Scholars@Duke publication: Study of B ±→K ±(K SKπ) 0 decay and determination of η c and η c(2S) parameters

Study of B ±→K ±(K SKπ) 0 decay and determination of η c and η c(2S) parameters

Publication , Journal Article

Vinokurova, A; Kuzmin, A; Eidelman, S; Arinstein, K; Aulchenko, V; Aushev, T; Bakich, AM; Balagura, V; Barberio, E; Belous, K; Bhardwaj, V ...

Published in: Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

December 6, 2011

Published version (DOI)

We report the results of a study of B ^±→K ^±η c and B ^±→K ^±η c(2S) decays followed by η c and η c(2S) decays to (K SKπ) ⁰. The results are obtained from a data sample containing 535 million BB --meson pairs collected by the Belle experiment at the KEKB e ⁺e ^- collider. We measure the products of the branching fractions B(B±→K±ηc)B(ηc→KSK±π∓)=(26.7±1.4(stat)-2.6+2.9(syst)±4.9(model))×10-6 and B(B±→K±ηc(2S))B(ηc(2S)→KSK±π∓)=(3.4-1.5+2.2(stat+model)-0.4+0.5(syst))×10-6. Interference with the non-resonant component leads to significant model uncertainty in the measurement of these product branching fractions. Our analysis accounts for this interference and allows the model uncertainty to be reduced. We also obtain the following charmonia masses and widths: M(ηc)=(2985.4±1.5(stat)-2.0+0.5(syst)) MeV/c2, Γ(ηc)=(35.1±3.1(stat)-1.6+1.0(syst)) MeV/c2, M(ηc(2S))=(3636.1-4.2+3.9(stat+model)-2.0+0.7(syst)) MeV/c2, Γ(ηc(2S))=(6.6-5.1+8.4(stat+model)-0.9+2.6(syst)) MeV/c2. © 2011 Elsevier B.V.

Duke Scholars

Author Anselm G. Vossen Physics

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2011.11.014

ISSN

0370-2693

Publication Date

December 6, 2011

Volume

706

Issue

2-3

Start / End Page

139 / 149

Related Subject Headings

Nuclear & Particles Physics
51 Physical sciences
49 Mathematical sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences
0105 Mathematical Physics

Citation

APA

Chicago

ICMJE

MLA

NLM

Vinokurova, A., Kuzmin, A., Eidelman, S., Arinstein, K., Aulchenko, V., Aushev, T., … Sakai, Y. (2011). Study of B ±→K ±(K SKπ) 0 decay and determination of η c and η c(2S) parameters. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 706(2–3), 139–149. https://doi.org/10.1016/j.physletb.2011.11.014

Vinokurova, A., A. Kuzmin, S. Eidelman, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, et al. “Study of B ±→K ±(K SKπ) 0 decay and determination of η c and η c(2S) parameters.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 706, no. 2–3 (December 6, 2011): 139–49. https://doi.org/10.1016/j.physletb.2011.11.014.

Vinokurova A, Kuzmin A, Eidelman S, Arinstein K, Aulchenko V, Aushev T, et al. Study of B ±→K ±(K SKπ) 0 decay and determination of η c and η c(2S) parameters. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2011 Dec 6;706(2–3):139–49.

Vinokurova, A., et al. “Study of B ±→K ±(K SKπ) 0 decay and determination of η c and η c(2S) parameters.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 706, no. 2–3, Dec. 2011, pp. 139–49. Scopus, doi:10.1016/j.physletb.2011.11.014.

Vinokurova A, Kuzmin A, Eidelman S, Arinstein K, Aulchenko V, Aushev T, Bakich AM, Balagura V, Barberio E, Belous K, Bhardwaj V, Bondar A, Bozek A, Bračko M, Brodzicka J, Browder TE, Chang MC, Chao Y, Chen A, Chen P, Cheon BG, Chistov R, Cho IS, Cho K, Choi SK, Choi Y, Dalseno J, Danilov M, Doležal Z, Epifanov D, Gaur V, Gabyshev N, Garmash A, Golob B, Ha H, Haba J, Hayashii H, Horii Y, Hoshi Y, Hou WS, Hsiung YB, Hyun HJ, Iijima T, Inami K, Ishikawa A, Itoh R, Iwabuchi M, Iwashita T, Julius T, Kang JH, Kapusta P, Kawasaki T, Kiesling C, Kim HJ, Kim HO, Kim MJ, Kim YJ, Kinoshita K, Ko BR, Križan P, Kumar R, Kumita T, Kwon YJ, Kyeong SH, Lee MJ, Lee SH, Li J, Li Y, Lim CL, Liu C, Liventsev D, Louvot R, Matvienko D, Matyja A, McOnie S, Miyabayashi K, Miyata H, Miyazaki Y, Mizuk R, Mohanty GB, Moll A, Nakano E, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Ohshima T, Okuno S, Olsen SL, Pakhlov P, Pakhlova G, Park CW, Pestotnik R, Petrič M, Piilonen LE, Poluektov A, Röhrken M, Ryu S, Sahoo H, Sakai Y. Study of B ±→K ±(K SKπ) 0 decay and determination of η c and η c(2S) parameters. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2011 Dec 6;706(2–3):139–149.

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2011.11.014

ISSN

0370-2693

Publication Date

December 6, 2011

Volume

706

Issue

2-3

Start / End Page

139 / 149

Related Subject Headings

Nuclear & Particles Physics
51 Physical sciences
49 Mathematical sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences
0105 Mathematical Physics