Erratum:<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi><mml:mo>→</mml:mo><mml:msub><mml:mi>K</mml:mi><mml:mn>1</mml:mn></mml:msub><mml:mi>γ</mml:mi></mml:math>decays in the light-cone QCD sum rules [Phys. Rev. D<b>77</b>, 094023 (2008)]

Hatanaka, Hisaki; Yang, Kwei-Chou

doi:10.1103/physrevd.78.059902

Cited by 55 publications

(112 citation statements)

References 25 publications

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“…where C b→sγ (µ) stems from the absorptive part of b → scc → sγ rescattering which will be neglected here, Y pert and Y LD stand for, respectively, the short-and long-distance contributions from the four quark operators [4], with [5]. Aiming at an evaluation of the semileptonic decays B (s) → Slν l , Sll, we need to confront the hadronic matrix elements S(p)|q 2 γ µ γ 5 b|B (s) (p + q) and S(p)|q 2 σ µν γ 5 q ν b|B (s) (p + q) .…”

Section: The Lcsr For the B (S) → S Form Factorsmentioning

confidence: 99%

B(s)→Stransitions in the light cone sum rules with the chiral current

Sun

Huang

2011

Phys. Rev. D

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Section: The Lcsr For the B (S) → S Form Factorsmentioning

confidence: 99%

B(s)→Stransitions in the light cone sum rules with the chiral current

Sun

Huang

2011

Phys. Rev. D

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“…For other phenomenological studies of (axial-)vector mesons (with emphasis on the mixing between the K 1;A and the K 1;B states), see Refs. [38][39][40][41][42].…”

Section: Homochiral Vectorsmentioning

confidence: 99%

How the axial anomaly controls flavor mixing among mesons

2018

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It is well known that, because of the axial anomaly in QCD, mesons with J P ¼ 0 − are close to SUð3Þ V eigenstates; the η 0 ð958Þ meson is largely a singlet, and the η meson an octet. In contrast, states with J P ¼ 1 − are flavor diagonal; e.g., the ϕð1020Þ is almost puress. Using effective Lagrangians, we show how this generalizes to states with higher spin, assuming that they can be classified according to the unbroken chiral symmetry of G fl ¼ SUð3Þ L × SUð3Þ R . We construct effective Lagrangians from terms invariant under G fl and introduce the concept of hetero-and homochiral multiplets. Because of the axial anomaly, only terms invariant under the Zð3Þ A subgroup of the axial Uð1Þ A enter. For heterochiral multiplets, which begin with that including the η and η 0 ð958Þ, there are Zð3Þ A invariant terms with low mass dimension which cause states to mix according to SUð3Þ V flavor. For homochiral multiplets, which begin with that including the ϕð1020Þ, there are no Zð3Þ A invariant terms with low mass dimension, and so states are diagonal in flavor.In this way, we predict the flavor mixing for the heterochiral multiplet with spin 1 as well as for hetero-and homochiral multiplets with spin 2 and spin 3.

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“…The decay B + → K 1 (1270) + µ + µ − is expected to contribute significantly to the B + → K + π + π − µ + µ − final state and is of particular interest since the K 1 (1270) + is an axial-vector [28]. Figure 7 shows the invariant mass distributions of the signal candidates for both decays as well as the differential branching fraction for the decay B + → K + π + π − µ + µ − .…”

Section: First Observations Of the Decaysmentioning

confidence: 99%

Electroweak penguin decays with di-leptons

Langenbruch¹

2015

Proceedings of the 15th International Conference on B-Physics at Frontier Machines at the University of Edinburgh — PoS(Beauty2

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Electroweak penguin decays proceed via flavour changing neutral currents that, in the Standard Model (SM), are forbidden at the tree-level and only allowed via higher order loop diagrams. New particles beyond the SM could significantly affect these rare processes, altering their predicted branching fractions and angular distributions. Recent results from the LHCb experiment on semileptonic b → s + − processes are reviewed. While most observables show good agreement with SM predictions, an interesting local deviation is observed in an angular observable of the decay B 0 → K * 0 µ + µ − . Recently, also a test of lepton universality using the branching fraction ratio R K = B(B + → K + µ + µ − )/B(B + → K + e + e − ) has also shown an interesting tension with the SM prediction.

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Erratum:B→K1γdecays in the light-cone QCD sum rules [Phys. Rev. D77, 094023 (2008)]

Abstract: We present a detailed study of B → K 1 (1270)γ and B → K 1 (1400)γ decays. Using the light-cone sum rule technique, we calculate the B → K 1A (1 3 P 1 ) and B → K 1B (1 1 P 1 ) tensor form factors, T K 1A

Cited by 55 publications

References 25 publications

B(s)→Stransitions in the light cone sum rules with the chiral current

B(s)→Stransitions in the light cone sum rules with the chiral current

How the axial anomaly controls flavor mixing among mesons

Electroweak penguin decays with di-leptons

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