Next-to-leading order QCD corrections to paired B c production in e $\mathplus$ e - annihilationстатья
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Дата последнего поиска статьи во внешних источниках: 8 апреля 2022 г.
Аннотация:We present theoretical analysis of paired Bc mesons production in e+e− annihilation at different energy scales taking into account full next-to-leading order QCD corrections. Both possible electroweak channels are considered: production via virtual photon and via virtual Z -boson. We study in detail the role of radiative QCD corrections, which were found to be significant especially at low energies. It is shown that the contribution from Z -boson is significant at high energies ( s>MZ/2 ) especially in the case of paired production of pseudo-scalar and vector ( Bc+Bc⁎ ) mesons. Azimuthal asymmetry induced by a P -violating weak interaction with Z -boson is also analyzed.