English
Related papers

Related papers: CKM2010 Working Group II Summary

200 papers

In the last ten years there has been great progress in calculations of decays of $B$ and $D$ mesons, and baryons containing a heavy $b$ or $c$ quark. One propelling factor has been the measurement of several anomalies in $b\to s$ and $b\to…

High Energy Physics - Phenomenology · Physics 2026-02-13 Aoife Bharucha

We summarize the current status of the determination of the CKM matrix elements |V_ud| and |V_us|, which is at the precision frontier of CKM phenomenology. We also review recent progress on the study of charm (semi)leptonic decays, and the…

High Energy Physics - Phenomenology · Physics 2017-05-18 Takashi Kaneko , Xiao-Rui Lyu , Arantza Oyanguren

The magnitudes of the CKM matrix elements $V_{td}$, $V_{ts}$, and $V_{tb}$ are determined for the first time without any assumptions of unitarity. The implications for the unitarity of the CKM matrix as a whole are discussed.

High Energy Physics - Phenomenology · Physics 2007-05-23 John Swain , Lucas Taylor

In this talk I review the status of our ability to extract the CKM matrix elements |Vub| and |Vcb| from semileptonic decays. I will review both exclusive and inclusive methods and put a strong emphasis on how to ensure keeping the…

High Energy Physics - Phenomenology · Physics 2009-11-07 Christian W. Bauer

We review the present status of the CKM matrix and we offer some visions of its future. After a brief presentation of the theoretical framework for weak decays we discuss the following topics: i) CKM matrix from tree level decays, ii)…

High Energy Physics - Phenomenology · Physics 2007-05-23 Andrzej J. Buras

We report a new measurement of the CKM parameter V_ub made with a sample of 9.7 million B B-bar events collected with the CLEO II detector. Using Heavy Quark theory, we combine the observed yield of leptons from semileptonic B decay in the…

High Energy Physics - Experiment · Physics 2010-04-08 A. Bornheim , CLEO Collaboration

We review the current status of determinations of the b-quark mass, m_b. We describe the theoretical tools required for determining m_b, with particular emphasis on effective field theories both in the continuum and on the lattice. We…

High Energy Physics - Phenomenology · Physics 2008-11-26 Aida X. El-Khadra , Michael Luke

It has been proposed to determine the CKM matrix element |V_ub| in a model-independent way from a combination of rare and semileptonic B and D decays near the zero recoil point. An essential ingredient in such a determination is a heavy…

High Energy Physics - Phenomenology · Physics 2011-01-27 Benjamin Grinstein , Dan Pirjol

In order to extract some information on the CKM matrix element |Vcb|, we have to determine form factors in B decays. For this, we show that it is relevant to consider the non-forward amplitude between the heavy-light B and D mesons within…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Jugeau

Some recent Babar results on semileptonic decays are presented. They focus on the determination of the CKM matrix elements |V_{ub}| and |V_{cb}| in inclusive and exclusive b --> u l nu and b--> c l nu decays, and on form factors measurement…

High Energy Physics - Experiment · Physics 2009-04-02 Justine Serrano

I discuss some key issues covered at the Conference including physics goals, current results on CKM angles, rare decays, status of $|V_{cb}|$ and $|V_{ub}|$, CKM fits and progress on hardware.

High Energy Physics - Phenomenology · Physics 2014-11-17 Sheldon Stone

The status of b-bbar and c-cbar calculations, numerical and analytic, are reviewed. The extraction of alpha_s and quark masses from spectrum calculations is discussed. The NRQCD and Improved Heavy Wilson formulations of heavy quarks are…

High Energy Physics - Lattice · Physics 2009-10-28 John Sloan

The structure of the Cabibbo-Kobayashi-Maskawa (CKM) matrix is analyzed from the standpoint of a composite model. A model is constructed with three families of quarks, by taking tensor products of sufficient numbers of spin-1/2…

High Energy Physics - Phenomenology · Physics 2009-10-22 Jonathan L. Rosner , Mihir P. Worah

We report studies of semileptonic decays, B --> X_c l nu, based on a sample of 88 million BB events recorded with the BABAR detector. We have measured four moments of the electron energy distribution and four moments of the hadronic mass…

High Energy Physics - Experiment · Physics 2017-08-23 Vera G. Luth

The combination of precise experimental measurements and theoretical predictions allows to extract Cabibbo-Kobayashi-Maskawa (CKM) matrix elements or constrain flavor changing processes in the standard model. Focusing at theoretical…

High Energy Physics - Phenomenology · Physics 2024-09-05 Oliver Witzel

We summarize selected up-to-date results related to semileptonic $B$ meson decays, namely results on the exclusive determination of the parameter $|V_{cb}|$ of the CKM matrix, on the inclusive determination of $|V_{ub}|$, and on…

High Energy Physics - Phenomenology · Physics 2018-12-04 Giulia Ricciardi

Recent experimental and theoretical results on kaon semileptonic decays have significantly improved the determination of the CKM matrix element V_us. After briefly summarizing the impact of the new experimental determinations, I will…

High Energy Physics - Phenomenology · Physics 2007-05-23 Vittorio Lubicz

Recent progress on QCD sum rule determinations of the light and heavy quark masses is reported. In the light quark sector a major breakthrough has been made recently in connection with the historical systematic uncertainties due to a lack…

High Energy Physics - Phenomenology · Physics 2015-05-27 C. A. Dominguez

Using the most recent determinations of several theoretical and experimental parameters, we update the Unitarity Triangle analysis in the Standard Model. The basic experimental constraints come from the measurements of epsilon_k, Vub/Vcb…

High Energy Physics - Phenomenology · Physics 2007-05-23 UTfit Collaboration , M. Bona , M. Ciuchini , E. Franco , V. Lubicz , G. Martinelli , F. Parodi , M. Pierini , P. Roudeau , C. Schiavi , L. Silvestrini , A. Stocchi

Concise variable transformations between the four angles of the CKM matrix in the standard representation advocated by the Particle Data Group and the angles of the unitarity triangles are derived. The behavior of these transformations in…

High Energy Physics - Phenomenology · Physics 2008-11-26 Richard F. Lebed