Measurement of initial-state-final-state radiation interference in the processes e(+)e(-) -> mu(+)mu(-)gamma and e(+)e(-) -> pi(+)pi(-)gamma

Lees, J.P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D.N.; Kerth, L.T.; Kolomensky, Y.G.; Lee, M.J.; Lynch, G.; Koch, H.; Schroeder, T.; Hearty, C.; Mattison, T.S.; Mckenna, J.A.; R. Y., S.; Khan, A.; Blinov, V.E.; Buzykaev, A.R.; Druzhinin, V.P.; Golubev, V.B.; Kravchenko, E.A.; Onuchin, A.P.; Serednyakov, S.I.; Skovpen, Y.I.; Solodov, E.P.; Todyshev, K.Y.; 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.; Rohrken, 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, P.; 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.; Bunger, C.; Dittrich, S.; Grunberg, 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, S.; 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.; S. L., W.

doi:10.1103/PhysRevD.92.072015

Charge asymmetry in the processes e(+)e(-) -> mu(+)mu(-)gamma and e(+)e(-) -> pi(+)pi(-)gamma 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(-) -> mu(+)mu(-)gamma, and from theoretical models for e(+)e(-) -> pi(+)pi(-)gamma. A clear interference pattern is observed in e(+)e(-) -> pi(+)pi(-)gamma, particularly in the vicinity of the f(2)(1270) resonance. The inferred rate of lowest-order FSR production is consistent with the QED expectation for e(+)e(-) -> mu(+)mu(-)gamma, and is negligibly small for e(+)e(-) -> pi(+)pi(-)gamma.

Measurement of initial-state-final-state radiation interference in the processes e(+)e(-) -> mu(+)mu(-)gamma and e(+)e(-) -> pi(+)pi(-)gamma / J.P. Lees, V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, B. Stugu, D.N. Brown, L.T. Kerth, Y.G. Kolomensky, M.J. Lee, G. Lynch, H. Koch, T. Schroeder, C. Hearty, T.S. Mattison, J.A. Mckenna, R.Y. So, A. Khan, V.E. Blinov, A.R. Buzykaev, V.P. Druzhinin, V.B. Golubev, E.A. Kravchenko, A.P. Onuchin, S.I. Serednyakov, Y.I. Skovpen, E.P. Solodov, K.Y. Todyshev, A.J. Lankford, B. Dey, J.W. Gary, O. Long, M. Franco Sevilla, T.M. Hong, D. Kovalskyi, J.D. Richman, C.A. West, A.M. Eisner, W.S. Lockman, W. Panduro Vazquez, B.A. Schumm, A. Seiden, D.S. Chao, C.H. Cheng, B. Echenard, K.T. Flood, D.G. Hitlin, J. Kim, T.S. Miyashita, P. Ongmongkolkul, F.C. Porter, M. Rohrken, R. Andreassen, Z. Huard, B.T. Meadows, B.G. Pushpawela, M.D. Sokoloff, L. Sun, W.T. Ford, J.G. Smith, S.R. Wagner, R. Ayad, W.H. Toki, B. Spaan, D. Bernard, M. Verderi, S. Playfer, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Fioravanti, I. Garzia, E. Luppi, L. Piemontese, V. Santoro, A. Calcaterra, R. De Sangro, G. Finocchiaro, S. Martellotti, P. Patteri, I.M. Peruzzi, M. Piccolo, A. Zallo, R. Contri, M.R. Monge, S. Passaggio, C. Patrignani, B. Bhuyan, V. Prasad, A. Adametz, U. Uwer, H.M. Lacker, U. Mallik, C. Chen, J. Cochran, S. Prell, H. Ahmed, A.V. Gritsan, N. Arnaud, M. Davier, D. Derkach, G. Grosdidier, F. Le Diberder, A.M. Lutz, B. Malaescu, P. Roudeau, A. Stocchi, L.L. Wang, G. Wormser, D.J. Lange, D.M. Wright, J.P. Coleman, J.R. Fry, E. Gabathuler, D.E. Hutchcroft, D.J. Payne, C. Touramanis, A.J. Bevan, F. Di Lodovico, R. Sacco, G. Cowan, D.N. Brown, C.L. Davis, A.G. Denig, M. Fritsch, W. Gradl, K. Griessinger, A. Hafner, K.R. Schubert, R.J. Barlow, G.D. Lafferty, R. Cenci, B. Hamilton, A. Jawahery, D.A. Roberts, R. Cowan, R. Cheaib, P.M. Patel, S.H. Robertson, N. Neri, F. Palombo, L. Cremaldi, R. Godang, D.J. Summers, M. Simard, P. Taras, G. De Nardo, G. Onorato, C. Sciacca, G. Raven, C.P. Jessop, J.M. Losecco, K. Honscheid, R. Kass, M. Margoni, M. Morandin, M. Posocco, M. Rotondo, G. Simi, F. Simonetto, R. Stroili, S. Akar, E. Ben-Haim, M. Bomben, G.R. Bonneaud, H. Briand, G. Calderini, J. Chauveau, P. Leruste, G. Marchiori, J. Ocariz, M. Biasini, E. Manoni, A. Rossi, C. Angelini, G. Batignani, S. Bettarini, M. Carpinelli, G. Casarosa, M. Chrzaszcz, F. Forti, M.A. Giorgi, A. Lusiani, B. Oberhof, E. Paoloni, M. Rama, G. Rizzo, J.J. Walsh, D. Lopes Pegna, J. Olsen, A.J.S. Smith, F. Anulli, R. Faccini, F. Ferrarotto, F. Ferroni, M. Gaspero, A. Pilloni, G. Piredda, C. Bunger, S. Dittrich, O. Grunberg, M. Hess, T. Leddig, C. Voss, R. Waldi, T. Adye, E.O. Olaiya, F.F. Wilson, S. Emery, G. Vasseur, D. Aston, D.J. Bard, C. Cartaro, M.R. Convery, J. Dorfan, G.P. Dubois-Felsmann, W. Dunwoodie, M. Ebert, R.C. Field, B.G. Fulsom, M.T. Graham, C. Hast, W.R. Innes, P. Kim, D.W.G.S. Leith, S. Luitz, V. Luth, D.B. Macfarlane, D.R. Muller, H. Neal, T. Pulliam, B.N. Ratcliff, A. Roodman, R.H. Schindler, A. Snyder, D. Su, M.K. Sullivan, J. Va'Vra, W.J. Wisniewski, H.W. Wulsin, M.V. Purohit, J.R. Wilson, A. Randle-Conde, S.J. Sekula, M. Bellis, P.R. Burchat, E.M.T. Puccio, M.S. Alam, J.A. Ernst, R. Gorodeisky, N. Guttman, D.R. Peimer, A. Soffer, S.M. Spanier, J.L. Ritchie, R.F. Schwitters, J.M. Izen, X.C. Lou, F. Bianchi, F. De Mori, A. Filippi, D. Gamba, L. Lanceri, L. Vitale, F. Martinez-Vidal, A. Oyanguren, J. Albert, S. Banerjee, A. Beaulieu, F.U. Bernlochner, H.H.F. Choi, G.J. King, R. Kowalewski, M.J. Lewczuk, T. Lueck, I.M. Nugent, J.M. Roney, R.J. Sobie, N. Tasneem, T.J. Gershon, P.F. Harrison, T.E. Latham, H.R. Band, S. Dasu, Y. Pan, R. Prepost, S.L. Wu. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 92:7(2015), pp. 072015.1-072015.29.

Measurement of initial-state-final-state radiation interference in the processes e(+)e(-) -> mu(+)mu(-)gamma and e(+)e(-) -> pi(+)pi(-)gamma

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 Y. 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.;Rohrken 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.;N. Neri;F. Palombo;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 P.;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.;Bunger C.;Dittrich S.;Grunberg 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 S.;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.

2015

Abstract

Charge asymmetry in the processes e(+)e(-) -> mu(+)mu(-)gamma and e(+)e(-) -> pi(+)pi(-)gamma 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(-) -> mu(+)mu(-)gamma, and from theoretical models for e(+)e(-) -> pi(+)pi(-)gamma. A clear interference pattern is observed in e(+)e(-) -> pi(+)pi(-)gamma, particularly in the vicinity of the f(2)(1270) resonance. The inferred rate of lowest-order FSR production is consistent with the QED expectation for e(+)e(-) -> mu(+)mu(-)gamma, and is negligibly small for e(+)e(-) -> pi(+)pi(-)gamma.

Scheda breve

Scheda completa

Scheda completa (DC)

	Parole chiave
	
			Monte-Carlo; babar detector; asymmetry; physics
		
	Settori scientifico-disciplinari dell'articolo
	
			Settore FIS/01 - Fisica Sperimentale
Settore FIS/04 - Fisica Nucleare e Subnucleare
		
	Data di pubblicazione
	
			2015
		
	Rivista in ANCE
	
			PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
		
	DOI
	
			https://dx.doi.org/10.1103/PhysRevD.92.072015
		
	Tipologia
	
			Article (author)
		
	Appare nelle tipologie:
	
			01 - Articolo su periodico

File in questo prodotto:

File	Dimensione	Formato
PhysRevD-92-072015.pdf accesso aperto Tipologia: Publisher's version/PDF Dimensione 1.4 MB Formato Adobe PDF Visualizza/Apri	1.4 MB	Adobe PDF	Visualizza/Apri

Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/661042

Citazioni

ND

16

13

IRIS Institutional Research Information System - AIR Archivio Istituzionale della Ricerca