Two-body charmed 
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 decays involving a light scalar meson

Liu, Ying; Liu, Xin

doi:10.1103/physrevd.95.016011

Cited by 19 publications

(14 citation statements)

References 95 publications

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“…[55], specifically, the authors studied the annihilation type decay B → D s K and gave the PQCD prediction for a sizable branching ratio B(B 0 → D − s K + ) ∼ 10 −5 , which has already been confirmed by experiments [1,2]. In the past decade, the twobody charmed decays B → DS, D P, DV, D A, DT , where S, P, V, A, T denote the scalar, pseudoscalar, vector, axialvector and tensor mesons, have been studied systematically in [28,30,[58][59][60][61][62] by employing the PQCD approach and most of the predictions are in good agreement with the available experimental data. Therefore, it is interesting and meaningful to analyse the relevant three-body charmed hadronic B meson decays within the same method.…”

Section: Introductionmentioning

confidence: 79%

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Quasi-two-body decays $$B \rightarrow D K^*(892) \rightarrow D K \pi $$ in the perturbative QCD approach

Wang

et al. 2019

Eur. Phys. J. C

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We study the quasi-two-body decays B → DK * (892) → DK π by employing the perturbative QCD approach. The two-meson distribution amplitudes P-wave K π are adopted to describe the final state interactions of the kaon-pion pair in the resonance region. The resonance line shape for the P-wave K π component K * (892) in the timelike form factor F K π (s) is parameterized by the relativistic Breit-Wigner function. For most considered decay modes, the theoretical predictions for their branching ratios are consistent with currently available experimental measurements within errors. We also disscuss some ratios of the branching fractions of the concerned decay processes. More precise data from LHCb and Belle-II are expected to test our predictions.

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Section: Introductionmentioning

confidence: 79%

“…In the framework of the PQCD factorization approach, the two-body charmed hadronic decays B → DM have been studied for many years [26,28,30,[50][51][52][53][54][55][56][57][58][59][60][61][62]. In Refs.…”

Section: Introductionmentioning

confidence: 99%

Quasi-two-body decays $$B \rightarrow D K^*(892) \rightarrow D K \pi $$ in the perturbative QCD approach

Wang

et al. 2019

Eur. Phys. J. C

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“…[7,8]. Up to now, no stable light flavor pentaquark states have been found, but light flavor baryons probably have significant pentaquark components [9].…”

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confidence: 91%

Identifying Exotic Hidden-Charm Pentaquarks

et al. 2015

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The LHCb Collaboration at the Large Hadron Collider at CERN discovered two pentaquark states P_{c}(4380) and P_{c}(4450). These two hidden-charm states are interpreted as the loosely bound Σ_{c}(2455)D^{*} and Σ_{c}^{*}(2520)D^{*} molecular states in the boson exchange interaction model, which provides an explanation for why the experimental width of P_{c}(4450) is much narrower than that of P_{c}(4380). The discovery of the new resonances P_{c}(4380) and P_{c}(4450), indeed, opens a new page for hadron physics. The partners of P_{c}(4380) and P_{c}(4450) should be pursued in future experiments.

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“…It is related to how the strange and anti-strange quarks are distributed in the nucleon. The sign of the strange form factor will shed light on whether the qqqss components in nucleon is dominated by colored di-quark configurations or by color singlet configurations [25].…”

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confidence: 99%

Pure sea-quark contributions to the magnetic form factors ofΣbaryons

Wang¹,

Leinweber²,

Thomas³

2015

Phys. Rev. D

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We propose the pure sea-quark contributions to the magnetic form factors of Σ baryons, G u Σ − and G d Σ + , as priority observables for the examination of sea-quark contributions to baryon structure, both in present lattice QCD simulations and possible future experimental measurement. G u Σ − , the u-quark contribution to the magnetic form factor of Σ − , and G d Σ + , the d-quark contribution to the magnetic form factor of Σ + , are similar to the strange quark contribution to the magnetic form factor of the nucleon, but promise to be larger by an order of magnitude. We explore the size of this quantity within chiral effective field theory, including both octet and decuplet intermediate states.The finite range regularization approach is applied to deal with ultraviolet divergences. Drawing on an established connection between quenched and full QCD, this approach makes it possible to predict the sea quark contribution to the magnetic form factor purely from the meson loop. In the familiar convention where the quark charge is set to unity G u Σ − = G d Σ + . We find a value of −0.38 +0.16 −0.17 µN , which is about seven times larger than the strange magnetic moment of the nucleon found in the same approach. Including quark charge factors, the u-quark contribution to the Σ − magnetic moment exceeds the strange quark contribution to the nucleon magnetic moment by a factor of 14.

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Two-body charmed B(s) decays involving a light scalar meson

Cited by 19 publications

References 95 publications

Quasi-two-body decays $$B \rightarrow D K^*(892) \rightarrow D K \pi $$ in the perturbative QCD approach

Quasi-two-body decays $$B \rightarrow D K^*(892) \rightarrow D K \pi $$ in the perturbative QCD approach

Identifying Exotic Hidden-Charm Pentaquarks

Pure sea-quark contributions to the magnetic form factors ofΣbaryons

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