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Measurement of the mass difference between neutral charm-meson eigenstates
| File | Description | Size | Format | |
|---|---|---|---|---|
 PhysRevLett.122.231802.pdf | Published version | 1.06 MB | Adobe PDF | View/Open |
| Title: | Measurement of the mass difference between neutral charm-meson eigenstates |
| Authors: | Aaij, R Beteta, CA Adeva, B Adinolfi, M Aidala, CA Ajaltouni, Z Akar, S Albicocco, P Albrecht, J Alessio, F Alexander, M Albero, AA Alkhazov, G Cartelle, PA Alves, AA Amato, S Amhis, Y An, L Anderlini, L Andreassi, G Andreotti, M Andrews, JE Archilli, F Romeu, JA Artamonov, A Artuso, M Arzymatov, K Aslanides, E Atzeni, M Audurier, B Bachmann, S Back, JJ Baker, S Balagura, V Baldini, W Baranov, A Barlow, RJ Barrand, GC Barsuk, S Barter, W Bartolini, M Baryshnikov, F Batozskaya, V Batsukh, B Battig, A Battista, V Bay, A Bedeschi, F Bediaga, I Beiter, A Bel, LJ Belin, S Beliy, N Bellee, V Belloli, N Belous, K Belyaev, I Bencivenni, G Ben-Haim, E Benson, S Beranek, S Berezhnoy, A Bernet, R Berninghoff, D Bertholet, E Bertolin, A Betancourt, C Betti, F Bettler, MO Bezshyiko, I Bhasin, S Bhom, J Bieker, MS Bifani, S Billoir, P Birnkraut, A Bizzeti, A Bjorn, M Blago, MP Blake, T Blanc, F Blusk, S Bobulska, D Bocci, V Boente Garcia, O Boettcher, T Bondar, A Bondar, N Borghi, S Borisyak, M Borsato, M Boubdir, M Bowcock, TJ Bozzi, C Braun, S Brodski, M Brodzicka, J Gonzalo, AB Brundu, D Buchanan, E Buonaura, A Burr, C Bursche, A Buytaert, J Byczynski, W Cadeddu, S Cai, H Calabrese, R Calladine, R Calvi, M Calvo Gomez, M Camboni, A Campana, P Perez, DHC Capriotti, L Carbone, A Carboni, G Cardinale, R Cardini, A Carniti, P Carvalho Akiba, K Casse, G Cattaneo, M Cavallero, G Cenci, R Chamont, D Chapman, MG Charles, M Charpentier, P Chatzikonstantinidis, G Chefdeville, M Chekalina, V Chen, C Chen, S Chitic, S-G Chobanova, V Chrzaszcz, M Chubykin, A Ciambrone, P Cid Vidal, X Ciezarek, G Cindolo, F Clarke, PEL Clemencic, M Cliff, H Closier, J Coco, V Coelho, JAB Cogan, J Cogneras, E Cojocariu, L Collins, P Colombo, T Comerma-Montells, A Contu, A Coombs, G Coquereau, S Corti, G Sobral, CMC Couturier, B Cowan, GA Craik, DC Crocombe, A Cruz Torres, M Currie, R Da Silva, CL Dall'Occo, E Dalseno, J D'Ambrosio, C Danilina, A D'Argent, P Davis, A Francisco, ODA De Bruyn, K De Capua, S De Cian, M De Miranda, JM De Paula, L De Serio, M De Simone, P De Vries, JA Dean, CT Dean, W Decamp, D Del Buono, L Delaney, B Dembinski, H-P Demmer, M Dendek, A Derkach, D Deschamps, O Desse, F Dettori, F Dey, B Di Canto, A Di Nezza, P Didenko, S Dijkstra, H Dordei, F Dorigo, M Dos Reis, AC Dosil Suarez, A Douglas, L Dovbnya, A Dreimanis, K Dufour, L Dujany, G Durante, P Durham, JM Dutta, D Dzhelyadin, R Dziewiecki, M Dziurda, A Dzyuba, A Easo, S Egede, U Egorychev, V Eidelman, S Eisenhardt, S Eitschberger, U Ekelhof, R Eklund, L Ely, S Ene, A Escher, S Esen, S Evans, T Falabella, A Faerber, C Farley, N Farry, S Fazzini, D Feo, M Declara, PF Fernandez Prieto, A Ferrari, F Lopes, LF Ferreira Rodrigues, F Sole, SF Ferro-Luzzi, M Filippov, S Fini, RA Fiorini, M Firlej, M Fitzpatrick, C Fiutowski, T Fleuret, F Fontana, M Fontanelli, F Forty, R Lima, VF Frank, M Frei, C Fu, J Funk, W Gabriel, E Gallas Torreira, A Galli, D Gallorini, S Gambetta, S Gan, Y Gandelman, M Gandini, P Gao, Y Garcia Martin, LM Pardinas, JG Garcia Plana, B Tico, JG Garrido, L Gascon, D Gaspar, C Gazzoni, G Gerick, D Gersabeck, E Gersabeck, M Gershon, T Gerstel, D Ghez, P Gibson, V Girard, OG Gironella Gironell, P Giubega, L Gizdov, K Gligorov, VV Gobel, C Golubkov, D Golutvin, A Gomes, A Gorelov, I Gotti, C Govorkova, E Grabowski, JP Graciani Diaz, R Cardoso, LAG Grauges, E Graverini, E Graziani, G Grecu, A Greim, R Griffith, P Grillo, L Gruber, L Cazon, BRG Gu, C Gushchin, E Guth, A Guz, Y Gys, T Hadavizadeh, T Hadjivasiliou, C Haefeli, G Haen, C Haines, SC Hamilton, B Han, X Hancock, TH Hansmann-Menzemer, S Harnew, N Harrison, T Hasse, C Hatch, M He, J Hecker, M Heinicke, K Heister, A Hennessy, K Henry, L Hess, M Heuel, J Hicheur, A Charman, RH Hill, D Hilton, M Hopchev, PH Hu, J Hu, W Huang, W Huard, ZC Hulsbergen, W Humair, T Hushchyn, M Hutchcroft, D Hynds, D Ibis, P Idzik, M Ilten, P Inglessi, A Inyakin, A Ivshin, K Jacobsson, R Jakobsen, S Jalocha, J Jans, E Jashal, BK Jawahery, A Jiang, F John, M Johnson, D Jones, CR Joram, C Jost, B Jurik, N Kandybei, S Karacson, M Kariuki, JM Karodia, S Kazeev, N Kecke, M Keizer, F Kelsey, M Kenzie, M Ketel, T Khanji, B Kharisova, A Khurewathanakul, C Kim, KE Kirn, T Kirsebom, VS Klaver, S Klimaszewski, K Koliiev, S Kolpin, M Kopecna, R Koppenburg, P Kostiuk, I Kotriakhova, S Kozeiha, M Kravchuk, L Kreps, M Kress, F Kretzschmar, S Krokovny, P Krupa, W Krzemien, W Kucewicz, W Kucharczyk, M Kudryavtsev, V Kuonen, AK Kvaratskheliya, T Lacarrere, D Lafferty, G Lai, A Lancierini, D Lanfranchi, G Langenbruch, C Latham, T Lazzeroni, C Le Gac, R Lefevre, R Leflat, A Lemaitre, F Leroy, O Lesiak, T Leverington, B Li, H Li, P-R Li, Y Li, Z Liang, X Likhomanenko, T Lindner, R Lionetto, F Lisovskyi, V Liu, G Liu, X Loh, D Loi, A Longstaff, I Lopes, JH Loustau, G Lovell, GH Lucchesi, D Lucio Martinez, M Luo, Y Lupato, A Luppi, E Lupton, O Lusiani, A Lyu, X Machefert, F Maciuc, F Macko, V Mackowiak, P Maddrell-Mander, S Maev, O Maguire, K Maisuzenko, D Majewski, MW Malde, S Malecki, B Malinin, A Maltsev, T Malygina, H Manca, G Mancinelli, G Marangotto, D Maratas, J Marchand, JF Marconi, U Benito, CM Marinangeli, M Marino, P Marks, J Marshall, PJ Martellotti, G Martinelli, M Martinez Santos, D Martinez Vidal, F Massafferri, A Materok, M Matev, R Mathad, A Mathe, Z Matiunin, V Matteuzzi, C Mattioli, KR Mauri, A Maurice, E Maurin, B McCann, M McNab, A McNulty, R Mead, J Meadows, B Meaux, C Meinert, N Melnychuk, D Merk, M Merli, A Michielin, E Milanes, DA Millard, E Minard, M-N Minzoni, L Mitzel, DS Moedden, A Mogini, A Moise, RD Mombaecher, T Monroy, IA Monteil, S Morandin, M Morello, G Morello, MJ Moron, J Morris, AB Mountain, R Muheim, F Mukherjee, M Mulder, M Mueller, D Mueller, J Mueller, K Mueller, V Murphy, CH Murray, D Naik, P Nakada, T Nandakumar, R Nandi, A Nanut, T Nasteva, I Needham, M Neri, N Neubert, S Neufeld, N Newcombe, R Nguyen, TD Nguyen-Mau, C Nieswand, S Niet, R Nikitin, N Nolte, NS Oblakowska-Mucha, A Obraztsov, V Ogilvy, S O'Hanlon, DP Oldeman, R Onderwater, CJG Osborn, JD Ossowska, A Otalora Goicochea, JM Ovsiannikova, T Owen, P Oyanguren, A Pais, PR Pajero, T Palano, A Palutan, M Panshin, G Papanestis, A Pappagallo, M Pappalardo, LL Parker, W Parkes, C Passaleva, G Pastore, A Patel, M Patrignani, C Pearce, A Pellegrino, A Penso, G Altarelli, MP Perazzini, S Pereima, D Perret, P Pescatore, L Petridis, K Petrolini, A Petrov, A Petrucci, S Petruzzo, M Pietrzyk, B Pietrzyk, G Pikies, M Pili, M Pinci, D Pinzino, J Pisani, F Piucci, A Placinta, V Playfer, S Plews, J Plo Casasus, M Polci, F Lener, MP Poliakova, M Poluektov, A Polukhina, N Polyakov, I Polycarpo, E Pomery, GJ Ponce, S Popov, A Popov, D Poslavskii, S Price, E Prouve, C Pugatch, V Navarro, AP Pullen, H Punzi, G Qian, W Qin, J Quagliani, R Quintana, B Raab, N Rachwal, B Rademacker, JH Rama, M Ramos Pernas, M Rangel, MS Ratnikov, F Raven, G Salzgeber, MR Reboud, M Redi, F Reichert, S Reiss, F Remon Alepuz, C Ren, Z Renaudin, V Ricciardi, S Richards, S Rinnert, K Robbe, P Robert, A Rodrigues, AB Rodrigues, E Lopez, JAR Roehrken, M Roiser, S Rollings, A Romanovskiy, V Romero Vidal, A Roth, JD Rotondo, M Rudolph, MS Ruf, T Ruiz Vidal, J Saborido Silva, JJ Sagidova, N Saitta, B Salustino Guimaraes, V Gras, CS Sanchez Mayordomo, C Sanmartin Sedes, B Santacesaria, R Santamarina Rios, C Santimaria, M Santovetti, E Sarpis, G Sarti, A Satriano, C Satta, A Saur, M Savrina, D Schael, S Schellenberg, M Schiller, M Schindler, H Schmelling, M Schmelzer, T Schmidt, B Schneider, O Schopper, A Schreiner, HF Schubiger, M Schulte, S Schune, MH Schwemmer, R Sciascia, B Sciubba, A Semennikov, A Sepulveda, ES Sergi, A Serra, N Serrano, J Sestini, L Seuthe, A Seyfert, P Shapkin, M Shears, T Shekhtman, L Shevchenko, V Shmanin, E Siddi, BG Coutinho, RS Silva de Oliveira, L Simi, G Simone, S Skiba, I Skidmore, N Skwarnicki, T Slater, MW Smeaton, JG Smith, E Smith, IT Smith, M Soares, M Soares Lavra, I Sokoloff, MD Soler, FJP Souza De Paula, B Spaan, B Norella, ES Spradlin, P Stagni, F Stahl, M Stahl, S Stefko, P Stefkova, S Steinkamp, O Stemmle, S Stenyakin, O Stepanova, M Stevens, H Stocchi, A Stone, S Stracka, S Stramaglia, ME Straticiuc, M Straumann, U Strokov, S Sun, J Sun, L Sun, Y Swientek, K Szabelski, A Szumlak, T Szymanski, M Tang, Z Tekampe, T Tellarini, G Teubert, F Thomas, E Tilley, MJ Tisserand, V T'Jampens, S Tobin, M Tolk, S Tomassetti, L Tonelli, D Tou, DY Tourinho Jadallah Aoude, R Tournefier, E Traill, M Tran, MT Trisovic, A Tsaregorodtsev, A Tuci, G Tully, A Tuning, N Ukleja, A Usachov, A Ustyuzhanin, A Uwer, U Vagner, A Vagnoni, V Valassi, A Valat, S Valenti, G Van Beuzekom, M Van Herwijnen, E Van Hulse, CB Van Tilburg, J Van Veghel, M Gomez, RV Vazquez Regueiro, P Sierra, CV Vecchi, S Velthuis, JJ Veltri, M Venkateswaran, A Vernet, M Veronesi, M Vesterinen, M Barbosa, JVV Vieira, D Vieites Diaz, M Viemann, H Vilasis-Cardona, X Vitkovskiy, A Vitti, M Volkov, V Vollhardt, A Vom Bruch, D Voneki, B Vorobyev, A Vorobyev, V Voropaev, N Waldi, R Walsh, J Wang, J Wang, M Wang, Y Wang, Z Ward, DR Wark, HM Watson, NK Websdale, D Weiden, A Weisser, C Whitehead, M Wilkinson, G Wilkinson, M Williams, I Williams, M Williams, MRJ Williams, T Wilson, FF Winn, M Wislicki, W Witek, M Wormser, G Wotton, SA Wyllie, K Xiao, D Xie, Y Xing, H Xu, A Xu, M Xu, Q Xu, Z Yang, Z Yao, Y Yeomans, LE Yin, H Yu, J Yuan, X Yushchenko, O Zarebski, KA Zavertyaev, M Zeng, M Zhang, D Zhang, L Zhang, WC Zhang, Y Zhelezov, A Zheng, Y Zhu, X Zhukov, V Zonneveld, JB Zucchelli, S |
| Item Type: | Journal Article |
| Abstract: | We report a measurement of the mass difference between neutral charm-meson eigenstates using a novel approach that enhances sensitivity to this parameter. We use 2.3×106 D0→K0Sπ+π− decays reconstructed in proton-proton collisions collected by the LHCb experiment in 2011 and 2012. Allowing for CP violation in mixing and in the interference between mixing and decay, we measure the CP-averaged normalized mass difference xCP=[2.7±1.6(stat)±0.4(syst)]×10−3 and the CP-violating parameter Δx=[−0.53±0.70(stat)±0.22(syst)]×10−3. The results are consistent with CP symmetry. These determinations are the most precise from a single experiment and, combined with current world-average results, yield the first evidence that the masses of the neutral charm-meson eigenstates differ. |
| Issue Date: | 14-Jun-2019 |
| Date of Acceptance: | 1-Jun-2019 |
| URI: | http://hdl.handle.net/10044/1/79944 |
| DOI: | 10.1103/PhysRevLett.122.231802 |
| ISSN: | 0031-9007 |
| Publisher: | American Physical Society |
| Journal / Book Title: | Physical Review Letters |
| Volume: | 122 |
| Issue: | 23 |
| Copyright Statement: | © 2019 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. |
| Keywords: | Science & Technology Physical Sciences Physics, Multidisciplinary Physics LHCb Collaboration Science & Technology Physical Sciences Physics, Multidisciplinary Physics hep-ex hep-ex General Physics 01 Mathematical Sciences 02 Physical Sciences 09 Engineering |
| Publication Status: | Published |
| Open Access location: | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.231802 |
| Article Number: | ARTN 231802 |
| Appears in Collections: | Physics High Energy Physics |