Subleading Power Factorization in $\bar{B}\to X_s{\ell }^{+}{\ell }^{-}$

Abstract

We analyze the factorization to subleading power in the flavor changing neutral current process $\bar{B}\to X_s{\ell }^{+}{\ell }^{-}$. In particular, we compute the so-called resolved contributions and explore the numerical impact on observables. In these contributions the virtual photon couples to light partons instead of connecting directly to the effective weak-interaction vertex. They represent an irreducible uncertainty in the inclusive $\bar{B}\to X_s{\ell }^{+}{\ell }^{-}$ decay which cannot be removed by relaxing the experimentally necessary cuts in the hadronic mass spectrum.

32 pages,18 figures

References in corpus (5)

• Higher Order Power Corrections in Inclusive B Decays
• Long-Distance Dominance of the CP Asymmetry in B->X_{s,d}+gamma Decays
• Radiative and Electroweak Penguin Decays of B Mesons
• Penguins with Charm and Quark-Hadron Duality
• Enhanced Non-local Power Corrections to the B->X_s+gamma Decay Rate

Cited by in corpus (2)

• Looking for $B\to X_s{\ell }^{+}{\ell }^{-}$ in non-minimal Universal Extra Dimensional model
• Rare B, D and K decays, radiative and electroweak penguin decays, including constraints on $V_{td}/V_{ts}$ and ${\epsilon }^{\prime }/\epsilon$: Summary of CKM 2018 working group 3