Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Evidence for a vector charmoniumlike state in e+e- → Ds+ Ds2∗ (2573)-+ c. c. / Belle Collaboration.
в: Physical Review D, Том 101, № 9, 091101, 01.05.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Evidence for a vector charmoniumlike state in e+e- → Ds+ Ds2∗ (2573)-+ c. c.
AU - The BELLE collaboration
AU - Jia, S.
AU - Shen, C. P.
AU - Adachi, I.
AU - Aihara, H.
AU - Al Said, S.
AU - Asner, D. M.
AU - Atmacan, H.
AU - Aulchenko, V.
AU - Aushev, T.
AU - Ayad, R.
AU - Badhrees, I.
AU - Behera, P.
AU - Belous, K.
AU - Bennett, J.
AU - Besson, D.
AU - Bhardwaj, V.
AU - Bilka, T.
AU - Biswal, J.
AU - Bonvicini, G.
AU - Bozek, A.
AU - Bračko, M.
AU - Browder, T. E.
AU - Campajola, M.
AU - Červenkov, D.
AU - Chang, P.
AU - Chen, A.
AU - Cheon, B. G.
AU - Chilikin, K.
AU - Cho, K.
AU - Choi, S. K.
AU - Choi, Y.
AU - Choudhury, S.
AU - Cinabro, D.
AU - Cunliffe, S.
AU - Dash, N.
AU - De Nardo, G.
AU - Di Capua, F.
AU - Eidelman, S.
AU - Epifanov, D.
AU - Gabyshev, N.
AU - Garmash, A.
AU - Krokovny, P.
AU - Kuzmin, A.
AU - Matvienko, D.
AU - Shebalin, V.
AU - Shwartz, B.
AU - Usov, Y.
AU - Vinokurova, A.
AU - Zhilich, V.
AU - Zhulanov, V.
PY - 2020/5/1
Y1 - 2020/5/1
N2 - We report the measurement of e+e-→Ds+Ds2∗(2573)-+c.c. via initial-state radiation using a data sample of an integrated luminosity of 921.9 fb-1 collected with the Belle detector at the γ(4S) and nearby. We find evidence for an enhancement with a 3.4σ significance in the invariant mass of Ds+Ds2∗(2573)-+c.c. The measured mass and width are (4619.8-8.0+8.9(stat.)±2.3(syst.)) MeV/c2 and (47.0-14.8+31.3(stat.)±4.6(syst.)) MeV, respectively. The mass, width, and quantum numbers of this enhancement are consistent with the charmoniumlike state at 4626 MeV/c2 recently reported by Belle in e+e-→Ds+Ds1(2536)-+c.c. The product of the e+e-→Ds+Ds2∗(2573)-+c.c. cross section and the branching fraction of Ds2∗(2573)-→D¯0K- is measured from Ds+Ds2∗(2573)- threshold to 5.6 GeV.
AB - We report the measurement of e+e-→Ds+Ds2∗(2573)-+c.c. via initial-state radiation using a data sample of an integrated luminosity of 921.9 fb-1 collected with the Belle detector at the γ(4S) and nearby. We find evidence for an enhancement with a 3.4σ significance in the invariant mass of Ds+Ds2∗(2573)-+c.c. The measured mass and width are (4619.8-8.0+8.9(stat.)±2.3(syst.)) MeV/c2 and (47.0-14.8+31.3(stat.)±4.6(syst.)) MeV, respectively. The mass, width, and quantum numbers of this enhancement are consistent with the charmoniumlike state at 4626 MeV/c2 recently reported by Belle in e+e-→Ds+Ds1(2536)-+c.c. The product of the e+e-→Ds+Ds2∗(2573)-+c.c. cross section and the branching fraction of Ds2∗(2573)-→D¯0K- is measured from Ds+Ds2∗(2573)- threshold to 5.6 GeV.
KW - BELLE
UR - http://www.scopus.com/inward/record.url?scp=85087712842&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.101.091101
DO - 10.1103/PhysRevD.101.091101
M3 - Article
AN - SCOPUS:85087712842
VL - 101
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 9
M1 - 091101
ER -
ID: 25610994