TY - JOUR AU - 천병구 DA - 2017/06 PY - 2017 UR - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.95.112003 UR - https://repository.hanyang.ac.kr/handle/20.500.11754/114428 AB - 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. PB - AMER PHYSICAL SOC KW - CROSS-SECTION KW - BELLE KW - IDENTIFICATION KW - DETECTOR KW - MODEL KW - KEKB TI - Observation of an alternative chi(c0)(2P) candidate in e(+)e(-)-˃ J/psi D(D)over-bar IS - 11 VL - 95 DO - 10.1103/PhysRevD.95.112003 T2 - PHYSICAL REVIEW D ER -