Measurement of cross section for e+e→Ξ0Ξ¯0 near threshold

The BESIII Collaboration

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

1 Цитирования (Scopus)

Аннотация

Using e+e collision data at ten center-of-mass energies between 2.644 and 3.080 GeV collected with the BESIII detector at BEPCII and corresponding to an integrated luminosity of about 500 pb−1, we measure the cross sections and effective form factors for the process e+e→Ξ0Ξ¯0 utilizing a single-tag method. A fit to the cross section of e+e→Ξ0Ξ¯0 with a pQCD-driven power function is performed, from which no significant resonance or threshold enhancement is observed. In addition, the ratio of cross sections for the processes e+e→ΞΞ¯+ and Ξ0Ξ¯0 is calculated using recent BESIII measurement and is found to be compatible with expectation from isospin symmetry.

Язык оригиналаанглийский
Номер статьи136557
ЖурналPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Том820
DOI
СостояниеОпубликовано - 10 сент. 2021

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  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ
  • 1.03.BU АСТРОНОМИЯ И АСТРОФИЗИКА

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