$|V_{cb}|$ and $\gamma$ from $B$-mixing -- Addendum to "$B_s$ mixing observables and $|V_{td}/V_{ts}|$ from sum rules"

Daniel King; Matthew Kirk; Alexander Lenz; Thomas Rauh

doi:10.1007/JHEP03(2020)112

$|V_{cb}|$ and $\gamma$ from $B$-mixing -- Addendum to "$B_s$ mixing observables and $|V_{td}/V_{ts}|$ from sum rules"

High Energy Physics - Phenomenology 2020-03-20 v2 High Energy Physics - Experiment

Authors: Daniel King , Matthew Kirk , Alexander Lenz , Thomas Rauh

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Abstract

In this addendum to " $B_s$ mixing observables and $|V_{td}/V_{ts}|$ from sum rules" \cite{King:2019lal} we study the impact of the recent improvements in the theoretical precision of $B$ meson mixing onto CKM unitarity fits. Our key results are the most precise determination of the angle $\gamma = \left(63.4\pm0.9\right)^\circ$ in the unitarity triangle and a new value for the CKM element $|V_{cb}|=(41.6\pm0.7)\cdot10^{-3}$ .

Keywords

ckm unitarity b meson mixing v_cb unitarity triangle gamma angle sum rules

Cite

@article{arxiv.1911.07856,
  title  = {$|V_{cb}|$ and $\gamma$ from $B$-mixing -- Addendum to "$B_s$ mixing observables and $|V_{td}/V_{ts}|$ from sum rules"},
  author = {Daniel King and Matthew Kirk and Alexander Lenz and Thomas Rauh},
  journal= {arXiv preprint arXiv:1911.07856},
  year   = {2020}
}

Comments

7 pages, 4 figures; Journal version: added description of fit procedure

$|V_{cb}|$ and $\gamma$ from $B$-mixing -- Addendum to "$B_s$ mixing observables and $|V_{td}/V_{ts}|$ from sum rules"

Abstract

Keywords

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