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Determination of spin and parity of [formula omitted] mesons.
- Source :
-
Physics Letters B . Nov2023, Vol. 846, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- The spin and parity of the charmed mesons D s ⁎ + , D ⁎ 0 and D ⁎ + are determined for the first time to be J P = 1 − with significances greater than 10 σ over other hypotheses of 2 + and 3 − , using an e + e − collision data sample with an integrated luminosity of 3.19 fb−1 collected by the BESIII detector at a center-of-mass energy of 4.178 GeV. Different spin-parity hypotheses are tested via a helicity amplitude analysis of the processes e + e − → D s ⁎ + D s − , D ⁎ 0 D 0 and D ⁎ + D − , with D s ⁎ + → D s + γ , D ⁎ 0 → D 0 π 0 , and D ⁎ + → D + π 0. The results confirm the quark model predictions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03702693
- Volume :
- 846
- Database :
- Academic Search Index
- Journal :
- Physics Letters B
- Publication Type :
- Academic Journal
- Accession number :
- 173487460
- Full Text :
- https://doi.org/10.1016/j.physletb.2023.138245