Observation of an ısoscalar resonance with exotic J^{PC}=1^{-+} quantum numbers in J/?????^{'}
Yükleniyor...
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Using a sample of (10.09±0.04)×10^{9} J/? events collected with the BESIII detector operating at the BEPCII storage ring, a partial wave analysis of the decay J/?????^{'} is performed. The first observation of an isoscalar state with exotic quantum numbers J^{PC}=1^{-+}, denoted as ?_{1}(1855), is reported in the process J/????_{1}(1855) with ?_{1}(1855)???^{'}. Its mass and width are measured to be (1855±9_{-1}^{+6}) MeV/c^{2} and (188±18_{-8}^{+3}) MeV, respectively, where the first uncertainties are statistical and the second are systematic, and its statistical significance is estimated to be larger than 19?.
Açıklama
Anahtar Kelimeler
Kaynak
PHYSICAL REVIEW D
WoS Q Değeri
Q1
Scopus Q Değeri
Cilt
129
Sayı
19
Künye
Ablikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., Amoroso, A., An, M. R., An, Q., Bai, X. H., Bai, Y., Bakina, O., Ferroli, R. B., Balossino, I., Ban, Y., Batozskaya, V., Becker, D., Begzsuren, K., Berger, N., Bertani, M., … BESIII Collaboration (2022). Observation of an Isoscalar Resonance with Exotic J^{PC}=1^{-+} Quantum Numbers in J/ψ→γηη^{'}. Physical review letters, 129(19), 192002. https://doi.org/10.1103/PhysRevLett.129.192002
