, including a discussion of the current precision ...
We discuss the QCD sum rule calculation of the heavy-quark effective theory parameters, λE and λH , ...
In the heavy quark expansion (HQE) of the total decay rates of $B_s$ and $D_s^+$ mesons non-perturba...
We review the status of mixing of neutral B-mesons, including a discussion of the current precision ...
The accuracy of the vacuum saturation hypothesis is discussed using the examples of vacuum expectati...
We study $SU(3)$-breaking effects in the neutral $B_{d}-\overline{B}_{d}$ and $B_{s}-\overline{B}_{s...
Standard Model contributions to neutral B meson mixing begin at the one loop level where they are fu...
We calculate the bag parameters for neutral $B$-meson mixing in and beyond the Standard Model, in fu...
We present a lattice QCD computation of the b-quark mass, the B and B_s decay constants, the B-mixin...
We consider two-loop QCD corrections to the element ${\Gamma}_{12}^q$ of the decay matrix in B$_{q}$...