@article{786c40c62bb946c48a8a58f0bad80d68,
title = "Observation of e+e- →γχc1 and search for e+e- →γχc0, γχc2, and γηc at s near 10.6 GeV at Belle OBSERVATION of e+e- →γχc1 ... S. JIA et al.",
abstract = "Using data samples of 89.5 fb-1, 711.0 fb-1, and 121.4 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at center-of-mass energies 10.52, 10.58, and 10.867 GeV, respectively, we study the exclusive reactions e+e-→γχcJ (J=0, 1, 2) and e+e-→γηc. A significant γχc1 signal is observed for the first time at s=10.58 GeV with a significance of 5.1σ including systematic uncertainties. No significant excesses for γχc0, γχc2, and γηc final states are found, and we set 90% credibility level upper limits on the Born cross sections (σB) at 10.52 GeV, 10.58 GeV, and 10.867 GeV. Together with cross sections measured by BESIII at lower center-of-mass energies, the energy dependency of σB(e+e-→γχc1) is obtained.",
author = "{The BELLE collaboration} and S. Jia and Wang, {X. L.} and Shen, {C. P.} and Yuan, {C. Z.} and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and V. Bansal and P. Behera and C. Bele{\~n}o and M. Berger and B. Bhuyan and T. Bilka and J. Biswal and A. Bobrov and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and L. Cao and D. {\v C}ervenkov and P. Chang and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Choi, {S. K.} and Y. Choi and S. Choudhury and D. Cinabro and S. Cunliffe and N. Dash and {Di Carlo}, S. and S. Eidelman and D. Epifanov and N. Gabyshev and A. Garmash and P. Krokovny and A. Kuzmin and D. Matvienko and Y. Usov and V. Vorobyev and V. Zhilich and V. Zhulanov",
year = "2018",
month = nov,
day = "30",
doi = "10.1103/PhysRevD.98.092015",
language = "English",
volume = "98",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "AMER PHYSICAL SOC",
number = "9",
}