KAON 2007: Conference Summary

Isidori, Gino

doi:10.22323/1.046.0064

Cited by 8 publications

(7 citation statements)

References 51 publications

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“…in agreement with the value extracted from K ℓ3 decays, |V us | = 0.2255(19) [34], and leads to the constraint due to the unitarity of the CKM matrix |V ud | 2 + |V us | 2 + |V ub | 2 − 1 = (−3.7 ± 2.0) · 10 −3 .…”

Section: Ri−mom Psupporting

confidence: 86%

Light quark masses and pseudoscalar decay constants fromN_f= 2 lattice QCD with twisted mass fermions

Blossier

Boucaud

Dimopoulos

et al. 2008

J. High Energy Phys.

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We present the results of a lattice QCD calculation of the average up-down and strange quark masses and of the light meson pseudoscalar decay constants with N f = 2 dynamical fermions. The simulation is carried out at a single value of the lattice spacing with the twisted mass fermionic action at maximal twist, which guarantees automatic O(a)-improvement of the physical quantities. Quark masses are renormalized by implementing the non perturbative RI-MOM renormalization procedure. Our results for the light quark masses are m MS ud (2 GeV) = 3.85 ± 0.12 ± 0.40 MeV, m MS s (2 GeV) = 105±3±9 MeV and m s /m ud = 27.3±0.3±1.2. We also obtain f K = 161.7±1.2±3.1 MeV and the ratio f K /f π = 1.227±0.009±0.024. From this ratio, by using the experimental determination of Γ(K → µν µ (γ))/Γ(π → µν µ (γ)) and the average value of |V ud | from nuclear beta decays, we obtain |V us | = 0.2192(5)(45), in agreement with the determination from K l3 decays and the unitarity constraint.

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Section: Ri−mom Psupporting

confidence: 86%

Light quark masses and pseudoscalar decay constants fromN_f= 2 lattice QCD with twisted mass fermions

Blossier

Boucaud

Dimopoulos

et al. 2008

J. High Energy Phys.

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show abstract

“…Also very significant progress has been made in estimating non-perturbative contributions to the charm component [167] and in the determination of the relevant hadronic matrix elements from tree level leading K decays [168]. Reviews of these two decays can be found in [268][269][270][271][272]. On the experimental side seven events of K + → π + νν decay have been observed by E787 and E949 at Brookhaven resulting in [273] Br(K + → π + νν) = (17.…”

Section: 7mentioning

confidence: 99%

Flavour Theory: 2009

Buras¹

2010

Proceedings of European Physical Society Europhysics Conference on High Energy Physics — PoS(EPS-HEP 2009)

158

246

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“…35) Reviews on K → πνν decays can be found in. 36), 37) It should be stressed that this formula is valid for the full class of MFV models and sin 2β determined this way depends only on two measurable branching ratios and on the function P c (X) which is dominated by perturbative contributions and is known with NNLO accuracy. 9), 38) Also the small hadronic contributions are known.…”

Section: )mentioning

confidence: 99%

Testing the CKM Picture of Flavour and CP Violation in Rare K and B Decays and Particle-Antiparticle Mixing

Buras

2009

Progress of Theoretical Physics

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We summarize briefly the CKM picture of flavour and CP violation that governs the models with minimal flavour violation (MFV). We then describe how this framework can be efficiently tested through particle-antiparticle mixing and rare K and B decays. In particular we provide a list of theoretically clean tests that the simplest version of the MFV framework, the constrained MFV hypothesis, has to face in the coming years. Finally we offer a brief look at the most popular SM extensions that go beyond the CKM framework like the general MSSM, Little Higgs model with T-parity and Randall-Sundrum models with bulk fermions.

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KAON 2007: Conference Summary

Cited by 8 publications

References 51 publications

Light quark masses and pseudoscalar decay constants fromN_f= 2 lattice QCD with twisted mass fermions

Light quark masses and pseudoscalar decay constants fromN_f= 2 lattice QCD with twisted mass fermions

Flavour Theory: 2009

Testing the CKM Picture of Flavour and CP Violation in Rare K and B Decays and Particle-Antiparticle Mixing

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KAON 2007: Conference Summary

Cited by 8 publications

References 51 publications

Light quark masses and pseudoscalar decay constants fromNf= 2 lattice QCD with twisted mass fermions

Light quark masses and pseudoscalar decay constants fromNf= 2 lattice QCD with twisted mass fermions

Flavour Theory: 2009

Testing the CKM Picture of Flavour and CP Violation in Rare K and B Decays and Particle-Antiparticle Mixing

Contact Info

Product

Resources

About

Light quark masses and pseudoscalar decay constants fromN_f= 2 lattice QCD with twisted mass fermions

Light quark masses and pseudoscalar decay constants fromN_f= 2 lattice QCD with twisted mass fermions