Variation of the relative yield of charged and neutral B mesons across the Υ(4S) resonance

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Abstract

It is shown that the ratio of the production rates of the pairs B +B- and B0B0 should experience a substantial and rapid variation with energy within the width of the Υ(4S) resonance, crossing the value of one near the center of the resonance. This behavior is due to an interference of the rapidly changing with energy Breit-Wigner phase with the phase introduced in the wave function of charged mesons by their Coulomb interaction.

Original languageEnglish (US)
Pages (from-to)1783-1791
Number of pages9
JournalModern Physics Letters A
Volume18
Issue number25
DOIs
StatePublished - Aug 20 2003

Bibliographical note

Funding Information:
I gratefully acknowledge useful discussions with Ron Poling, Jon Urheim, and Arkady Vainshtein of the experimental and theoretical issues related to the problem considered in this paper. This work is supported in part by the DOE grant DE-FG02-94ER40823.

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