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相关论文: CKM matrix fits including constraints on New Physi…

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Recent measurements in the charm sector are reviewed, concentrating on results which are sensitive to New Physics effects. The scope of the presentation includes D0-D0bar mixing searches, a CPT / Lorentz invariance study, and a range of…

高能物理 - 实验 · 物理学 2008-11-26 B. D. Yabsley

In many extensions of the standard model, new physics is possible to contribute significantly to B^0_s-\bar{B}^0_s mixing. We show that the effect of new physics, both its phase information and its magnitude, can be isolated from…

高能物理 - 唯象学 · 物理学 2011-09-13 Zhi-zhong Xing

The implications of the most recent experimental results in the B and K meson systems on the CKM paradigm are investigated by means of a global fit to the theoretical predictions of the Standard Model. We advocate the frequentist approach…

高能物理 - 唯象学 · 物理学 2007-05-23 Sandrine Laplace

An analysis of the CKM matrix parameters within the {\it R}fit approach is presented using updated input values with special emphasis on the recent $\sin{2\beta}$ measurements from BABAR and Belle. The QCD Factorisation Approach describing…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Höcker , H. Lacker , S. Laplace , F. Le Diberder

I review recent progresses in heavy quarks physics on the lattice. I focus on decay constants and form factors relevant for the extraction of CKM matrix elements from experimental data. B-\bar{B} mixing is also discussed. In the last part…

高能物理 - 格点 · 物理学 2009-01-06 Michele Della Morte

The B factories were constructed with a very specific purpose in mind: to test the Cabibbo-Kobayashi-Maskawa description of quark mixing and CP violation in the Standard Model of particle physics. The goals of testing this part of the…

高能物理 - 实验 · 物理学 2012-02-06 Adrian John Bevan

Recent experimental data on several observables in semileptonic $B$-meson decays are found to be in tension with the corresponding Standard Model predictions. Most of these deviations are related to $b \to c$ and $b \to s$ flavour changing…

高能物理 - 唯象学 · 物理学 2020-07-27 Aleksey V. Rusov

We present the update of the Unitarity Triangle (UT) analysis within the Standard Model (SM) and beyond. Within the SM, combining the direct measurements on sides and angles, the UT turns out to be overconstraint in a consistent way,…

高能物理 - 唯象学 · 物理学 2010-02-25 Cecilia Tarantino

A global fit to quark flavour-physics data disfavours the Standard Model with 3.6 standard deviations and points towards new CP-violating physics in meson-antimeson mixing amplitudes. Tevatron data call for a new Bs-Bs-bar mixing phase and…

高能物理 - 唯象学 · 物理学 2011-07-05 Ulrich Nierste

Combining the recently available experimental evidence of D-Dbar mixing, we extract model-independent information on the mixing amplitude and on its CP-violating phase. Using this information, we present new constraints on the flavour…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Ciuchini , E. Franco , D. Guadagnoli , V. Lubicz , M. Pierini , V. Porretti , L. Silvestrini

$B$ decays proceeding via $b\to c\ell\nu$ transitions with $\ell=e$ or $\mu$ are tree-level processes in the Standard Model. They are used to measure the CKM element $V_{cb}$, as such forming an important ingredient in the determination of…

高能物理 - 唯象学 · 物理学 2019-01-30 Martin Jung , David M. Straub

In the last decade, huge progress in experimentally measuring and theoretically understanding flavor physics has been achieved. In particular, the accuracy in the determination of the CKM elements has been greatly improved, and a large…

高能物理 - 唯象学 · 物理学 2015-05-18 Gino Isidori , Yosef Nir , Gilad Perez

In this decade, there are huge efforts to explore B-meson decays, which offer interesting probes to test the quark-flavour structure of the Standard Model and to search for signals of new physics. Exciting new perspectives for these studies…

高能物理 - 唯象学 · 物理学 2008-01-25 Robert Fleischer

Using primarily experimental inputs for S(B -> psi Ks), Delta M_Bs, Delta M_Bd, BR(B -> tau nu) and epsilon_K along with necessary inputs from the lattice, we find that the measured value of sin(2 beta) is smaller than expectations of the…

高能物理 - 唯象学 · 物理学 2011-06-27 E. Lunghi , A. Soni

We emphasize the power of correlations between flavour observables in the search for New Physics and identify a number of correlations that could allow to discover New Physics even if it would appear at the level of 20% of the Standard…

高能物理 - 唯象学 · 物理学 2013-10-01 Andrzej J. Buras

The ability of present and future experiments to test the Standard Model in the $B$ meson sector is described. We examine the loop effects of new interactions in flavor changing neutral current $B$ decays and in $Z\to b\bar b$,…

高能物理 - 唯象学 · 物理学 2007-05-23 J. L. Hewett

The first part of this talk reviews recent developments in flavor physics that can be made without detailed understanding of hadronic physics, driven by the data. The error of sin(2beta) has shrunk below 5%, and the measurements of alpha…

高能物理 - 格点 · 物理学 2014-11-17 Zoltan Ligeti

This letter gathers a selection of Standard Model predictions issued from the metrology of the CKM parameters performed by the CKMfitter group. The selection includes purely leptonic decays of neutral and charged B, D and K mesons. In the…

We re-consider recent measures of $R_{K}$ and $R_{K^*}$, now compatible with the Standard Model expectations, as well as the results for the process $\text{BR}(B_s \rightarrow \mu^+ \mu^-)$ alongside earlier determinations of…

The CDF experiment at the Tevatron $p\bar{p}$ collider has pioneered and established the role of hadron collisions in exploring flavor physics through a broad program that is now at its full maturity. We report new results sensitive to…

高能物理 - 实验 · 物理学 2012-07-31 Sabato Leo