Precise measurement of the e+e- → π+π-(γ) cross section with the initial-state radiation method at BABAR

被引：187
|
作者：
Lees, J. P. [1 ]
Poireau, V. [1 ]
Tisserand, V. [1 ]
Garra Tico, J. [2 ]
Grauges, E. [2 ]
Palano, A. [3 ,4 ]
Eigen, G. [5 ]
Stugu, B. [5 ]
Brown, D. N. [6 ,43 ]
Kerth, L. T. [6 ]
Kolomensky, Yu. G. [6 ]
Lynch, G. [6 ]
Koch, H. [7 ]
Schroeder, T. [7 ]
Asgeirsson, D. J. [8 ]
Hearty, C. [8 ]
Mattison, T. S. [8 ]
McKenna, J. A. [8 ]
Khan, A. [9 ]
Blinov, V. E. [10 ]
Buzykaev, A. R. [10 ]
Druzhinin, V. P. [10 ]
Golubev, V. B. [10 ]
Kravchenko, E. A. [10 ]
Onuchin, A. P. [10 ]
Serednyakov, S. I. [10 ]
Skovpen, Yu. I. [10 ]
Solodov, E. P. [10 ]
Todyshev, K. Yu. [10 ]
Yushkov, A. N. [10 ]
Bondioli, M. [11 ]
Kirkby, D. [11 ]
Lankford, A. J. [11 ]
Mandelkern, M. [11 ]
Atmacan, H. [12 ]
Gary, J. W. [12 ]
Liu, F. [12 ]
Long, O. [12 ]
Vitug, G. M. [12 ]
Campagnari, C. [13 ]
Hong, T. M. [13 ]
Kovalskyi, D. [13 ]
Richman, J. D. [13 ]
West, C. A. [13 ]
Eisner, A. M. [14 ]
Kroseberg, J. [14 ]
Lockman, W. S. [14 ]
Martinez, A. J. [14 ]
Schumm, B. A. [14 ]
Seiden, A. [14 ]
机构：
[1] Univ Savoie, LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France
[2] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain
[3] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[4] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy
[5] Univ Bergen, Inst Phys, N-5007 Bergen, Norway
[6] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[7] Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany
[8] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada
[9] Brunel Univ, Uxbridge UB8 3PH, Middx, England
[10] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[11] Univ Calif Irvine, Irvine, CA 92697 USA
[12] Univ Calif Riverside, Riverside, CA 92521 USA
[13] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA
[14] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA
[15] CALTECH, Pasadena, CA 91125 USA
[16] Univ Cincinnati, Cincinnati, OH 45221 USA
[17] Univ Colorado, Boulder, CO 80309 USA
[18] Colorado State Univ, Ft Collins, CO 80523 USA
[19] Tech Univ Dortmund, Fak Phys, D-44221 Dortmund, Germany
[20] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany
[21] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
[22] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland
[23] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy
[24] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy
[25] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[26] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy
[27] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy
[28] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India
[29] Harvard Univ, Cambridge, MA 02138 USA
[30] Harvey Mudd Coll, Claremont, CA 91711 USA
[31] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany
[32] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany
[33] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England
[34] Univ Iowa, Iowa City, IA 52242 USA
[35] Iowa State Univ, Ames, IA 50011 USA
[36] Johns Hopkins Univ, Baltimore, MD 21218 USA
[37] CNRS, IN2P3, Lab Accerateur Lineare, F-91898 Orsay, France
[38] Univ Paris 11, Ctr Sci Orsay, F-91898 Orsay, France
[39] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[40] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England
[41] Univ London, London E1 4NS, England
[42] Univ London Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England
[43] Univ Louisville, Louisville, KY 40292 USA
[44] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany
[45] Univ Manchester, Manchester M13 9PL, Lancs, England
[46] Univ Maryland, College Pk, MD 20742 USA
[47] Univ Massachusetts, Amherst, MA 01003 USA
[48] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA
[49] McGill Univ, Montreal, PQ H3A 2T8, Canada
[50] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy
来源：
PHYSICAL REVIEW D | 2012年 / 86卷 / 03期
基金：
美国国家科学基金会; 英国科学技术设施理事会; 加拿大自然科学与工程研究理事会;
关键词：
PION FORM-FACTOR; MAGNETIC-MOMENT; ENERGY-RANGE; MONTE-CARLO; B-FACTORIES; MUON; TAU; RETURN; MODEL; G-2;
D O I：
10.1103/PhysRevD.86.032013
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A precise measurement of the cross section of the process e(+)e(-) -> pi(+)pi(-) (gamma) from threshold to an energy of 3 GeV is obtained with the initial-state radiation (ISR) method using 232 fb(-1) of data collected with the BABAR detector at e(+)e(-) center-of-mass energies near 10.6 GeV. The ISR luminosity is determined from a study of the leptonic process e(+)e(-) -> mu(+)mu(-) (gamma)gamma(ISR), which is found to agree with the next-to-leading-order QED prediction to within 1.1%. The cross section for the process e(+)e(-) -> pi(+)pi(-) (gamma) is obtained with a systematic uncertainty of 0.5% in the dominant rho resonance region. The leading-order hadronic contribution to the muon magnetic anomaly calculated using the measured pi pi cross section from threshold to 1.8 GeV is (514.1 +/- 2.2(stat) +/- 3.1(sys)) x 10(-10).
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页数：49
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