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Title: Measurement of initial-state–final-state radiation interference in the processes e + e μ + μ γ and e + e π + π γ [Measurement of ISR-FSR interference in the processes e + e μ + μ γ and e + e π + π γ ]

Abstract

Charge asymmetry in the processes e +e → μ +μ γ and e +e → π +π γ is measured using 232 fb –1 of data collected with the BABAR detector at e +e center-of-mass energies near 10.58 GeV. An observable is introduced and shown to be very robust against detector asymmetries while keeping a large sensitivity to the physical charge asymmetry that results from the interference between initial- and final-state radiation (FSR). The asymmetry is determined as a function of the invariant mass of the final-state tracks from production threshold to a few GeV/c 2. It is compared to the expectation from QED for e +e → μ +μ γ, and from theoretical models for e +e → π +π γ. A clear interference pattern is observed in e +e → π +π γ, particularly in the vicinity of the f 2(1270) resonance. As a result, the inferred rate of lowest-order FSR production is consistent with the QED expectation for e +e → μ +μ γ, and is negligibly small for e +e → π +π γ.

Authors:
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Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
The BABAR Collaboration
OSTI Identifier:
1259207
Alternate Identifier(s):
OSTI ID: 1224581; OSTI ID: 1392975
Report Number(s):
SLAC-PUB-16361
Journal ID: ISSN 1550-7998; PRVDAQ; arXiv:1508.04008
Grant/Contract Number:  
AC02-76SF00515; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 92; Journal Issue: 7; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Experiment-HEP; HEPEX

Citation Formats

Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Stugu, B., Brown, D. N., Kerth, L. T., Kolomensky, Yu. G., Lee, M. J., Lynch, G., Koch, H., Schroeder, T., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Khan, A., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Lankford, A. J., Dey, B., Gary, J. W., Long, O., Franco Sevilla, M., Hong, T. M., Kovalskyi, D., Richman, J. D., West, C. A., Eisner, A. M., Lockman, W. S., Panduro Vazquez, W., Schumm, B. A., Seiden, A., Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Miyashita, T. S., Ongmongkolkul, P., Porter, F. C., Röhrken, M., Andreassen, R., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Ford, W. T., Smith, J. G., Wagner, S. R., Ayad, R., Toki, W. H., Spaan, B., Bernard, D., Verderi, M., Playfer, S., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Piemontese, L., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Zallo, A., Contri, R., Monge, M. R., Passaggio, S., Patrignani, C., Bhuyan, B., Prasad, V., Adametz, A., Uwer, U., Lacker, H. M., Mallik, U., Chen, C., Cochran, J., Prell, S., Ahmed, H., Gritsan, A. V., Arnaud, N., Davier, M., Derkach, D., Grosdidier, G., Le Diberder, F., Lutz, A. M., Malaescu, B., Roudeau, P., Stocchi, A., Wang, L. L., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Fry, J. R., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Brown, D. N., Davis, C. L., Denig, A. G., Fritsch, M., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Hamilton, B., Jawahery, A., Roberts, D. A., Cowan, R., Cheaib, R., Patel, P. M., Robertson, S. H., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D. J., Simard, M., Taras, P., De Nardo, G., Onorato, G., Sciacca, C., Raven, G., Jessop, C. P., LoSecco, J. M., Honscheid, K., Kass, R., Margoni, M., Morandin, M., Posocco, M., Rotondo, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Briand, H., Calderini, G., Chauveau, J., Leruste, Ph., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Angelini, C., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Lopes Pegna, D., Olsen, J., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Gaspero, M., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Hess, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Olaiya, E. O., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Bard, D. J., Cartaro, C., Convery, M. R., Dorfan, J., Dubois-Felsmann, G. P., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., Luth, V., MacFarlane, D. B., Muller, D. R., Neal, H., Pulliam, T., Ratcliff, B. N., Roodman, A., Schindler, R. H., Snyder, A., Su, D., Sullivan, M. K., Va’vra, J., Wisniewski, W. J., Wulsin, H. W., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Banerjee, Sw., Beaulieu, A., Bernlochner, F. U., Choi, H. H. F., King, G. J., Kowalewski, R., Lewczuk, M. J., Lueck, T., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Band, H. R., Dasu, S., Pan, Y., Prepost, R., and Wu, S. L. Measurement of initial-state–final-state radiation interference in the processes e+e–→μ+μ–γ and e+e–→π+π–γ [Measurement of ISR-FSR interference in the processes e+e–→μ+μ–γ and e+e–→π+π–γ]. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.92.072015.
Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Stugu, B., Brown, D. N., Kerth, L. T., Kolomensky, Yu. G., Lee, M. J., Lynch, G., Koch, H., Schroeder, T., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Khan, A., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Lankford, A. J., Dey, B., Gary, J. W., Long, O., Franco Sevilla, M., Hong, T. M., Kovalskyi, D., Richman, J. D., West, C. A., Eisner, A. M., Lockman, W. S., Panduro Vazquez, W., Schumm, B. A., Seiden, A., Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Miyashita, T. S., Ongmongkolkul, P., Porter, F. C., Röhrken, M., Andreassen, R., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Ford, W. T., Smith, J. G., Wagner, S. R., Ayad, R., Toki, W. H., Spaan, B., Bernard, D., Verderi, M., Playfer, S., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Piemontese, L., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Zallo, A., Contri, R., Monge, M. R., Passaggio, S., Patrignani, C., Bhuyan, B., Prasad, V., Adametz, A., Uwer, U., Lacker, H. M., Mallik, U., Chen, C., Cochran, J., Prell, S., Ahmed, H., Gritsan, A. V., Arnaud, N., Davier, M., Derkach, D., Grosdidier, G., Le Diberder, F., Lutz, A. M., Malaescu, B., Roudeau, P., Stocchi, A., Wang, L. L., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Fry, J. R., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Brown, D. N., Davis, C. L., Denig, A. G., Fritsch, M., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Hamilton, B., Jawahery, A., Roberts, D. A., Cowan, R., Cheaib, R., Patel, P. M., Robertson, S. H., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D. J., Simard, M., Taras, P., De Nardo, G., Onorato, G., Sciacca, C., Raven, G., Jessop, C. P., LoSecco, J. M., Honscheid, K., Kass, R., Margoni, M., Morandin, M., Posocco, M., Rotondo, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Briand, H., Calderini, G., Chauveau, J., Leruste, Ph., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Angelini, C., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Lopes Pegna, D., Olsen, J., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Gaspero, M., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Hess, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Olaiya, E. O., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Bard, D. J., Cartaro, C., Convery, M. R., Dorfan, J., Dubois-Felsmann, G. P., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., Luth, V., MacFarlane, D. B., Muller, D. R., Neal, H., Pulliam, T., Ratcliff, B. N., Roodman, A., Schindler, R. H., Snyder, A., Su, D., Sullivan, M. K., Va’vra, J., Wisniewski, W. J., Wulsin, H. W., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Banerjee, Sw., Beaulieu, A., Bernlochner, F. U., Choi, H. H. F., King, G. J., Kowalewski, R., Lewczuk, M. J., Lueck, T., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Band, H. R., Dasu, S., Pan, Y., Prepost, R., & Wu, S. L. Measurement of initial-state–final-state radiation interference in the processes e+e–→μ+μ–γ and e+e–→π+π–γ [Measurement of ISR-FSR interference in the processes e+e–→μ+μ–γ and e+e–→π+π–γ]. United States. doi:10.1103/PhysRevD.92.072015.
Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Stugu, B., Brown, D. N., Kerth, L. T., Kolomensky, Yu. G., Lee, M. J., Lynch, G., Koch, H., Schroeder, T., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Khan, A., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Lankford, A. J., Dey, B., Gary, J. W., Long, O., Franco Sevilla, M., Hong, T. M., Kovalskyi, D., Richman, J. D., West, C. A., Eisner, A. M., Lockman, W. S., Panduro Vazquez, W., Schumm, B. A., Seiden, A., Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Miyashita, T. S., Ongmongkolkul, P., Porter, F. C., Röhrken, M., Andreassen, R., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Ford, W. T., Smith, J. G., Wagner, S. R., Ayad, R., Toki, W. H., Spaan, B., Bernard, D., Verderi, M., Playfer, S., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Piemontese, L., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Zallo, A., Contri, R., Monge, M. R., Passaggio, S., Patrignani, C., Bhuyan, B., Prasad, V., Adametz, A., Uwer, U., Lacker, H. M., Mallik, U., Chen, C., Cochran, J., Prell, S., Ahmed, H., Gritsan, A. V., Arnaud, N., Davier, M., Derkach, D., Grosdidier, G., Le Diberder, F., Lutz, A. M., Malaescu, B., Roudeau, P., Stocchi, A., Wang, L. L., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Fry, J. R., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Brown, D. N., Davis, C. L., Denig, A. G., Fritsch, M., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Hamilton, B., Jawahery, A., Roberts, D. A., Cowan, R., Cheaib, R., Patel, P. M., Robertson, S. H., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D. J., Simard, M., Taras, P., De Nardo, G., Onorato, G., Sciacca, C., Raven, G., Jessop, C. P., LoSecco, J. M., Honscheid, K., Kass, R., Margoni, M., Morandin, M., Posocco, M., Rotondo, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Briand, H., Calderini, G., Chauveau, J., Leruste, Ph., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Angelini, C., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Lopes Pegna, D., Olsen, J., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Gaspero, M., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Hess, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Olaiya, E. O., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Bard, D. J., Cartaro, C., Convery, M. R., Dorfan, J., Dubois-Felsmann, G. P., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., Luth, V., MacFarlane, D. B., Muller, D. R., Neal, H., Pulliam, T., Ratcliff, B. N., Roodman, A., Schindler, R. H., Snyder, A., Su, D., Sullivan, M. K., Va’vra, J., Wisniewski, W. J., Wulsin, H. W., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Banerjee, Sw., Beaulieu, A., Bernlochner, F. U., Choi, H. H. F., King, G. J., Kowalewski, R., Lewczuk, M. J., Lueck, T., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Band, H. R., Dasu, S., Pan, Y., Prepost, R., and Wu, S. L. Wed . "Measurement of initial-state–final-state radiation interference in the processes e+e–→μ+μ–γ and e+e–→π+π–γ [Measurement of ISR-FSR interference in the processes e+e–→μ+μ–γ and e+e–→π+π–γ]". United States. doi:10.1103/PhysRevD.92.072015. https://www.osti.gov/servlets/purl/1259207.
@article{osti_1259207,
title = {Measurement of initial-state–final-state radiation interference in the processes e+e–→μ+μ–γ and e+e–→π+π–γ [Measurement of ISR-FSR interference in the processes e+e–→μ+μ–γ and e+e–→π+π–γ]},
author = {Lees, J. P. and Poireau, V. and Tisserand, V. and Grauges, E. and Palano, A. and Eigen, G. and Stugu, B. and Brown, D. N. and Kerth, L. T. and Kolomensky, Yu. G. and Lee, M. J. and Lynch, G. and Koch, H. and Schroeder, T. and Hearty, C. and Mattison, T. S. and McKenna, J. A. and So, R. Y. and Khan, A. and Blinov, V. E. and Buzykaev, A. R. and Druzhinin, V. P. and Golubev, V. B. and Kravchenko, E. A. and Onuchin, A. P. and Serednyakov, S. I. and Skovpen, Yu. I. and Solodov, E. P. and Todyshev, K. Yu. and Lankford, A. J. and Dey, B. and Gary, J. W. and Long, O. and Franco Sevilla, M. and Hong, T. M. and Kovalskyi, D. and Richman, J. D. and West, C. A. and Eisner, A. M. and Lockman, W. S. and Panduro Vazquez, W. and Schumm, B. A. and Seiden, A. and Chao, D. S. and Cheng, C. H. and Echenard, B. and Flood, K. T. and Hitlin, D. G. and Kim, J. and Miyashita, T. S. and Ongmongkolkul, P. and Porter, F. C. and Röhrken, M. and Andreassen, R. and Huard, Z. and Meadows, B. T. and Pushpawela, B. G. and Sokoloff, M. D. and Sun, L. and Ford, W. T. and Smith, J. G. and Wagner, S. R. and Ayad, R. and Toki, W. H. and Spaan, B. and Bernard, D. and Verderi, M. and Playfer, S. and Bettoni, D. and Bozzi, C. and Calabrese, R. and Cibinetto, G. and Fioravanti, E. and Garzia, I. and Luppi, E. and Piemontese, L. and Santoro, V. and Calcaterra, A. and de Sangro, R. and Finocchiaro, G. and Martellotti, S. and Patteri, P. and Peruzzi, I. M. and Piccolo, M. and Zallo, A. and Contri, R. and Monge, M. R. and Passaggio, S. and Patrignani, C. and Bhuyan, B. and Prasad, V. and Adametz, A. and Uwer, U. and Lacker, H. M. and Mallik, U. and Chen, C. and Cochran, J. and Prell, S. and Ahmed, H. and Gritsan, A. V. and Arnaud, N. and Davier, M. and Derkach, D. and Grosdidier, G. and Le Diberder, F. and Lutz, A. M. and Malaescu, B. and Roudeau, P. and Stocchi, A. and Wang, L. L. and Wormser, G. and Lange, D. J. and Wright, D. M. and Coleman, J. P. and Fry, J. R. and Gabathuler, E. and Hutchcroft, D. E. and Payne, D. J. and Touramanis, C. and Bevan, A. J. and Di Lodovico, F. and Sacco, R. and Cowan, G. and Brown, D. N. and Davis, C. L. and Denig, A. G. and Fritsch, M. and Gradl, W. and Griessinger, K. and Hafner, A. and Schubert, K. R. and Barlow, R. J. and Lafferty, G. D. and Cenci, R. and Hamilton, B. and Jawahery, A. and Roberts, D. A. and Cowan, R. and Cheaib, R. and Patel, P. M. and Robertson, S. H. and Neri, N. and Palombo, F. and Cremaldi, L. and Godang, R. and Summers, D. J. and Simard, M. and Taras, P. and De Nardo, G. and Onorato, G. and Sciacca, C. and Raven, G. and Jessop, C. P. and LoSecco, J. M. and Honscheid, K. and Kass, R. and Margoni, M. and Morandin, M. and Posocco, M. and Rotondo, M. and Simi, G. and Simonetto, F. and Stroili, R. and Akar, S. and Ben-Haim, E. and Bomben, M. and Bonneaud, G. R. and Briand, H. and Calderini, G. and Chauveau, J. and Leruste, Ph. and Marchiori, G. and Ocariz, J. and Biasini, M. and Manoni, E. and Rossi, A. and Angelini, C. and Batignani, G. and Bettarini, S. and Carpinelli, M. and Casarosa, G. and Chrzaszcz, M. and Forti, F. and Giorgi, M. A. and Lusiani, A. and Oberhof, B. and Paoloni, E. and Rama, M. and Rizzo, G. and Walsh, J. J. and Lopes Pegna, D. and Olsen, J. and Smith, A. J. S. and Anulli, F. and Faccini, R. and Ferrarotto, F. and Ferroni, F. and Gaspero, M. and Pilloni, A. and Piredda, G. and Bünger, C. and Dittrich, S. and Grünberg, O. and Hess, M. and Leddig, T. and Voß, C. and Waldi, R. and Adye, T. and Olaiya, E. O. and Wilson, F. F. and Emery, S. and Vasseur, G. and Aston, D. and Bard, D. J. and Cartaro, C. and Convery, M. R. and Dorfan, J. and Dubois-Felsmann, G. P. and Dunwoodie, W. and Ebert, M. and Field, R. C. and Fulsom, B. G. and Graham, M. T. and Hast, C. and Innes, W. R. and Kim, P. and Leith, D. W. G. S. and Luitz, S. and Luth, V. and MacFarlane, D. B. and Muller, D. R. and Neal, H. and Pulliam, T. and Ratcliff, B. N. and Roodman, A. and Schindler, R. H. and Snyder, A. and Su, D. and Sullivan, M. K. and Va’vra, J. and Wisniewski, W. J. and Wulsin, H. W. and Purohit, M. V. and Wilson, J. R. and Randle-Conde, A. and Sekula, S. J. and Bellis, M. and Burchat, P. R. and Puccio, E. M. T. and Alam, M. S. and Ernst, J. A. and Gorodeisky, R. and Guttman, N. and Peimer, D. R. and Soffer, A. and Spanier, S. M. and Ritchie, J. L. and Schwitters, R. F. and Izen, J. M. and Lou, X. C. and Bianchi, F. and De Mori, F. and Filippi, A. and Gamba, D. and Lanceri, L. and Vitale, L. and Martinez-Vidal, F. and Oyanguren, A. and Albert, J. and Banerjee, Sw. and Beaulieu, A. and Bernlochner, F. U. and Choi, H. H. F. and King, G. J. and Kowalewski, R. and Lewczuk, M. J. and Lueck, T. and Nugent, I. M. and Roney, J. M. and Sobie, R. J. and Tasneem, N. and Gershon, T. J. and Harrison, P. F. and Latham, T. E. and Band, H. R. and Dasu, S. and Pan, Y. and Prepost, R. and Wu, S. L.},
abstractNote = {Charge asymmetry in the processes e+e– → μ+μ–γ and e+e– → π+π–γ is measured using 232 fb–1 of data collected with the BABAR detector at e+e– center-of-mass energies near 10.58 GeV. An observable is introduced and shown to be very robust against detector asymmetries while keeping a large sensitivity to the physical charge asymmetry that results from the interference between initial- and final-state radiation (FSR). The asymmetry is determined as a function of the invariant mass of the final-state tracks from production threshold to a few GeV/c2. It is compared to the expectation from QED for e+e– → μ+μ–γ, and from theoretical models for e+e– → π+π–γ. A clear interference pattern is observed in e+e– → π+π–γ, particularly in the vicinity of the f2(1270) resonance. As a result, the inferred rate of lowest-order FSR production is consistent with the QED expectation for e+e– → μ+μ–γ, and is negligibly small for e+e– → π+π–γ.},
doi = {10.1103/PhysRevD.92.072015},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 7,
volume = 92,
place = {United States},
year = {2015},
month = {10}
}

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Works referenced in this record:

Precise measurement of the e + e π + π ( γ ) cross section with the initial-state radiation method at BABAR
journal, August 2012


Radiative corrections to the resonant particle production
journal, July 1968


The BABAR detector
journal, February 2002

  • Aubert, B.; Bazan, A.; Boucham, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 479, Issue 1
  • DOI: 10.1016/S0168-9002(01)02012-5

Nucleon form factors, B-meson factories and the radiative return
journal, July 2004


Confronting spectral functions from ee annihilation and $\tau$ decays: consequences for the muon magnetic moment
journal, April 2003


Radiative return at $\Phi$ - and B-factories: FSR for muon pair production at next-to-leading order
journal, February 2005


Erratum: Pion pair production in e + e annihilation [Phys. Rev. D 73 , 094021 (2006)]
journal, May 2007


Review of Particle Physics
journal, July 2012


KORALB — an upgrade to version 2.4
journal, March 1995


Spectroscopy at B-Factories Using hard Photon Emission
journal, December 1999

  • Benayoun, M.; Eidelman, S. I.; Ivanchenko, V. N.
  • Modern Physics Letters A, Vol. 14, Issue 37
  • DOI: 10.1142/S021773239900273X

The precision Monte Carlo event generator for two-fermion final states in collisions
journal, August 2000


ππ Phase-shift analysis from 600 to 1900 MeV
journal, November 1973


Complete QED NLO contributions to the reaction e + e − → μ + μ − γ and their implementation in the event generator PHOKHARA
journal, February 2014

  • Campanario, F.; Czyż, H.; Gluza, J.
  • Journal of High Energy Physics, Vol. 2014, Issue 2
  • DOI: 10.1007/JHEP02(2014)114

Four pion final states with tagged photons at electron positron colliders
journal, January 2001


Radiative corrections for pion and kaon production at e + e colliders of energies below 2 GeV
journal, October 1997

  • Arbuzov, Andrej B.; Kuraev, Eduard A.; Astakhov, Vadim A.
  • Journal of High Energy Physics, Vol. 1997, Issue 10
  • DOI: 10.1088/1126-6708/1997/10/006

Exclusive production of pion pairs in γ*γ collisions at large Q2
journal, September 2000


Large angle QED processes at e + e colliders at energies below 3 GeV
journal, October 1997

  • Arbuzov, Andrej B.; Kuraev, Eduard A.; Fedotovich, Gennadi V.
  • Journal of High Energy Physics, Vol. 1997, Issue 10
  • DOI: 10.1088/1126-6708/1997/10/001

Time-integrated luminosity recorded by the BABARdetector at the PEP-II<mml:math altimg="si0120.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msup><mml:mrow><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mrow><mml:mo>-</mml:mo></mml:mrow></mml:msup></mml:math> collider
journal, October 2013

  • Lees, J. P.; Poireau, V.; Tisserand, V.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 726
  • DOI: 10.1016/j.nima.2013.04.029

The BaBar detector: Upgrades, operation and performance
journal, November 2013

  • Aubert, B.; Barate, R.; Boutigny, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 729
  • DOI: 10.1016/j.nima.2013.05.107

Charge asymmetry and radiative ϕ decays
journal, March 2005


BHAGEN95: a Monte Carlo program for Bhabha scattering at LEP1/SLC and LEP2 energies
journal, May 1997

  • Caffo, M.; Czyz, H.; Remiddi, E.
  • Il Nuovo Cimento A, Vol. 110, Issue 5
  • DOI: 10.1007/BF03035898

Measuring σ(e+e−→hadrons) using tagged photons
journal, July 1999


Photos — a universal Monte Carlo for QED radiative corrections in decays
journal, July 1991


The Physics of the B Factories
journal, November 2014


High-energy-physics event generation with PYTHIA 5.7 and JETSET 7.4
journal, August 1994


Nonresonant asymmetry in {ie305-1}
journal, June 1974

  • Brown, R. W.; Mikaelian, K. O.
  • Lettere al Nuovo Cimento, Vol. 10, Issue 7
  • DOI: 10.1007/BF02819383

Precision Measurements of the Timelike Electromagnetic Form Factors of Pion, Kaon, and Proton
journal, December 2005


Precise Measurement of the e + e π + π ( γ ) Cross Section with the Initial State Radiation Method at BABAR
journal, December 2009


Distributions in the process e+e− → μ+μ−(γ)
journal, January 1981


Pion pair production in e + e annihilation
journal, May 2006


Hadronic cross sections in electron-positron annihilation with tagged photon
journal, December 1998

  • Arbuzov, Andrej B.; Kuraev, Eduard A.; Merenkov, Nikolay P.
  • Journal of High Energy Physics, Vol. 1998, Issue 12
  • DOI: 10.1088/1126-6708/1998/12/009