Experimental status of the CKM matrix

Porter, F. C.

doi:10.1016/j.ppnp.2016.06.003

Cited by 6 publications

(8 citation statements)

References 314 publications

(526 reference statements)

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“…Many CP -violating asymmetries have been measured or searched for in the neutral (and charged) B system, which have established indirect and direct CP violation and strongly supported the validity of the unitarity triangle predictions (for reviews, see Buras, 2005;Amhis et al, 2014;Porter, 2016;Gershon and Gligorov, 2017;Patrignani, 2016). We will illustrate with one especially clean and important case, i.e., the time-dependent asymmetry .303) (A similar formalism applies to B 0 s asymmetries.)…”

Section: Cp Asymmetriesmentioning

confidence: 99%

“…We first briefly survey the magnitudes of the CKM matrix elements. For more detail see, e.g., (Antonelli et al, 2010b;Porter, 2016) and the articles on the CKM matrix, on V ud,s , and on V u,cb in (Patrignani, 2016) (from which we take most of the numerical results).…”

Section: Magnitudes Of the Ckm Matrix Elements And Weak Universalitymentioning

confidence: 99%

“…The J parameter defined in (8.219) is J = 3.0(2)×10 −5 . For more information on the unitarity triangle, see, e.g., (Charles et al, 2005(Charles et al, , 2015Bona et al, 2006;Amhis et al, 2014;Porter, 2016), as well as the websites listed in the bibliography.…”

Section: The Wolfenstein Parametersmentioning

confidence: 99%

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The Standard Model and Beyond

Langacker¹

2017

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This eBook was converted to open access in 2021 through the sponsorship of SCOAP3 licensed under the terms of the creative commons Attribution-NonCommercial 4.0 International License (https://creativecommons.org/licenses/by-nc/4.0/) which permits use, sharing, adaptation distribution and reproduction in any medium or format, as long as you give appropriate credit to the author(s) and the source, provide a link to the creative commons license and indicate if changes were made, this license does not permit the Contribution to be used commercially. Contents Preface xiChapter 1 Notation and Conventions 1.1 PROBLEMS Chapter 2 Review of Perturbative Field Theory 2.1 CREATION AND ANNIHILATION OPERATORS 2.2 LAGRANGIAN FIELD THEORY 2.3 THE HERMITIAN SCALAR FIELD 2.3.1 The Lagrangian and Equations of Motion 2.3.2 The Free Hermitian Scalar Field 2.3.3 The Feynman Rules 2.3.4 Kinematics and the Mandelstam Variables 2.3.5 The Cross Section and Decay Rate Formulae 2.3.6 Loop Effects 2.4 THE COMPLEX SCALAR FIELD 2.4.1 U (1) Phase Symmetry and the Noether Theorem 2.5 ELECTROMAGNETIC AND VECTOR FIELDS 2.5.1 Massive Neutral Vector Field 2.6 ELECTROMAGNETIC INTERACTION OF CHARGED PIONS 2.7 THE DIRAC FIELD 2.7.1 The Free Dirac Field 2.7.2 Dirac Matrices and Spinors 2.8 QED FOR ELECTRONS AND POSITRONS 2.9 SPIN EFFECTS AND SPINOR CALCULATIONS 2.10 THE DISCRETE SYMMETRIES P , C, CP , T , AND CP T 2.11 TWO-COMPONENT NOTATION AND INDEPENDENT FIELDS 2.12 QUANTUM ELECTRODYNAMICS (QED) 2.12.1 Higher-Order Effects 2.12.2 The Running Coupling 2.12.3 Tests of QED 2.12.4 The Role of the Strong Interactions 2.13 OPERATOR DIMENSIONS AND CLASSIFICATION v vi Contents 2.14 MASS AND KINETIC MIXING 2.15 PROBLEMS Chapter 3 Lie Groups, Lie Algebras, and Symmetries 3.1 BASIC CONCEPTS 3.1.1 Groups and Representations 3.1.2 Examples of Lie Groups 3.1.3 More on Representations and Groups 3.2 GLOBAL SYMMETRIES IN FIELD THEORY 3.

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Section: Cp Asymmetriesmentioning

confidence: 99%

Section: Magnitudes Of the Ckm Matrix Elements And Weak Universalitymentioning

confidence: 99%

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The Standard Model and Beyond

Langacker¹

2017

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“…Understanding the observed pattern of fermion masses and mixing remains a fundamental open question in Particle Physics. On the experimental side, there has been great progress and at present the moduli of the Cabibbo Kobayashi Maskawa (CKM) matrix, V CKM , are reasonably well known [1][2][3] with clear evidence that the mixing matrix is non-trivially complex, even if one allows for the presence of New Physics (NP) beyond the SM [4][5][6]. The discovery of the Higgs particle at LHC [7,8] renders specially important the measurement of the Higgs couplings to quarks and charged leptons.…”

Section: Introductionmentioning

confidence: 99%

Vector-like quarks at the origin of light quark masses and mixing

et al. 2017

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We show how a novel fine-tuning problem present in the Standard Model can be solved through the introduction of a Z 6 flavour symmetry, together with three Q = −1/3 quarks, three Q = 2/3 quarks, as well as a complex singlet scalar. The Z 6 symmetry is extended to the additional fields and it is an exact symmetry of the Lagrangian, only softly broken in the scalar potential, in order to avoid the domain-wall problem. Specific examples are given and a phenomenological analysis of the main features of the model is presented. It is shown that even for vector-like quarks with masses accessible at the LHC, one can have realistic quark masses and mixing, while respecting the strict constraints on processes arising from flavour changing neutral currents. The vector-like quark decay channels are also described.

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“…describes the quark-family mixing in charged currents. The experimentally known V [162] has three mixing angles and one complex phase, which leads to CP -violation [14]. In contrast, all tree-level neutral currents remain flavor-diagonal.…”

Section: Abelian Higgs Modelmentioning

confidence: 99%

Building and testing models with extended Higgs sectors

Иванов

2017

Progress in Particle and Nuclear Physics

153

162

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Models with non-minimal Higgs sectors represent a mainstream direction in theoretical exploration of physics opportunities beyond the Standard Model. Extended scalar sectors help alleviate difficulties of the Standard Model and lead to a rich spectrum of characteristic collider signatures and astroparticle consequences. In this review, we introduce the reader to the world of extended Higgs sectors. Not pretending to exhaustively cover the entire body of literature, we walk through a selection of the most popular examples: the two-and multi-Higgs-doublet models, as well as singlet and triplet extensions. We will show how one typically builds models with extended Higgs sectors, describe the main goals and the challenges which arise on the way, and mention some methods to overcome them. We will also describe how such models can be tested, what are the key observables one focuses on, and illustrate the general strategy with a subjective selection of results.

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Experimental status of the CKM matrix

Cited by 6 publications

References 314 publications

The Standard Model and Beyond

The Standard Model and Beyond

Vector-like quarks at the origin of light quark masses and mixing

Building and testing models with extended Higgs sectors

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