BABAR Collaboration (Including: Gershon, T. J., Harrison, P. F., Latham, Thomas and Puccio, E. M. T.). (2012) Search for resonances decaying to eta(c)pi(+) pi(-) in two-photon interactions. Physical Review D (Particles, Fields, Gravitation and Cosmology), Volume 86 (Number 9). Article number 092005 . doi:10.1103/PhysRevD.86.092005

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Abstract

We report a study of the process γγ→X→ηcπ+π-, where X stands for one of the resonances χc2(1P), ηc(2S), X(3872), X(3915), or χc2(2P). The analysis is performed with a data sample of 473.9  fb-1 collected with the BABAR detector at the PEP-II asymmetric-energy electron-positron collider. We do not observe a significant signal for any channel, and calculate 90% confidence-level upper limits on the products of branching fractions and two-photon widths ΓX→γγB(X→ηcπ+π-): 15.7 eV for χc2(1P), 133 eV for ηc(2S), 11.1 eV for X(3872) (assuming it to be a spin-2 state), 16 eV for X(3915) (assuming it to be a spin-2 state), and 18 eV for χc2(2P). We also report upper limits on the ratios of branching fractions B(ηc(2S)→ηcπ+π-)/B(ηc(2S)→KS0K+π-)<10.0 and B(χc2(1P)→ηcπ+π-)/B(χc2(1P)→KS0K+π-)<32.9 at the 90% confidence level.

Item Type:	Journal Article
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher:	American Physical Society
ISSN:	1550-7998
Official Date:	2012
Dates:	Date Event 2012 Published
Volume:	Volume 86
Number:	Number 9
Number of Pages:	10
Page Range:	Article number 092005
DOI:	10.1103/PhysRevD.86.092005
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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