Charge asymmetry in e+e−→B(*)B¯(*) processes in the vicinity of Υ(4S)

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Charge asymmetry in e+e−→B(*)B¯(*) processes in the vicinity of Υ(4S). / Salnikov, S. G.; Milstein, A. I.

In: Nuclear Physics A, Vol. 1073, 123443, 09.2026.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{bd8506bf9d5f4fee8847daaa7d8775ea,

title = "Charge asymmetry in e+e−→B(*)B¯(*) processes in the vicinity of Υ(4S)",

abstract = "The effects of isotopic invariance violation in the processes e+e−→BB¯, e+e−→B*B¯, and e+e−→B*B¯* are considered in the energy range between the thresholds of B+B− and Bs0B¯s0 production.The analysis is based on taking into account the final-state interaction in a six-channel problem. Our approach allowed us to obtain good agreement with recent Belle-II results for the ratio of the B0B¯0 and B+B− production cross sections in e+e− annihilation in the vicinity of Υ(4S). It is shown that at higher energies the ratios of the cross sections for pairs of neutral and charged B(*) mesons can differ significantly from unity. A detailed measurement of this effect will provide evidence that the nontrivial energy dependence of the B(*)B¯(*) production cross sections is a consequence of interference of the particle production amplitudes in the multichannel problem.",

keywords = "B mesons, Charge assymetry, Final-state interaction",

author = "Salnikov, {S. G.} and Milstein, {A. I.}",

year = "2026",

month = sep,

doi = "10.1016/j.nuclphysa.2026.123443",

language = "English",

volume = "1073",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier Science Publishing Company, Inc.",

}

RIS

TY - JOUR

T1 - Charge asymmetry in e+e−→B(*)B¯(*) processes in the vicinity of Υ(4S)

AU - Salnikov, S. G.

AU - Milstein, A. I.

PY - 2026/9

Y1 - 2026/9

N2 - The effects of isotopic invariance violation in the processes e+e−→BB¯, e+e−→B*B¯, and e+e−→B*B¯* are considered in the energy range between the thresholds of B+B− and Bs0B¯s0 production.The analysis is based on taking into account the final-state interaction in a six-channel problem. Our approach allowed us to obtain good agreement with recent Belle-II results for the ratio of the B0B¯0 and B+B− production cross sections in e+e− annihilation in the vicinity of Υ(4S). It is shown that at higher energies the ratios of the cross sections for pairs of neutral and charged B(*) mesons can differ significantly from unity. A detailed measurement of this effect will provide evidence that the nontrivial energy dependence of the B(*)B¯(*) production cross sections is a consequence of interference of the particle production amplitudes in the multichannel problem.

AB - The effects of isotopic invariance violation in the processes e+e−→BB¯, e+e−→B*B¯, and e+e−→B*B¯* are considered in the energy range between the thresholds of B+B− and Bs0B¯s0 production.The analysis is based on taking into account the final-state interaction in a six-channel problem. Our approach allowed us to obtain good agreement with recent Belle-II results for the ratio of the B0B¯0 and B+B− production cross sections in e+e− annihilation in the vicinity of Υ(4S). It is shown that at higher energies the ratios of the cross sections for pairs of neutral and charged B(*) mesons can differ significantly from unity. A detailed measurement of this effect will provide evidence that the nontrivial energy dependence of the B(*)B¯(*) production cross sections is a consequence of interference of the particle production amplitudes in the multichannel problem.

KW - B mesons

KW - Charge assymetry

KW - Final-state interaction

UR - https://www.scopus.com/pages/publications/105039776475

UR - https://www.mendeley.com/catalogue/2418fbde-9aa5-3190-87e6-aabbdeac68b4/

U2 - 10.1016/j.nuclphysa.2026.123443

DO - 10.1016/j.nuclphysa.2026.123443

M3 - Article

VL - 1073

JO - Nuclear Physics A

JF - Nuclear Physics A

SN - 0375-9474

M1 - 123443

ER -

ID: 79969556