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Measurement of e(+)e(-) -˃ gamma chi(cJ) via initial state radiation at Belle

Title
Measurement of e(+)e(-) -˃ gamma chi(cJ) via initial state radiation at Belle
Author
천병구
Keywords
CROSS-SECTION; ANNIHILATION; KEKB
Issue Date
2015-07
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v. 92, NO 1, Page. 12011-12011
Abstract
The process e(+)e(-) -˃ gamma chi(cJ) (J = 1, 2) is studied via initial state radiation using 980 fb(-1) of data at and around the Gamma(nS) (n = 1, 2, 3, 4, 5) resonances collected with the Belle detector at the KEKB asymmetricenergy e(+)e(-) collider. No significant signal is observed except from psi(2S) decays. Upper limits on the cross sections between root s = 3.80 and 5.56 GeV are determined at the 90% credibility level, which range from a few pb to a few tens of pb. We also set upper limits on the decay rate of the vector charmonium [psi(4040), psi(4160), and psi(4415)] and charmoniumlike [Y(4260), Y(4360), and Y(4660)] states to gamma chi(cJ).
URI
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.012011http://hdl.handle.net/20.500.11754/26103
ISSN
2470-0010; 2470-0029
DOI
10.1103/PhysRevD.92.012011
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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