TY - JOUR
T1 - Determination of spin and parity of D(s)⁎ mesons
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M.N.
AU - Kalantar-Nayestanaki, N.
AU - Kappert, R.
AU - Kavatsyuk, M.
AU - Messchendorp, Johan
AU - Rodin, Viktor
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2023/11/10
Y1 - 2023/11/10
N2 - The spin and parity of the charmed mesons Ds⁎+, D⁎0 and D⁎+ are determined for the first time to be JP=1− with significances greater than 10σ 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−→Ds⁎+Ds−, D⁎0D0 and D⁎+D−, with Ds⁎+→Ds+γ, D⁎0→D0π0, and D⁎+→D+π0. The results confirm the quark model predictions.
AB - The spin and parity of the charmed mesons Ds⁎+, D⁎0 and D⁎+ are determined for the first time to be JP=1− with significances greater than 10σ 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−→Ds⁎+Ds−, D⁎0D0 and D⁎+D−, with Ds⁎+→Ds+γ, D⁎0→D0π0, and D⁎+→D+π0. The results confirm the quark model predictions.
KW - BESIII
KW - Charmed meson
KW - Spin and parity
UR - http://www.scopus.com/inward/record.url?scp=85176095913&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2023.138245
DO - 10.1016/j.physletb.2023.138245
M3 - Article
SN - 0168-583X
VL - 846
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
M1 - 138245
ER -