Right-handed Currents Searches and Parity Doubling

Abstract

The extraction of right-handed currents, beyond the Standard Model, faces theoretical challenges from long-distance contributions. We show that these effects can be controlled by combining, for example, studies of $B\to V(1^{-})\gamma$ and $B\to A(1^{+})\gamma$ observables. The sum of the long-distance contributions can be extracted without compromise, and the individual pieces follow from a ratio predicted by theory. This leads to significant reduction in the uncertainty of long-distance contributions. The ideas extend to charm decays and the low $q^2$-region of $B\to V\ell \bar{\ell }$, and open the prospect of checking input affecting the angular $B\to K^{\ast }\mu \mu$-anomaly.

arXiv commentQCD-Moriond 2018 proceedings, 6pp + 1fig

References in corpus (17)

• Patterns of New Physics in $b\to s{\ell }^{+}{\ell }^{-}$ transitions in the light of recent data
• Probing New Physics Via the Transverse Amplitudes of B0-> K*0(-> K- pi+) l+l- at Large Recoil
• B->V gamma Beyond QCD Factorisation
• Mixing-induced CP Asymmetries in Radiative B Decays in and beyond the Standard Model
• On transverse asymmetries in B --> K* l+l-
• Calculation of Long-Distance Effects in Exclusive Weak Radiative Decays of B-Mesons
• Generalised helicity formalism, higher moments and the $B\to K_{J_K}(\to K\pi ){\bar{\ell }}_1{\ell }_2$ angular distributions
• Evidence of effective axial U(1) symmetry restoration at high temperature QCD
• The photon polarization in B -> X gamma in the standard model
• Exploiting the width difference in B_s -> phi gamma
• Hadronic and New Physics Contributions to $b\to s$ Transitions
• Time-dependent CP Asymmetry in B->K* gamma as a (Quasi) Null Test of the Standard Model
• Parity doubling in particle physics
• Isoscalar mesons upon unbreaking of chiral symmetry
• Approximate degeneracy of $J=1$ spatial correlators in high temperature QCD
• Time-dependent CP Asymmetries in $B^0\to K_S^0{\rho }^0\gamma$ Decays
• First observations of the rare decays $B^{+}->K^{+}{\pi }^{+}{\pi }^{-}{\mu }^{+}{\mu }^{-}$ and $B^{+}->\varphi K^{+}{\mu }^{+}{\mu }^{-}$