e+e-→K+K-π+π-, K+K-π0π0 and K+K-K+K- cross sections measured with initial-state radiation

被引：128

作者：

Aubert, B. ^{[1
]}

Bona, M.

Boutigny, D.

Karyotakis, Y.

Lees, J. P.

Poireau, V.

Prudent, X.

Tisserand, V.

Zghiche, A.

Garra Tico, J.

Grauges, E.

Lopez, L.

Palano, A.

Eigen, G.

Stugu, B.

Sun, L.

Abrams, G. S.

Battaglia, M.

Brown, D. N.

Button-Shafer, J.

Cahn, R. N.

Groysman, Y.

Jacobsen, R. G.

Kadyk, J. A.

Kerth, L. T.

Kolomensky, Yu. G.

Kukartsev, G.

Pegna, D. Lopes

Lynch, G.

Mir, L. M.

Orimoto, T. J.

Ronan, M. T.

Tackmann, K.

Wenzel, W. A.

Sanchez, P. del Amo

Hawkes, C. M.

Watson, A. T.

Held, T.

Koch, H.

Lewandowski, B.

Pelizaeus, M.

Schroeder, T.

Steinke, M.

Walker, D.

Asgeirsson, D. J.

Cuhadar-Donszelmann, T.

Fulsom, B. G.

Hearty, C.

Knecht, N. S.

Mattison, T. S.

机构：

[1] CNRS, IN2P3, Phys Particules Lab, F-74941 Annecy Le Vieux, France

[2] Univ Savoie, F-74941 Annecy Le Vieux, France

[3] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain

[4] Ist Nazl Fis Nucl, I-70126 Bari, Italy

[5] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy

[6] Univ Bergen, Inst Phys, N-5007 Bergen, Norway

[7] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[8] Univ Calif Berkeley, Berkeley, CA 94720 USA

[9] Univ Birmingham, Birmingham B15 2TT, W Midlands, England

[10] Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany

[11] Univ Bristol, Bristol BS8 1TL, Avon, England

[12] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada

[13] Brunel Univ, Uxbridge UB8 3PH, Middx, England

[14] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[15] Univ Calif Irvine, Irvine, CA 92697 USA

[16] Univ Calif Los Angeles, Los Angeles, CA 90024 USA

[17] Univ Calif Riverside, Riverside, CA 92521 USA

[18] Univ Calif San Diego, La Jolla, CA 92093 USA

[19] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

[20] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA

[21] CALTECH, Pasadena, CA 91125 USA

[22] Univ Cincinnati, Cincinnati, OH 45221 USA

[23] Univ Colorado, Boulder, CO 80309 USA

[24] Colorado State Univ, Ft Collins, CO 80523 USA

[25] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany

[26] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany

[27] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France

[28] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland

[29] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy

[30] Ist Nazl Fis Nucl, I-44100 Ferrara, Italy

[31] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy

[32] Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[33] Harvard Univ, Cambridge, MA 02138 USA

[34] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[35] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England

[36] Univ Iowa, Iowa City, IA 52242 USA

[37] Iowa State Univ, Ames, IA 50011 USA

[38] Johns Hopkins Univ, Baltimore, MD 21218 USA

[39] Univ Karlsruhe, Inst Expt Kernphys, D-76021 Karlsruhe, Germany

[40] Univ Paris 11, Ctr Sci, F-91898 Orsay, France

[41] CNRS, IN2P3, Lab Accelerateur Lineaire, F-91898 Orsay, France

[42] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[43] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England

[44] Queen Mary Univ London, London E1 4NS, England

[45] Univ London Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England

[46] Univ Louisville, Louisville, KY 40292 USA

[47] Univ Manchester, Manchester M13 9PL, Lancs, England

[48] Univ Maryland, College Pk, MD 20742 USA

[49] Univ Massachusetts, Amherst, MA 01003 USA

[50] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW D | 2007年 / 76卷 / 01期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevD.76.012008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the processes e(+)e(-)-> K+K-pi(+)pi(-)gamma, K+K-pi(0)pi(0)gamma and K+K-K+K-gamma, where the photon is radiated from the initial state. About 34 600, 4400 and 2300 fully reconstructed events, respectively, are selected from 232 fb(-1) of BABAR data. The invariant mass of the hadronic final state defines the effective e(+)e(-) center-of-mass energy, so that the K+K-pi(+)pi(-)gamma data can be compared with direct measurements of the e(+)e(-)-> K+K-pi(+)pi(-) reaction; no direct measurements exist for the e(+)e(-)-> K+K-pi(0)pi(0) or e(+)e(-)-> K+K-K+K- reactions. Studying the structure of these events, we find contributions from a number of intermediate states, and we extract their cross sections where possible. In particular, we isolate the contribution from e(+)e(-)->phi(1020)f(0)(980) and study its structure near threshold. In the charmonium region, we observe the J/psi in all three final states and several intermediate states, as well as the psi(2S) in some modes, and measure the corresponding branching fractions. We see no signal for the Y(4260) and obtain an upper limit of B-Y(4260)->phi pi(+)pi(-)center dot Gamma(Y)(ee)< 0.4 eV at 90% C.L.

引用

页数：33

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