Higher hybrid bottomonia in an extended potential model

Akbar, Nosheen; Sultan, M. Atif; Masud, Bilal; Akram, Faisal

doi:10.1103/physrevd.95.074018

Cited by 22 publications

(35 citation statements)

References 46 publications

(75 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a general remark, we note that the obtained spectrum is similar to the results of nonrelativistic and semirelativistic calculations [43][44][45][46][47][48][49][50][51][52][53][54][55][56]. In this concern, it can be argued that the high value of the bottom quark mass tends to reduce the relativistic effects with respect, for example, to the charmonium case.…”

Section: Bottomonium Spectrumsupporting

confidence: 79%

“…The Υ (10860) resonance is generally interpreted as a Υ (5 3 S 1 ), e.g. in [43,45,49,51,52]. However, the theoretical calculations for the pion emission decay widths, to Υ (1S), Υ (2S) and Υ (3S) are two orders of magnitude [48] greater than the measurement [73] leading to different possible interpretations, such as that Υ (10860) is a mixing of a standard Υ (5S) with a P hybrid state [74], Finally, in Ref.…”

Section: υ (4s) υ (10860) and υ (11020)mentioning

confidence: 99%

See 1 more Smart Citation

Bottomonium spectrum with a Dirac potential model in the momentum space

et al. 2020

View full text Add to dashboard Cite

We study the bottomonium spectrum using a relativistic potential model in the momentum space. This model is based on a complete one gluon exchange interaction with a momentum dependent screening factor to account for the effects due to virtual pair creation that appear close to the decay thresholds. The overall model does not make use of nonrelativistic approximations. We fit well established bottomonium states below the open bottom threshold and predict the rest of the spectrum up to ≈ 11200 MeV and J PC = 3 −−. Uncertainties are treated rigorously and propagated in full to the parameters of the model using a Monte Carlo to identify if which deviations from experimental data can be absorbed into the statistical uncertainties of the models and which can be related to physics beyond the bb picture, guiding future research. We get a good description of the spectrum, in particular the Belle measurement of the η b (2S) state and the Υ (10860) and χ b (3P) resonances.

show abstract

Section: Bottomonium Spectrumsupporting

confidence: 79%

Section: υ (4s) υ (10860) and υ (11020)mentioning

confidence: 99%

Bottomonium spectrum with a Dirac potential model in the momentum space

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Υ (10860) is usually assigned as Υ (5S) [113][114][115][116] while it is regarded as one of the strong candidates for the exotic hadron in Ref. [117] due to the unexpectedly large partial widths which disagree with the expectation for a pure bb state.…”

Section: Masses Of Bottomoniamentioning

confidence: 99%

Regge trajectories for heavy quarkonia from the quadratic form of the spinless Salpeter-type equation

Chen

2018

Eur. Phys. J. C

View full text Add to dashboard Cite

In this paper, we present one new form of the Regge trajectories for heavy quarkonia which is obtained from the quadratic form of the spinless Salpeter-type equation (QSSE) by employing the Bohr-Sommerfeld quantization approach. The obtained Regge trajectories take the parameterized form M 2 = β(c l l + π n r + c 0 ) 2/3 + c 1 , which are different from the present Regge trajectories. Then we apply the obtained Regge trajectories to fit the spectra of charmonia and bottomonia. The fitted Regge trajectories are in good agreement with the experimental data and the theoretical predictions.

show abstract

“…In the past years, stimulated by the exciting progress in experiments, many theoretical studies of bottomonium spectrum have been carried out with different methods, such as the widely used potential models [9][10][11][12][13][14][15][16][17], lattice QCD [18][19][20][21], effective Lagrangian approach [22], nonrelativistic effective field theories of QCD [23][24][25], various coupled-channel quark models [26][27][28], and light front quark model [29][30][31][32]. Although some comparable predictions from different mod- * E-mail: guilongcheng@ihep.ac.cn † E-mail: zhongxh@hunnu.edu.cn els have been achieved, many properties of the bottomonium states are still not well understood.…”

Section: Introductionmentioning

confidence: 99%

Spectrum and electromagnetic transitions of bottomonium

et al. 2017

View full text Add to dashboard Cite

Stimulated by the exciting progress in the observation of new bottomonium states, we study the bottomonium spectrum. To calculate the mass spectrum, we adopt a nonrelativistic screened potential model. The radial Schr\"{o}dinger equation is solved with the three-point difference central method, where the spin-dependent potentials are dealt with non-perturbatively. With this treatment, the corrections of the spin-dependent potentials to the wave functions can be included successfully. Furthermore, we calculate the electromagnetic transitions of the $nS$ ($n\leq 4$), $nP$ ($n\leq 3$), and $nD$ ($n\leq 2$) bottomonium states with a nonrelativistic electromagnetic transition operator widely applied to meson photoproduction reactions. Our predicted masses, hyperfine and fine splittings, electromagnetic transition widths and branching ratios of the bottomonium states are in good agreement with the available experimental data. Especially, the EM transitions of $\Upsilon(3S)\to \chi_{b1,2}(1P)\gamma$, which were not well understood in previous studies, can be reasonably explained by considering the corrections of the spin-dependent interactions to the wave functions. We also discuss the observations of the missing bottomonium states by using radiative transitions. Some important radiative decay chains involving the missing bottomonium states are suggested to be observed. We hope our study can provide some useful references to observe and measure the properties of bottomonium mesons in forthcoming experiments.Comment: 14 pages, 1 figure, revised version. To appear in PR

show abstract

Higher hybrid bottomonia in an extended potential model

Cited by 22 publications

References 46 publications

Bottomonium spectrum with a Dirac potential model in the momentum space

Bottomonium spectrum with a Dirac potential model in the momentum space

Regge trajectories for heavy quarkonia from the quadratic form of the spinless Salpeter-type equation

Spectrum and electromagnetic transitions of bottomonium

Contact Info

Product

Resources

About