English

Theory overview of tree-level $B$ decays

High Energy Physics - Phenomenology 2017-11-10 v2 High Energy Physics - Experiment
Authors: Fulvia De Fazio
View on arXiv ↗ PDF ↗

Abstract

I describe the theoretical progress in the study of semileptonic tree-level B decays, and its interplay with recent experimental results. In particular, I focus on two anomalies: the ratios R(D(∗))=B(B→D(∗)τνˉτ)B(B→D(∗)ℓνˉℓ)R(D^{(*)})=\displaystyle\frac{{\cal B}(B \to D^{(*)} \tau \bar \nu_\tau)}{{\cal B}(B \to D^{(*)} \ell \bar \nu_\ell)} and the inclusive versus exclusive determination of ∣Vcb∣|V_{cb}|. I review a few explanations proposed for such anomalies, and discuss tests to shed light on their origin.

Keywords

heavy meson decays rare decays semileptonic b meson decays

Cite

@article{arxiv.1710.10017,
  title  = {Theory overview of tree-level $B$ decays},
  author = {Fulvia De Fazio},
  journal= {arXiv preprint arXiv:1710.10017},
  year   = {2017}
}

Comments

LaTex, 9 pages, 6 figures. Invited talk at "The European Physical Society Conference on High Energy Physics - EPS-HEP 2017" (5 - 12 July 2017, Venice, Italy). References added

Related papers

View all related →
High Energy Physics - Phenomenology · Physics
Theory overview of semileptonic $B$ decays
Olcyr Sumensari
2018-08-20
High Energy Physics - Phenomenology · Physics
Semitauonic B Decay Anomaly
E. C. F. S. Fortes, Shmuel Nussinov
2016-02-09
High Energy Physics - Experiment · Physics
Recent Results in Semileptonic B Decays With BaBar
P. M. Hamilton
2023-03-03
High Energy Physics - Experiment · Physics
Semitauonic B decays at Belle/Belle II
Karol Adamczyk
2019-01-28
High Energy Physics - Phenomenology · Physics
Exclusive weak B decays involving $\tau$ lepton in the relativistic quark model
R. N. Faustov, V. O. Galkin
2013-04-12
High Energy Physics - Experiment · Physics
$\bar{B} \rightarrow D^{(*)} \tau^- \bar{\nu}_\tau$ and Related Tauonic Topics at Belle
S. Hirose
2019-08-13
High Energy Physics - Phenomenology · Physics
Probing Lepton Universality with (Semi)-Leptonic B decays
Giovanni Banelli, Robert Fleischer, Ruben Jaarsma, Gilberto Tetlalmatzi-Xolocotzi
2018-12-14
High Energy Physics - Phenomenology · Physics
Study of semileptonic $\bar{B}^* \to P \ell \bar{\nu}_\ell$ decays
Qin Chang, Jie Zhu, Xiao-Lin Wang, Jun-Feng Sun +1
2016-07-01
High Energy Physics - Phenomenology · Physics
Effects of a charged Higgs boson in $B \rightarrow D^{(*)} \tau \nu$ decays
Alejandro Celis
2013-09-26
High Energy Physics - Phenomenology · Physics
Angular analysis of $\bar{B}\to D_2^*(\to D \pi)\ell \bar{\nu}$ decay and new physics
Rusa Mandal
2020-02-26
High Energy Physics - Experiment · Physics
Semileptonic B Decays
Vera G. Luth
2012-10-02
High Energy Physics - Phenomenology · Physics
Correlating new physics signals in $B \to D^{(*)} \tau \nu_{\tau}$ with $B \to \tau \nu_{\tau}$
Soumitra Nandi, Sunando K. Patra, Amarjit Soni
2016-11-15
High Energy Physics - Phenomenology · Physics
$B_c \to D^{(*)}\tau \bar \nu_\tau$ processes in an effective field theory approach
Anupama Bhol, Suchismita Sahoo, Soram Robertson Singh
2021-06-14
High Energy Physics - Phenomenology · Physics
Scrutinizing $\bar B \to D^*(D \pi) \ell^- \bar \nu_\ell$ and $\bar B \to D^*(D \gamma) \ell^- \bar \nu_\ell$ in search of new physics footprints
Pietro Colangelo, Fulvia De Fazio
2018-06-19
High Energy Physics - Phenomenology · Physics
Study of Anomalies in Exclusive Semileptonic B Decays
Vincenzo Afferrante, Guido Martinelli
2018-08-27
High Energy Physics - Phenomenology · Physics
Revisiting the new-physics interpretation of the $b\to c\tau\nu$ data
Rui-Xiang Shi, Li-Sheng Geng, Benjamín Grinstein, Sebastian Jäger +1
2019-12-24
High Energy Physics - Phenomenology · Physics
Semileptonic decays of $B^{(*)}$, $D^{(*)}$ into ${\nu} l$ and pseudoscalar or vector mesons
L. R. Dai, X. Zhang, E. Oset
2018-08-15
High Energy Physics - Phenomenology · Physics
Heavy Quark and Chiral Symmetry Predictions for Semileptonic Decays B->D(D*),pi,l,nu
H-Y Cheng, C-Y Cheung, W. Dimm, G-L Lin +3
2009-10-22
High Energy Physics - Phenomenology · Physics
Probing new physics in $B_s \to (K,K^*)\tau \nu$ and $B \to \pi \tau \nu$ decays
N Rajeev, Rupak Dutta
2019-08-20
High Energy Physics - Phenomenology · Physics
Combined analysis of semileptonic $B$ decays to $D$ and $D^*$: $R(D^{(*)})$, $|V_{cb}|$, and new physics
Florian U. Bernlochner, Zoltan Ligeti, Michele Papucci, Dean J. Robinson
2019-01-21
High Energy Physics - Phenomenology · Physics
Model independent analysis of $ B^* \to P \ell \bar{\nu}_\ell$ decay processes
Atasi Ray, Suchismita Sahoo, Rukmani Mohanta
2019-09-04
High Energy Physics - Phenomenology · Physics
Delving into new physics in semileptonic $b \to c \tau \bar \nu$ transitions
Aishwarya Bhatta, Rukmani Mohanta
2025-07-16
High Energy Physics - Phenomenology · Physics
$\bar B\to D\tau\bar \nu_\tau$ vs. $\bar B\to D\mu\bar \nu_\mu$
Damir Becirevic, Nejc Kosnik, Andrey Tayduganov
2015-06-05
High Energy Physics - Experiment · Physics
Measurement of the branching ratio of $\bar{B}^0 \rightarrow D^{*+} \tau^- \bar{\nu}_{\tau}$ relative to $\bar{B}^0 \rightarrow D^{*+} \ell^- \bar{\nu}_{\ell}$ decays with a semileptonic tagging method
Y. Sato, T. Iijima, K. Adamczyk, H. Aihara +169
2016-12-14
High Energy Physics - Phenomenology · Physics
$b \to c$ semileptonic sum rule: Current status and prospects
Motoi Endo, Syuhei Iguro, Satoshi Mishima, Ryoutaro Watanabe
2026-01-16
R2 v1 2026-06-22T22:27:21.670Z