Observation of direct CP-violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with $B \ra D^{(*)} K^{(*)}$ decays

Lees, J.P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D.N.; Kerth, L.T.; Kolomensky, Y.U.G.; Lee, M.J.; Lynch, G.; Koch, H.; Schroeder, T.; Hearty, C.; Mattison, T.S.; Mckenna, J.A.; G. Y., S.; Khan, A.; Blinovac, V.E.; Buzykaeva, A.R.; Druzhinin, V.P.; Golubev, V.B.; Kravchenko, E.A.; Onuchin, A.P.; Serednyakov, S.I.; Skovpen, Y.U.I.; Solodov, E.P.; Todyshev, K.Y.U.; Yushkov, A.N.; Lankford, A.J.; Mandelkern, M.; Dey, B.; Gary, J.W.; Long, O.; Campagnari, C.; Franco Sevilla, M.; Hong, T.M.; Kovalskyi, D.; Richman, J.D.; West, C.A.; Eisner, A.M.; Lockman, W.S.; Schumm, B.A.; Seiden, A.; Chao, D.S.; Cheng, C.H.; Echenard, B.; Flood, K.T.; Hitlin, D.G.; Miyashita, T.S.; Ongmongkolkul, P.; Porter, F.C.; Andreassen, R.; Huard, Z.; Meadows, B.T.; Pushpawela, B.G.; Sokoloff, M.D.; Sun, L.; Bloom, P.C.; Ford, W.T.; Nauenberg, A.G.U.; Smith, J.G.; Wagner, S.R.; Ayad, R.; Toki, W.H.; Spaan, B.; Schwierz, R.; Bernard, D.; Verderi, M.; Playfer, S.; Bettonia, 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.; Rama, M.; Zallo, A.; Contri, R.; Guido, E.; Lo Vetere, M.; Mong, M.R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Bhuyan, B.; Prasad, V.; Morii, M.; Adametz, A.; Uwer, U.; Lacker, H.M.; Dauncey, P.D.; Mallik, U.; Chen, C.; Cochran, J.; Meyer, W.T.; 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.; 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.; Bougher, J.; Brown, D.N.; Davis, C.L.; Denig, A.G.; Fritsch, M.; Gradl, W.; Griessinger, K.; Hafner, A.; Prencipe, E.; Schubert, K.R.; Barlow, R.J.; Lafferty, G.D.; Cenci, R.; Hamilton, B.; Jawahery, A.; Roberts, D.A.; Cowan, R.; Dujmic, D.; Sciolla, G.; Cheaib, R.; Patel, P.M.; Robertson, S.H.; Biassoni, P.; Neri, N.; Palombo, F.; Cremaldi, L.; Godang, R.; Sonnek, P.; Summers, D.J.; Simard, M.; Taras, P.; De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.; Martinelli, M.; Raven, G.; Jessop, C.P.; Lo Secco, J.M.; Honscheid, K.; Kass, R.; Brau, J.; Frey, R.; Sinev, N.B.; Strom, D.; Torrence, E.; Feltresi, E.; 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.H.; Marchiori, G.; Ocariz, J.; Sitt, S.; Biasini, M.; Manonia, E.; Pacetti, S.; Rossi, A.; Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Chrzaszcz, M.; Forti, F.; Giorgi, M.A.; Lusiani, A.; Oberhof, B.; Paoloni, E.; Perez, A.; Rizzo, G.; Walsh, J.J.; Lopes Pegna, D.; Olsen, J.; Smith, A.J.S.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Li Gioi, L.; Piredda, G.; Bunnge, C.; Grunberg, O.; Hartmann, T.; Leddig, T.; Vo√ü, C.; Waldi, R.; Adye, T.; Olaiya, E.O.; Wilson, F.F.; Emery, S.; Hamel de Monchenault, G.; Vasseur, G.; Yeche, C.H.; Anulli, F.; Aston, D.; Bard, D.J.; Benitez, J.F.; Cartaro, C.; Convery, M.R.; Dorfan, J.; Dubois Felsmann, G.P.; Dunwoodie, W.; Ebert, M.; Field, R.C.; Fulsom, B.G.; Gabareen, A.M.; Graham, M.T.; Hast, C.; Innes, W.R.; Kim, P.; Kocian, M.L.; Leith, D.W.G.S.; Lindemann, D.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H.L.; Macfarlane, D.B.; Muller, D.R.; Neal, H.; Nelson, S.; Perl, M.; Pulliam, T.; Ratcliff, B.N.; Roodman, A.; Salnikov, A.A.; Schindler, R.H.; Snyder, A.; Su, D.; Sullivan, M.K.; Vaôvra, J.; Wagner, A.P.; Wang, W.F.; Wisniewski, W.J.; Wittgen, M.; Wright, D.H.; Wulsin, H.W.; Ziegler, V.; Park, W.; Purohit, M.V.; White, R.M.; 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.; Ruland, A.M.; Schwitters, R.F.; Wray, B.C.; Izen, J.M.; Lou, X.C.; Bianchi, F.; De Mori, F.; Filippi, A.; Gamba, D.; Zambito, S.; Lanceri, L.; Vitale, L.; Martinez Vidal, F.; Oyanguren, A.; Villanueva Perez, P.; Albert, J.; Banerjee, S.W.; 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.87.052015

We report the determination of the Cabibbo-Kobayashi-Maskawa CP-violating angle γ through the combination of various measurements involving B±→DK±, B±→D∗K±, and B±→DK*± decays performed by the BABAR experiment at the PEP-II e+e− collider at SLAC National Accelerator Laboratory. Using up to 474 million BB¯¯¯ pairs, we obtain γ=(69+17−16)° modulo 180°. The total uncertainty is dominated by the statistical component, with the experimental and amplitude-model systematic uncertainties amounting to ±4°. The corresponding two-standard-deviation region is 41°<γ<102°. This result is inconsistent with γ=0 with a significance of 5.9 standard deviations.

Observation of direct CP-violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with $B \ra D^{(*)} K^{(*)}$ decays / J.P. Lees, V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, B. Stugu, D.N. Brown, L.T. Kerth, Y.U.G. Kolomensky, M.J. Lee, G. Lynch, H. Koch, T. Schroeder, C. Hearty, T.S. Mattison, J.A. Mckenna, G.Y. So, A. Khan, V.E. Blinovac, A.R. Buzykaeva, V.P. Druzhinin, V.B. Golubev, E.A. Kravchenko, A.P. Onuchin, S.I. Serednyakov, Y.U.I. Skovpen, E.P. Solodov, K.Y.U. Todyshev, A.N. Yushkov, A.J. Lankford, M. Mandelkern, B. Dey, J.W. Gary, O. Long, C. Campagnari, M. Franco Sevilla, T.M. Hong, D. Kovalskyi, J.D. Richman, C.A. West, A.M. Eisner, W.S. Lockman, B.A. Schumm, A. Seiden, D.S. Chao, C.H. Cheng, B. Echenard, K.T. Flood, D.G. Hitlin, T.S. Miyashita, P. Ongmongkolkul, F.C. Porter, R. Andreassen, Z. Huard, B.T. Meadows, B.G. Pushpawela, M.D. Sokoloff, L. Sun, P.C. Bloom, W.T. Ford, A.G.U. Nauenberg, J.G. Smith, S.R. Wagner, R. Ayad, W.H. Toki, B. Spaan, R. Schwierz, D. Bernard, M. Verderi, S. Playfer, D. Bettonia, 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, M. Rama, A. Zallo, R. Contri, E. Guido, M. Lo Vetere, M.R. Mong, S. Passaggio, C. Patrignani, E. Robutti, B. Bhuyan, V. Prasad, M. Morii, A. Adametz, U. Uwer, H.M. Lacker, P.D. Dauncey, U. Mallik, C. Chen, J. Cochran, W.T. Meyer, 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, 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, J. Bougher, D.N. Brown, C.L. Davis, A.G. Denig, M. Fritsch, W. Gradl, K. Griessinger, A. Hafner, E. Prencipe, K.R. Schubert, R.J. Barlow, G.D. Lafferty, R. Cenci, B. Hamilton, A. Jawahery, D.A. Roberts, R. Cowan, D. Dujmic, G. Sciolla, R. Cheaib, P.M. Patel, S.H. Robertson, P. Biassoni, N. Neri, F. Palombo, L. Cremaldi, R. Godang, P. Sonnek, D.J. Summers, M. Simard, P. Taras, G. De Nardo, D. Monorchio, G. Onorato, C. Sciacca, M. Martinelli, G. Raven, C.P. Jessop, J.M. Lo Secco, K. Honscheid, R. Kass, J. Brau, R. Frey, N.B. Sinev, D. Strom, E. Torrence, E. Feltresi, 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.H. Leruste, G. Marchiori, J. Ocariz, S. Sitt, M. Biasini, E. Manonia, S. Pacetti, A. Rossi, C. Angelini, G. Batignani, S. Bettarini, M. Carpinelli, G. Casarosa, A. Cervelli, M. Chrzaszcz, F. Forti, M.A. Giorgi, A. Lusiani, B. Oberhof, E. Paoloni, A. Perez, G. Rizzo, J.J. Walsh, D. Lopes Pegna, J. Olsen, A.J.S. Smith, R. Faccini, F. Ferrarotto, F. Ferroni, M. Gaspero, L. Li Gioi, G. Piredda, C. Bunnge, O. Grunberg, T. Hartmann, T. Leddig, C. Vo√ü, R. Waldi, T. Adye, E.O. Olaiya, F.F. Wilson, S. Emery, G. Hamel de Monchenault, G. Vasseur, C.H. Yeche, F. Anulli, D. Aston, D.J. Bard, J.F. Benitez, C. Cartaro, M.R. Convery, J. Dorfan, G.P. Dubois Felsmann, W. Dunwoodie, M. Ebert, R.C. Field, B.G. Fulsom, A.M. Gabareen, M.T. Graham, C. Hast, W.R. Innes, P. Kim, M.L. Kocian, D.W.G.S. Leith, D. Lindemann, B. Lindquist, S. Luitz, V. Luth, H.L. Lynch, D.B. Macfarlane, D.R. Muller, H. Neal, S. Nelson, M. Perl, T. Pulliam, B.N. Ratcliff, A. Roodman, A.A. Salnikov, R.H. Schindler, A. Snyder, D. Su, M.K. Sullivan, J. Vaôvra, A.P. Wagner, W.F. Wang, W.J. Wisniewski, M. Wittgen, D.H. Wright, H.W. Wulsin, V. Ziegler, W. Park, M.V. Purohit, R.M. White, 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, A.M. Ruland, R.F. Schwitters, B.C. Wray, J.M. Izen, X.C. Lou, F. Bianchi, F. De Mori, A. Filippi, D. Gamba, S. Zambito, L. Lanceri, L. Vitale, F. Martinez Vidal, A. Oyanguren, P. Villanueva Perez, J. Albert, S.W. Banerjee, 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. - 87:5(2013), pp. 052015.1-052015.12. [10.1103/PhysRevD.87.052015]

Observation of direct CP-violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with $B \ra D^{()} K^{()}$ decays

J. P. Lees;V. Poireau;V. Tisserand;E. Grauges;A. Palano;G. Eigen;B. Stugu;D. N. Brown;L. T. Kerth;Y.u. G. Kolomensky;M. J. Lee;G. Lynch;H. Koch;T. Schroeder;C. Hearty;T. S. Mattison;J. A. McKenna;G. Y. So;A. Khan;V. E. Blinovac;A. R. Buzykaeva;V. P. Druzhinin;V. B. Golubev;E. A. Kravchenko;A. P. Onuchin;S. I. Serednyakov;Y.u. I. Skovpen;E. P. Solodov;K. Y.u. Todyshev;A. N. Yushkov;A. J. Lankford;M. Mandelkern;B. Dey;J. W. Gary;O. Long;C. Campagnari;M. Franco Sevilla;T. M. Hong;D. Kovalskyi;J. D. Richman;C. A. West;A. M. Eisner;W. S. Lockman;B. A. Schumm;A. Seiden;D. S. Chao;C. H. Cheng;B. Echenard;K. T. Flood;D. G. Hitlin;T. S. Miyashita;P. Ongmongkolkul;F. C. Porter;R. Andreassen;Z. Huard;B. T. Meadows;B. G. Pushpawela;M. D. Sokoloff;L. Sun;P. C. Bloom;W. T. Ford;A. Gaz U. Nauenberg;J. G. Smith;S. R. Wagner;R. Ayad;W. H. Toki;B. Spaan;R. Schwierz;D. Bernard;M. Verderi;S. Playfer;D. Bettonia;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;M. Rama;A. Zallo;R. Contri;E. Guido;M. Lo Vetere;M. R. Mong;S. Passaggio;C. Patrignani;E. Robutti;B. Bhuyan;V. Prasad;M. Morii;A. Adametz;U. Uwer;H. M. Lacker;P. D. Dauncey;U. Mallik;C. Chen;J. Cochran;W. T. Meyer;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;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;J. Bougher;D. N. Brown;C. L. Davis;A. G. Denig;M. Fritsch;W. Gradl;K. Griessinger;A. Hafner;E. Prencipe;K. R. Schubert;R. J. Barlow;G. D. Lafferty;R. Cenci;B. Hamilton;A. Jawahery;D. A. Roberts;R. Cowan;D. Dujmic;G. Sciolla;R. Cheaib;P. M. Patel;S. H. Robertson;P. Biassoni;N. Neri;F. Palombo;L. Cremaldi;R. Godang;P. Sonnek;D. J. Summers;M. Simard;P. Taras;G. De Nardo;D. Monorchio;G. Onorato;C. Sciacca;M. Martinelli;G. Raven;C. P. Jessop;J. M. Lo Secco;K. Honscheid;R. Kass;J. Brau;R. Frey;N. B. Sinev;D. Strom;E. Torrence;E. Feltresi;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.h. Leruste;G. Marchiori;J. Ocariz;S. Sitt;M. Biasini;E. Manonia;S. Pacetti;A. Rossi;C. Angelini;G. Batignani;S. Bettarini;M. Carpinelli;G. Casarosa;A. Cervelli;M. Chrzaszcz;F. Forti;M. A. Giorgi;A. Lusiani;B. Oberhof;E. Paoloni;A. Perez;G. Rizzo;J. J. Walsh;D. Lopes Pegna;J. Olsen;A. J. S. Smith;R. Faccini;F. Ferrarotto;F. Ferroni;M. Gaspero;L. Li Gioi;G. Piredda;C. Bunnge;O. Grunberg;T. Hartmann;T. Leddig;C. Vo√ü;R. Waldi;T. Adye;E. O. Olaiya;F. F. Wilson;S. Emery;G. Hamel de Monchenault;G. Vasseur;C.h. Yeche;F. Anulli;D. Aston;D. J. Bard;J. F. Benitez;C. Cartaro;M. R. Convery;J. Dorfan;G. P. Dubois Felsmann;W. Dunwoodie;M. Ebert;R. C. Field;B. G. Fulsom;A. M. Gabareen;M. T. Graham;C. Hast;W. R. Innes;P. Kim;M. L. Kocian;D. W. G. S. Leith;D. Lindemann;B. Lindquist;S. Luitz;V. Luth;H. L. Lynch;D. B. MacFarlane;D. R. Muller;H. Neal;S. Nelson;M. Perl;T. Pulliam;B. N. Ratcliff;A. Roodman;A. A. Salnikov;R. H. Schindler;A. Snyder;D. Su;M. K. Sullivan;J. Vaôvra;A. P. Wagner;W. F. Wang;W. J. Wisniewski;M. Wittgen;D. H. Wright;H. W. Wulsin;V. Ziegler;W. Park;M. V. Purohit;R. M. White;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;A. M. Ruland;R. F. Schwitters;B. C. Wray;J. M. Izen;X. C. Lou;F. Bianchi;F. De Mori;A. Filippi;D. Gamba;S. Zambito;L. Lanceri;L. Vitale;F. Martinez Vidal;A. Oyanguren;P. Villanueva Perez;J. Albert;S.w. Banerjee;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

2013

Abstract

We report the determination of the Cabibbo-Kobayashi-Maskawa CP-violating angle γ through the combination of various measurements involving B±→DK±, B±→D∗K±, and B±→DK*± decays performed by the BABAR experiment at the PEP-II e+e− collider at SLAC National Accelerator Laboratory. Using up to 474 million BB¯¯¯ pairs, we obtain γ=(69+17−16)° modulo 180°. The total uncertainty is dominated by the statistical component, with the experimental and amplitude-model systematic uncertainties amounting to ±4°. The corresponding two-standard-deviation region is 41°<γ<102°. This result is inconsistent with γ=0 with a significance of 5.9 standard deviations.

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	Settori scientifico-disciplinari dell'articolo
	
			Settore FIS/04 - Fisica Nucleare e Subnucleare
		
	Data di pubblicazione
	
			2013
		
	Rivista in ANCE
	
			PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
		
	DOI
	
			https://dx.doi.org/10.1103/PhysRevD.87.052015
		
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			Article (author)
		
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			01 - Articolo su periodico

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