Spectroscopic assignments of the excited B-mesons

Godfrey, Stephen; Moats, Kenneth

doi:10.1140/epja/i2019-12763-9

Cited by 11 publications

(15 citation statements)

References 58 publications

(100 reference statements)

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“…[41]. The B s (1 3 P 0 ) state is also predicted to be a broad state with a width of ∼ 130 − 230 MeV in the other models [16,17,22]. We also study the radiative decay of B s (1 3 P 0 ), the predicted partial width for Γ[B s (1 3 P 0 ) → B 0 * s γ] ≃ 100 keV is close to the predicted value 76 keV in Ref.…”

Section: 3 P 0 Statessupporting

confidence: 79%

“…In Refs. [19,22], B J (5970) was suggested to be a candidate for B(1 3 D 1 ) [19]. With this assignment we find that the theoretical width Γ ≃ 230 MeV is too broad to be comparable with the measured value measured value Γ exp ≃ 60 − 70 MeV (see Table I).…”

Section: 3 D 1 Statesmentioning

confidence: 53%

“…Stimulated by the exciting progress in experiments, many theoretical studies of the masses [11][12][13][14][15][16][17][18][19], strong decays [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32], radiative decays [17-19, 32, 33], and semileptonic decays [34] for the excited bottom and bottom-strange meson states have been carried out with different methods in recent * mail: zhongxh@hunnu.edu.cn years. For the well established states B 1 (5721), B * 2 (5747), B s1 (5830) and B * s2 (5840), there are no puzzles to classify them as the first orbital excitations (i.e.…”

Section: Introductionmentioning

confidence: 99%

“…In the literature, the B J (5840) resonance is explained with the B(2 1 S 0 ) [18][19][20], the B(2 3 S 1 ) [23], or the B(1 3 D 1 ) state [21]. While for the resonance B J (5970), there are interpretations with the radially excited state B(2 3 S 1 ) [14,16,20], or with the second orbitally excited B-meson states [22] either B(1 3 D 3 ) [18,23] or B(1 3 D 1 ) [19]. It should be mentioned that in Ref.…”

Section: Introductionmentioning

confidence: 99%

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Towards establishing an abundant $B$ and $B_s$ spectrum up to the second orbital excitations

li,

Ni,

Zhong

2021

Preprint

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Stimulated by the exciting progress in experiments, we carry out a combined analysis of the masses, and strong and radiative decay properties of the B and B s -meson states up to the second orbital excitations. Based on our good descriptions of the mass and decay properties for the low-lying well-established states B 1 (5721), B * 2 (5747), B s1 (5830) and B * s2 (5840), we give our quark model classifications for the high mass resonances observed in recent years. It is found that (i) the B J (5840) resonance may be explained as the low mass mixed state B(|S D L ) via 2 3 S 1 -1 3 D 1 mixing, or interpreted as the 2S -wave state B(2 1 S 0 ). (ii) The B J (5970) resonance may be assigned as the 1 3 D 3 state in the B meson family. (iii) The narrow structure around 6064 MeV observed in the B + K − mass spectrum at LHCb may be mainly caused by the B sJ (6109) resonance decaying into B * + K − , and favors the assignment of the high mass 1D-wave mixed state B s (1D ′2 ) with J P = 2 − . (iv) The relatively broader B sJ (6114) structure observed at LHCb may be explained with the mixed state B s (|S D H ) via 2 3 S 1 -1 3 D 1 mixing. Most of the missing 1P-, 1D-, and 2S -wave B-and B s -meson states have a relatively narrow width, they are most likely to be observed in their dominant decay channels with a larger data sample at LHCb.

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Section: 3 P 0 Statessupporting

confidence: 79%

Section: 3 D 1 Statesmentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Towards establishing an abundant $B$ and $B_s$ spectrum up to the second orbital excitations

li,

Ni,

Zhong

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…In the bottom sector, new bottom states B J (5721), B * 2 (5747), B J (5840) and B J (5970) were observed by CDF [22] and LHCb [23]. The properties of these hadrons have drawn extensive attractions in recent years [24][25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Chiral effective Lagrangian for excited heavy-light mesons from QCD

Chen,

Fu,

et al. 2021

Preprint

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We derive the chiral effective Lagrangian for excited heavy-light mesons from QCD under proper approximations. We focus on the chiral partners with j P l = 3 2 + and j P l = 3 2 − which amounts to(1 + , 2 + ) and (1 − , 2 − ) states respectively. The low energy constants including the masses of the chiral partners are calculated. The calculated spectrum for the excited mesons are found roughly consistent with experimental data. In addition, our results indicate that quantum numbers of BJ (5970) can be identified with 1 − or 2 − .

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Mass spectroscopy, decays and mixing parameters of open flavour bottom and bottom strange mesons using instanton induced potential with additional confinement

Pandya

Shah

Vinodkumar

2023

J. Phys. G: Nucl. Part. Phys.

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The mass spectra for the heavy-light $(b\bar{q}) ;$ $q = u$ or $d$ and $s$ bottom and bottom strange mesons are computed based on the instanton induced interactions inspired potential along with additional confinement term. Spectroscopic predictions for ground, radial and orbital states are provided. The low-lying states $1S$ and $1P$ are found to be in an excellent agreement with the PDG reported values. The predicted mass spectra strongly support the newly observed $B_J(5840)$ and $B_J(5970)$ by $LHCb$ collaboration as $2^1S_0$ and $1^3D_3$ states respectively. Apart from the mass spectra, the other observables like radiative transitions, decay constant for $1S$ state, the di-leptonic rare decays and the Cabibbo allowed two body hadronic decays are also predicted. The predicted value of branching ratio of rare decay $B_s^0 \rightarrow \mu^+ \mu^-$ as 3.65 $\times 10^{-9}$ is in excellent agreement with the recent measurement of $LHCb$ of $(3.09^{+0.46}_{-0.43}) \times 10^{-9}$. The branching ratios of color favoured decays $B_{(s)} \rightarrow D^{(*)-}_{(s)} \ \pi^+$ and $B_{(s)} \rightarrow D^{(*)-}_{(s)} \ \rho^+$ are found to be exceeding by factor of two as compared to the PDG listed values. The mixing parameters of $B^0_q - \bar{B^0_q}$, $\Delta M_q, x_q$ and $\chi_q$ are obtained as $0.512$, $0.755$ and $0.1877$ respectively which are very close to the PDG listed values of $0.5065 \pm 0.0019$, $0.769 \pm 0.004$ and $0.1858 \pm 0.0011$ respectively.

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Spectroscopic assignments of the excited B-mesons

Cited by 11 publications

References 58 publications

Towards establishing an abundant $B$ and $B_s$ spectrum up to the second orbital excitations

Towards establishing an abundant $B$ and $B_s$ spectrum up to the second orbital excitations

Chiral effective Lagrangian for excited heavy-light mesons from QCD

Mass spectroscopy, decays and mixing parameters of open flavour bottom and bottom strange mesons using instanton induced potential with additional confinement

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