Measurement of χ<i><sub>cj</sub></i> decaying into <i>p</i>(<i>n</i>)over-barπ<SUP>-</SUP> and <i>p</i>(<i>n</i>)over-barπ<SUP>-</SUP>π<SUP>0</SUP>


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Ablikim M., Achasov M. N., Albayrak O., Ambrose D. J., An F. F., An Q., ...More

PHYSICAL REVIEW D, vol.86, no.5, 2012 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 86 Issue: 5
  • Publication Date: 2012
  • Doi Number: 10.1103/physrevd.86.052011
  • Journal Name: PHYSICAL REVIEW D
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Bursa Uludag University Affiliated: No

Abstract

Using a data sample of 1.06 x 10(8) psi' events collected with the BESIII detector in 2009, the branching fractions of chi(cJ) -> p (n) over bar pi(-) and chi(cJ) -> p (n) over bar pi(-)pi(0) (J = 0, 1, 2) are measured. (Throughout the text, inclusion of charge conjugate modes is implied if not stated otherwise.) The results for chi(c0) -> p (n) over bar pi(-) and chi(c2) -> p (n) over bar pi(-) are consistent with, but much more precise than, those of previous measurements. The decays of chi(c1) -> p (n) over bar pi(-) and chi(cJ) -> p (n) over bar pi(-)pi(0) are observed for the first time.