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@ARTICLE{Jia:416889,
author = {Jia, S. and Wang, X. L. and Shen, C. P. and Yuan, C. Z. and
Adachi, I. and Aihara, H. and Al Said, S. and Asner, D. M.
and Atmacan, H. and Aulchenko, V. and Aushev, T. and Ayad,
R. and Babu, V. and Bansal, V. and Behera, P. and Beleño,
C. and Berger, M. and Bhuyan, B. and Bilka, T. and Biswal,
J. and Bobrov, A. and Bozek, A. and Bračko, M. and Browder,
T. E. and Cao, L. and Červenkov, D. and Chang, P. and
Chekelian, V. and Chen, A. and Cheon, B. G. and Chilikin, K.
and Cho, K. and Choi, S.-K. and Choi, Y. and Choudhury, S.
and Cinabro, D. and Cunliffe, S. and Dash, N. and Di Carlo,
S. and Doležal, Z. and Dong, T. V. and Eidelman, S. and
Epifanov, D. and Fast, J. E. and Ferber, T. and Frey, A. and
Fulsom, B. G. and Garg, R. and Gaur, V. and Gabyshev, N. and
Garmash, A. and Gelb, M. and Giri, A. and Goldenzweig, P.
and Greenwald, D. and Haba, J. and Hayasaka, K. and
Hayashii, H. and Hou, W.-S. and Hsu, C.-L. and Iijima, T.
and Inami, K. and Inguglia, G. and Ishikawa, A. and Itoh, R.
and Iwasaki, M. and Iwasaki, Y. and Jacobs, W. W. and Jin,
Y. and Joffe, D. and Kahn, J. and Kaliyar, A. B. and Karyan,
G. and Kawasaki, T. and Kichimi, H. and Kiesling, C. and
Kim, D. Y. and Kim, H. J. and Kim, J. B. and Kim, S. H. and
Kinoshita, K. and Kodyš, P. and Korpar, S. and Kotchetkov,
D. and Križan, P. and Kroeger, R. and Krokovny, P. and
Kuhr, T. and Kulasiri, R. and Kumar, R. and Kuzmin, A. and
Kwon, Y.-J. and Lalwani, K. and Lange, J. S. and Lee, I. S.
and Lee, J. Y. and Lee, S. C. and Li, C. H. and Li, L. K.
and Li, Y. B. and Li Gioi, L. and Libby, J. and Liptak, Z.
and Liventsev, D. and Lu, P.-C. and Lubej, M. and
MacNaughton, J. and Masuda, M. and Matsuda, T. and
Matvienko, D. and Merola, M. and Miyata, H. and Mizuk, R.
and Mori, T. and Mussa, R. and Nakano, E. and Nakao, M. and
Nath, K. J. and Nayak, M. and Nisar, N. K. and Nishida, S.
and Ogawa, S. and Olsen, S. L. and Ono, H. and Onuki, Y. and
Ostrowicz, W. and Pakhlova, G. and Pal, B. and Pardi, S. and
Paul, S. and Pedlar, T. K. and Pestotnik, R. and Piilonen,
L. E. and Popov, V. and Prencipe, E. and Ritter, M. and
Rostomyan, A. and Russo, G. and Sakai, Y. and Salehi, M. and
Sandilya, S. and Santelj, L. and Sanuki, T. and Savinov, V.
and Schneider, O. and Schnell, G. and Schueler, J. and
Schwanda, C. and Seino, Y. and Senyo, K. and Sevior, M. E.
and Shibata, T.-A. and Shiu, J.-G. and Simon, F. and
Sokolov, A. and Solovieva, E. and Starič, M. and Stottler,
Z. S. and Strube, J. F. and Sumiyoshi, T. and Sutcliffe, W.
and Takizawa, M. and Tanida, K. and Tao, Y. and Tenchini, F.
and Uchida, M. and Uehara, S. and Uglov, T. and Unno, Y. and
Uno, S. and Urquijo, P. and Usov, Y. and Van Tonder, R. and
Varner, G. and Varvell, K. E. and Vorobyev, V. and Waheed,
E. and Wang, B. and Wang, C. H. and Wang, M.-Z. and Wang, P.
and Watanuki, S. and Widmann, E. and Won, E. and Yamamoto,
H. and Yang, S. B. and Ye, H. and Yin, J. H. and Yusa, Y.
and Zhang, Z. P. and Zhilich, V. and Zhukova, V. and
Zhulanov, V.},
collaboration = {{Belle Collaboration}},
title = {{O}bservation of $e^+e^- \to \gamma \chi_{c1}$ and search
for $e^+e^- \to \gamma \chi_{c0}, \gamma \chi_{c2},$ and
$\gamma\eta_c$ at $\sqrt{s}$ near 10.6 {G}e{V} at {B}elle},
reportid = {PUBDB-2018-05224, arXiv:1810.10291. Belle Preprint-2018-22.
KEK Preprint-2018-55},
year = {2018},
note = {8 pages, 4 figures, 30.11.2018},
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 GeV, 10.58 GeV, and 10.867 GeV, respectively,
we study the exclusive reactions $e^+e^-\to\gamma\chi_{cJ}$
($J = 0,~1,~2$) and $e^+e^-\to\gamma\eta_c$. A significant
$\gamma \chi_{c1}$ signal is observed for the first time at
$\sqrt{s}=10.58$ GeV with a significance of $5.1\sigma$
including systematic uncertainties. No significant excesses
for $\gamma \chi_{c0}$, $\gamma \chi_{c2}$, and $\gamma
\eta_c$ final states are found, and we set 90\\% credibility
level upper limits on the Born cross sections ($\sigma_{\rm
B}$) 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 $\sigma_{\rm
B}(e^+e^-\to\gamma\chi_{c1})$ is obtained.},
keywords = {electron positron: annihilation (INSPIRE) / electron
positron: colliding beams (INSPIRE) / channel cross section:
measured (INSPIRE) / energy dependence (INSPIRE) /
chi/c0(3415) (INSPIRE) / chi/c1(3510) (INSPIRE) /
chi/c2(3555) (INSPIRE) / photon: spectrum (INSPIRE) / BELLE
(INSPIRE) / exclusive reaction (INSPIRE) / KEK-B (INSPIRE) /
BES (INSPIRE) / channel cross section: upper limit (INSPIRE)
/ Born approximation (INSPIRE) / tree approximation
(INSPIRE) / experimental results (INSPIRE) / electron
positron --> photon chi/c0(3415) (INSPIRE) / electron
positron --> photon chi/c1(3510) (INSPIRE) / electron
positron --> photon chi/c2(3555) (INSPIRE) / 10.58 GeV-cms
(INSPIRE)},
cin = {Belle},
ddc = {530},
cid = {I:(DE-H253)Belle-20160426},
pnm = {611 - Fundamental Particles and Forces (POF3-611)},
pid = {G:(DE-HGF)POF3-611},
experiment = {EXP:(DE-H253)BELLE-20150101},
typ = {PUB:(DE-HGF)25 / PUB:(DE-HGF)29},
eprint = {1810.10291},
howpublished = {arXiv:1810.10291},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:1810.10291;\%\%$},
doi = {10.3204/PUBDB-2018-05224},
url = {https://bib-pubdb1.desy.de/record/416889},
}
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