Search for CP violation in D + → ϕπ + and $ D_s^{+}\to K_S^0{\pi^{+}} $ decays

Abstract

A search for CP violation in D + → ϕπ + decays is performed using data collected in 2011 by the LHCb experiment corresponding to an integrated luminosity of 1.0 fb−1 at a centre of mass energy of 7 TeV. The CP -violating asymmetry is measured to be (−0.04 ± 0.14 ± 0.14)% for candidates with K − K + mass within 20 MeV/c 2 of the ϕ meson mass. A search for a CP -violating asymmetry that varies across the ϕ mass region of the D + → K − K + π + Dalitz plot is also performed, and no evidence for CP violation is found. In addition, the CP asymmetry in the D+s→K0Sπ+ decay is measured to be (0.61 ± 0.83 ± 0.14)%.

Metadata

Authors/Creators:	The LHCb collaboration Aaij, R Beteta, CA Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Cartelle, PA Alves, AA Amato, S Amerio, S Amhis, Y Anderlini, L Anderson, J Andreassen, R Appleby, RB Gutierrez, OA Archilli, F Artamonov, A Artuso, M Aslanides, E Auriemma, G Bachmann, S Back, JJ Baesso, C Balagura, V Baldini, W Barlow, RJ Barschel, C Barsuk, S Barter, W Bauer, T Bay, A Beddow, J Bedeschi, F Bediaga, I Belogurov, S Belous, K Belyaev, I Ben-Haim, E Benayoun, M Bencivenni, G Benson, S Benton, J Berezhnoy, A Bernet, R Bettler, M-O van Beuzekom, M Bien, A Bifani, S Bird, T Bizzeti, A Bjørnstad, PM Blake, T Blanc, F Blouw, J Blusk, S Bocci, V Bondar, A Bondar, N Bonivento, W Borghi, S Borgia, A Bowcock, TJV Bowen, E Bozzi, C Brambach, T van den Brand, J Bressieux, J Brett, D Britsch, M Britton, T Brook, NH Brown, H Burducea, I Bursche, A Busetto, G Buytaert, J Cadeddu, S Callot, O Calvi, M Gomez, MC Camboni, A Campana, P Carbone, A Carboni, G Cardinale, R Cardini, A Carranza-Mejia, H Carson, L Akiba, KC Casse, G Cattaneo, M Cauet, C Charles, M Charpentier, P Chen, P Chiapolini, N Chrzaszcz, M Ciba, K Vidal, XC Ciezarek, G Clarke, PEL Clemencic, M Cliff, HV Closier, J Coca, C Coco, V Cogan, J Cogneras, E Collins, P Comerma-Montells, A Contu, A Cook, A Coombes, M Coquereau, S Corti, G Couturier, B Cowan, GA Craik, D Cunliffe, S Currie, R D’Ambrosio, C David, P David, PNY De Bonis, I De Bruyn, K De Capua, S De Cian, M De Miranda, JM De Oyanguren Campos, M De Paula, L De Silva, W De Simone, P Decamp, D Deckenhoff, M Del Buono, L Derkach, D Deschamps, O Dettori, F Di Canto, A Dijkstra, H Dogaru, M Donleavy, S Dordei, F Suárez, AD Dossett, D Dovbnya, A Dupertuis, F Dzhelyadin, R Dziurda, A Dzyuba, A Easo, S Egede, U Egorychev, V Eidelman, S van Eijk, D Eisenhardt, S Eitschberger, U Ekelhof, R Eklund, L El Rifai, I Elsasser, C Elsby, D Falabella, A Färber, C Fardell, G Farinelli, C Farry, S Fave, V Ferguson, D Albor, VF Rodrigues, FF Ferro-Luzzi, M Filippov, S Fitzpatrick, C Fontana, M Fontanelli, F Forty, R Francisco, O Frank, M Frei, C Frosini, M Furcas, S Furfaro, E Torreira, AG Galli, D Gandelman, M Gandini, P Gao, Y Garofoli, J Garosi, P Tico, JG Garrido, L Gaspar, C Gauld, R Gersabeck, E Gersabeck, M Gershon, T Ghez, P Gibson, V Gligorov, VV Göbel, C Golubkov, D Golutvin, A Gomes, A Gordon, H https://orcid.org/0000-0002-1822-3224 Gándara, MG Diaz, RG Cardoso, LAG Graugés, E Graziani, G Grecu, A Greening, E Gregson, S Grünberg, O Gui, B Gushchin, E Guz, Y Gys, T Hadjivasiliou, C Haefeli, G Haen, C Haines, SC Hall, S Hampson, T Hansmann-Menzemer, S Harnew, N Harnew, ST Harrison, J Hartmann, T He, J Heijne, V Hennessy, K Henrard, P Morata, JAH van Herwijnen, E Hicks, E Hill, D Hoballah, M Hombach, C Hopchev, P Hulsbergen, W Hunt, P Huse, T Hussain, N Hutchcroft, D Hynds, D Iakovenko, V Idzik, M Ilten, P Jacobsson, R Jaeger, A Jans, E Jaton, P Jing, F John, M Johnson, D Jones, CR Jost, B Kaballo, M Kandybei, S Karacson, M Karbach, TM Kenyon, IR Kerzel, U Ketel, T Keune, A Khanji, B Kochebina, O Komarov, I Koopman, RF Koppenburg, P Korolev, M Kozlinskiy, A Kravchuk, L Kreplin, K Kreps, M Krocker, G Krokovny, P Kruse, F Kucharczyk, M Kudryavtsev, V Kvaratskheliya, T La Thi, VN Lacarrere, D Lafferty, G Lai, A Lambert, D Lambert, RW Lanciotti, E Lanfranchi, G Langenbruch, C Latham, T Lazzeroni, C Le Gac, R van Leerdam, J Lees, J-P Lefèvre, R Leflat, A Lefrançois, J Leo, S Leroy, O Leverington, B Li, Y Gioi, LL Liles, M Lindner, R Linn, C Liu, B Liu, G von Loeben, J Lohn, S Lopes, JH Lopez Asamar, E Lopez-March, N Lu, H Lucchesi, D Luisier, J Luo, H Machefert, F Machikhiliyan, IV Maciuc, F Maev, O Malde, S Manca, G Mancinelli, G Marconi, U Märki, R Marks, J Martellotti, G Martens, A Martin, L Sánchez, AM Martinelli, M Santos, DM Tostes, DM Massafferri, A Matev, R Mathe, Z Matteuzzi, C Maurice, E Mazurov, A McCarthy, J McNulty, R Mcnab, A Meadows, B Meier, F Meissner, M Merk, M Milanes, DA Minard, M-N Rodriguez, JM Monteil, S Moran, D Morawski, P Morello, MJ Mountain, R Mous, I Muheim, F Müller, K Muresan, R Muryn, B Muster, B Naik, P Nakada, T Nandakumar, R Nasteva, I Needham, M Neufeld, N Nguyen, AD Nguyen, TD Nguyen-Mau, C Nicol, M Niess, V Niet, R Nikitin, N Nikodem, T Nomerotski, A Novoselov, A Oblakowska-Mucha, A Obraztsov, V Oggero, S Ogilvy, S Okhrimenko, O Oldeman, R Orlandea, M Goicochea, JMO Owen, P Pal, BK Palano, A Palutan, M Panman, J Papanestis, A Pappagallo, M Parkes, C Parkinson, CJ Passaleva, G Patel, GD Patel, M Patrick, GN Patrignani, C Pavel-Nicorescu, C Alvarez, AP Pellegrino, A Penso, G Altarelli, MP Perazzini, S Perego, DL Perez Trigo, E Yzquierdo, AP-C Perret, P Perrin-Terrin, M Pessina, G Petridis, K Petrolini, A Phan, A Picatoste Olloqui, E Pietrzyk, B Pilař, T Pinci, D Playfer, S Casasus, MP Polci, F Polok, G Poluektov, A Polycarpo, E Popov, D Popovici, B Potterat, C Powell, A Prisciandaro, J Pugatch, V Puig Navarro, A Punzi, G Qian, W Rademacker, JH Rakotomiaramanana, B Rangel, MS Raniuk, I Rauschmayr, N Raven, G Redford, S Reid, MM dos Reis, AC Ricciardi, S Richards, A Rinnert, K Molina, VR Roa Romero, DA Robbe, P Rodrigues, E Rodriguez Perez, P Roiser, S Romanovsky, V Romero Vidal, A Rouvinet, J Ruf, T Ruffini, F Ruiz, H Ruiz Valls, P Sabatino, G Saborido Silva, JJ Sagidova, N Sail, P Saitta, B Salzmann, C Sanmartin Sedes, B Sannino, M Santacesaria, R Santamarina Rios, C Santovetti, E Sapunov, M Sarti, A Satriano, C Satta, A Savrie, M Savrina, D Schaack, P Schiller, M Schindler, H Schlupp, M Schmelling, M Schmidt, B Schneider, O Schopper, A Schune, M-H Schwemmer, R Sciascia, B Sciubba, A Seco, M Semennikov, A Senderowska, K Sepp, I Serra, N Serrano, J Seyfert, P Shapkin, M Shapoval, I Shatalov, P Shcheglov, Y Shears, T Shekhtman, L Shevchenko, O Shevchenko, V Shires, A Coutinho, RS Skwarnicki, T Smith, NA Smith, E Smith, M Sokoloff, MD Soler, FJP Soomro, F Souza, D Souza De Paula, B Spaan, B Sparkes, A Spradlin, P Stagni, F Stahl, S Steinkamp, O Stoica, S Stone, S Storaci, B Straticiuc, M Straumann, U Subbiah, VK Swientek, S Syropoulos, V Szczekowski, M Szczypka, P Szumlak, T T’Jampens, S Teklishyn, M Teodorescu, E Teubert, F Thomas, C Thomas, E van Tilburg, J Tisserand, V Tobin, M Tolk, S Tonelli, D Topp-Joergensen, S Torr, N Tournefier, E Tourneur, S Tran, MT Tresch, M Tsaregorodtsev, A Tsopelas, P Tuning, N Ubeda Garcia, M Ukleja, A Urner, D Uwer, U Vagnoni, V Valenti, G Vazquez Gomez, R Vazquez Regueiro, P Vecchi, S Velthuis, JJ Veltri, M Veneziano, G Vesterinen, M Viaud, B Vieira, D Vilasis-Cardona, X Vollhardt, A Volyanskyy, D Voong, D Vorobyev, A Vorobyev, V Voß, C Voss, H Waldi, R Wallace, R Wandernoth, S Wang, J Ward, DR Watson, NK Webber, AD Websdale, D Whitehead, M Wicht, J Wiechczynski, J Wiedner, D Wiggers, L Wilkinson, G Williams, MP Williams, M Wilson, FF Wishahi, J Witek, M Wotton, SA Wright, S Wu, S Wyllie, K Xie, Y Xing, F Xing, Z Yang, Z Young, R Yuan, X Yushchenko, O Zangoli, M Zavertyaev, M Zhang, F Zhang, L Zhang, WC Zhang, Y Zhelezov, A Zhokhov, A Zhong, L Zvyagin, A
Copyright, Publisher and Additional Information:	© CERN for the benefit of the LHCb collaboration 2013. JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0. https://scoap3.org/
Keywords:	CP violation; Charm physics; Hadron-Hadron Scattering
Dates:	Published (online): 28 June 2013 Published: June 2013
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst for Climate & Atmos Science (ICAS) (Leeds)
Depositing User:	Symplectic Publications
Date Deposited:	03 Apr 2019 14:49
Last Modified:	03 Apr 2019 14:49
Status:	Published
Publisher:	Springer Verlag
Identification Number:	https://doi.org/10.1007/JHEP06(2013)112
Related URLs:	Author

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Search for CP violation in D + → ϕπ + and $ D_s^{+}\to K_S^0{\pi^{+}} $ decays

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