Physics of B&lt;sub&gt;c&lt;/sub&gt;-mesons

Герштейн, С.С.; V.V.Kiselev,; Лиходед, А. К.; Tkabladze, A.V.

doi:10.3367/ufnr.0165.199501a.0003

Cited by 57 publications

(31 citation statements)

References 112 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The estimates of thef Bc value within the potential models have the essential uncertainty, f Bc = 500 ± 100 MeV [14]. The QCD sum rule estimate of the f Bc value for the pseudoscalar state gives f Bc = 385 ± 25 MeV [15], which is in a good agreement with the evaluation in the framework of recent lattice computations [16], where f Bc = 395 (2) MeV with the error bar, giving the statistical uncertainty only.…”

Section: Calculation Techniquesupporting

confidence: 78%

Hadronic production ofS- andP-wave states of $$\bar b$$ -quarkonium-quarkonium

Berezhnoy

Kiselev

Лиходед

1996

Z. Physik A - Hadrons and Nuclei

View full text Add to dashboard Cite

In the leading O(α 4 s ) order of the perturbative QCD, the hadronic production cross-sections of S-and P -wave states of B c meson are calculated. The results for the S-wave levels are compared with the values given in other papers as well as in the model of the b quark fragmenatation into B c . In the given order, the crosssections of the hadronic production of the P -wave states are calculated for the first time. Their contribution into the B c meson production is less than 10%. There is a strong difference between the predictions of the fragmentation model and the exact perturbative calculations. These difeerences are discussed in details for the differential distributions over variuos kinematical quantities.

show abstract

Section: Calculation Techniquesupporting

confidence: 78%

Hadronic production ofS- andP-wave states of $$\bar b$$ -quarkonium-quarkonium

Berezhnoy

Kiselev

Лиходед

1996

Z. Physik A - Hadrons and Nuclei

View full text Add to dashboard Cite

show abstract

“…The 1S-level position is slightly higher than in previous estimates in the framework of potential models [15]. This deviation is basically caused by the greater value of T parameter, but not by the difference in the quark mass values, since thebc level masses are not very much sensitive to the quark mass variation.…”

Section: Basic Relationscontrasting

confidence: 60%

“…This deviation is basically caused by the greater value of T parameter, but not by the difference in the quark mass values, since thebc level masses are not very much sensitive to the quark mass variation. Using the estimate of spin-dependent splitting of 1S-level in bc system, m(1 − ) − m(0 − ) ≈ 60 − 70 MeV [15], one gets the mass of the basic pseudoscalar state m Bc (0 − ) = 6.32 ± 0.05 GeV.…”

Section: Basic Relationsmentioning

confidence: 99%

Heavy-quark-meson mass gap from spectroscopy

Kiselev

1996

Physics Letters B

View full text Add to dashboard Cite

show abstract

“…In the last decade the great success was obtained in the study of the heavy quarkonium production and decay (see, for example, Refs. [1,2]). The investigation of the processes with the heavy quarks is based on the factorization hypothesis [3].…”

Section: Introductionmentioning

confidence: 99%