Loading...
research article
Observation of an alternative chi(c0)(2P) candidate in e(+)e(-)-> J/psi D(D)over-bar
2017
We perform a full amplitude analysis of the process e(+)e(-)-> J/psi D (D) over bar, where D refers to either D-0 or D+. A new charmoniumlike state X*(3860) that decays to D (D) over bar is observed with a significance of 6.5 sigma. Its mass is (3862(-32)(+26) (+40)(-13) )MeV= c(2), and its width is (201(-67) (+154)(-82) (+88)) MeV. The J(PC) = 0(++) hypothesis is favored over the 2(++) hypothesis at the level of 2.5s. The analysis is based on the 980 fb(-1) data sample collected by the Belle detector at the asymmetric-energy e(+)e(-)collider KEKB.
Type
research article
Web of Science ID
WOS:000403493200002
Authors
Chilikin, K.
•
Adachi, I.
•
Aihara, H.
•
Al Said, S.
•
Asner, D. M.
•
Aulchenko, V.
•
Ayad, R.
•
Babu, V.
•
Badhrees, I.
•
Bakich, A. M.
Corporate authors
Belle Collaboration
Publication date
2017
Publisher
Published in
Volume
95
Issue
11
Article Number
112003
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
July 10, 2017
Use this identifier to reference this record