Isospin violating decays of positive parity $$B_s$$ B s mesons in HM $$\chi $$ χ PT

Fajfer, Svjetlana; Brdnik, Anita Prapotnik

doi:10.1140/epjc/s10052-016-4377-1

Cited by 5 publications

(6 citation statements)

References 64 publications

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“…2 Mass shift of scalar and axial-vector heavy mesons due to hadronic loops Self-energy hadronic loop corrections to 0 + and 1 + heavy mesons have been considered in the literature [31,[48][49][50][51][52][53][54].…”

Section: S0mentioning

confidence: 99%

“…Self-energy hadronic loop corrections to 0 + and 1 ′+ heavy mesons have been considered in the literature [28,[39][40][41][42][43][44][45]. Since chiral loop corrections to heavy scalar mesons have both finite and divergent parts, it is natural to consider the framework of HMChPT where the divergences and the renormalization scale dependence arising from the chiral loops induced by the lowest-order tree Lagrangian can be absorbed into the counterterms which have the same structure as the next-order tree Lagrangian.…”

Section: Mass Shift Of Scalar and Axial-vector Heavy Mesons Due To Ha...mentioning

confidence: 99%

“…Self-energy hadronic loop corrections to 0 + and 1 ′+ heavy mesons have been discussed in the literature within the framework of HMChPT [28,[39][40][41][42][43][44][45]. Guo, Krewald and Meißner (GKM) [28] considered three different models for calculations.…”

Section: Comparison With Other Work In Hmchptmentioning

confidence: 99%

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Masses of scalar and axial-vector B mesons revisited

Cheng

2017

Eur. Phys. J. C

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The SU(3) quark model encounters a great challenge in describing even-parity mesons. Specifically, the qq quark model has difficulties in understanding the light scalar mesons below 1 GeV, scalar and axial-vector charmed mesons and 1 + charmonium-like state X (3872). A common wisdom for the resolution of these difficulties lies on the coupled channel effects which will distort the quark model calculations. In this work, we focus on the near mass degeneracy of scalar charmed mesons, D * s0 and D * 0 0 , and its implications. Within the framework of heavy meson chiral perturbation theory, we show that near degeneracy can be qualitatively understood as a consequence of self-energy effects due to strong coupled channels. Quantitatively, the closeness of D * s0 and D * 0 0 masses can be implemented by adjusting two relevant strong couplings and the renormalization scale appearing in the loop diagram. Then this in turn implies the mass similarity of B * s0 and B * 0 0 mesons. The P * 0 P 1 interaction with the Goldstone boson is crucial for understanding the phenomenon of near degeneracy. Based on heavy quark symmetry in conjunction with corrections from QCD and 1/m Q effects, we obtain the masses of B *

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Section: S0mentioning

confidence: 99%

Section: Mass Shift Of Scalar and Axial-vector Heavy Mesons Due To Ha...mentioning

confidence: 99%

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Masses of scalar and axial-vector B mesons revisited

Cheng

2017

Eur. Phys. J. C

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“…After the observation of the D * s0 (2317) and D s1 (2460), the HHχPT has been extended to discuss the mass corrections of the excited heavy mesons with spin-parity 0 + and 1 + [577, 620,621,635,30,636,637,638,639,622]. In these works, the two even-parity states [D * s0 (2317), D s1 (2460)] and their non-strange partner states [D * 0 (2300), D 1 (2430)] were treated as the spin doublets (0 + , 1 + ) with j P = 1 2 + (L = 1), which were described by the superfield S. As mentioned in Sec.1.1, one mystery of the excited charmed mesons is their surprising mass degeneracy,…”

Section: Heavy Mesonsmentioning

confidence: 99%

Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules

Li¹,

Wang²,

Wang³

et al. 2022

Preprint

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Chiral symmetry and its spontaneous breaking play an important role both in the light hadron and heavy hadron systems. In this work, we shall review the investigations on the chiral corrections to the properties of the heavy mesons and baryons within the framework of the chiral perturbation theory (χPT). We will also review the scatterings of the light pseudoscalar mesons and heavy hadrons. Moreover, the modern nuclear force was built upon the chiral effective field theory (χEFT). In the past decades many new hadron states were observed experimentally. A large group of these states are near-threshold resonances, such as the charged charmoniumlike Z c and Z cs states, bottomoniumlike Z b states, hidden-charm pentaquark P c and P cs states and the doubly charmed T cc state etc. They are very good candidates of the loosely bound molecular states composed of a pair of charmed hadrons. The same chiral dynamics not only governs the nuclei and forms the deuteron, but also dictates the above shallow bound states or resonances. We will perform an extensive review on the progress on the heavy hadronic molecular states within the framework of χEFT.

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“…[15][16][17][18][19][20][21][22] for predictions of some of the states and Refs. [23,24] for calculations in chiral perturbation theory up to one-loop order). However, the B * s0 and B s1 masses used there, (5625 ± 45) MeV and (5671 ± 45) MeV, respectively, are too low to be consistent with the HQFS expectations derived from Eq.…”

mentioning

confidence: 99%

Update on strong and radiative decays of the $D_{s0}^{*}(2317)$ and $D_{s1}(2460)$ and their bottom cousins

Fu,

Grießhammer,

Guo

et al. 2021

Preprint

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Isospin violating decays of positive parity $$B_s$$ B s mesons in HM $$\chi $$ χ PT

Abstract: keV. More precise knowledge of the coupling constant describing the interaction of positive and negative parity heavy mesons with light pseudo-scalar mesons would help to increase the accuracy of our calculation.

Cited by 5 publications

References 64 publications

Masses of scalar and axial-vector B mesons revisited

Masses of scalar and axial-vector B mesons revisited

Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules

Update on strong and radiative decays of the $D_{s0}^{*}(2317)$ and $D_{s1}(2460)$ and their bottom cousins

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