Observation of New Ω_{c}^{0} States Decaying to the Ξ_{c}^{+}K^{-} Final State

Aaij, R;Abdelmotteleb, A S W;Abellan Beteta, C;Abudinén, F;Ackernley, T;Adeva, B;Adinolfi, M;Adlarson, P;Afsharnia, H;Agapopoulou, C;Aidala, C A;Ajaltouni, Z;Akar, S;Akiba, K;Albicocco, P;Albrecht, J;Alessio, F;Alexander, M;Alfonso Albero, A;Aliouche, Z;Alvarez Cartelle, P;Amalric, R;Amato, S;Amey, J L;Amhis, Y;An, L;Anderlini, L;Andersson, M;Andreianov, A;Andreotti, M;Andreou, D;Ao, D;Archilli, F;Artamonov, A;Artuso, M;Aslanides, E;Atzeni, M;Audurier, B;Bachiller Perea, I B;Bachmann, S;Bachmayer, M;Back, J J;Bailly-Reyre, A;Baladron Rodriguez, P;Balagura, V;Baldini, W;Baptista de Souza Leite, J;Barbetti, M;Barlow, R J;Barsuk, S;Barter, W;Bartolini, M;Baryshnikov, F;Basels, J M;Bassi, G;Batsukh, B;Battig, A;Bay, A;Beck, A;Becker, M;Bedeschi, F;Bediaga, I B;Beiter, A;Belin, S;Bellee, V;Belous, K;Belov, I;Belyaev, I;Benane, G;Bencivenni, G;Ben-Haim, E;Berezhnoy, A;Bernet, R;Bernet Andres, S;Berninghoff, D;Bernstein, H C;Bertella, C;Bertolin, A;Betancourt, C;Betti, F;Bezshyiko, Ia;Bhom, J;Bian, L;Bieker, M S;Biesuz, N V;Billoir, P;Biolchini, A;Birch, M;Bishop, F C R;Bitadze, A;Bizzeti, A;Blago, M P;Blake, T;Blanc, F;Blank, J E;Blusk, S;Bobulska, D;Boelhauve, J A;Boente Garcia, O;Boettcher, T;Boldyrev, A;Bolognani, C S;Bolzonella, R;Bondar, N;Borgato, F;Borghi, S;Borsato, M;Borsuk, J T;Bouchiba, S A;Bowcock, T J V;Boyer, A;Bozzi, C;Bradley, M J;Braun, S;Brea Rodriguez, A;Brodzicka, J;Brossa Gonzalo, A;Brown, J;Brundu, D;Buonaura, A;Buonincontri, L;Burke, A T;Burr, C;Bursche, A;Butkevich, A;Butter, J S;Buytaert, J;Byczynski, W;Cadeddu, S;Cai, H;Calabrese, R;Calefice, L;Cali, S;Calvi, M;Calvo Gomez, M;Campana, P;Campora Perez, D H;Campoverde Quezada, A F;Capelli, S;Capriotti, L;Carbone, A;Cardinale, R;Cardini, A;Carniti, P;Carus, L;Casais Vidal, A;Caspary, R;Casse, G;Cattaneo, M;Cavallero, G;Cavallini, V;Celani, S;Cerasoli, J;Cervenkov, D;Chadwick, A J;Chahrour, I;Chapman, M G;Charles, M;Charpentier, Ph;Chavez Barajas, C A;Chefdeville, M;Chen, C;Chen, S;Chernov, A;Chernyshenko, S;Chobanova, V;Cholak, S;Chrzaszcz, M;Chubykin, A;Chulikov, V;Ciambrone, P;Cicala, M F;Cid Vidal, X;Ciezarek, G;Cifra, P;Ciullo, G;Clarke, P E L;Clemencic, M;Cliff, H V;Closier, J;Cobbledick, J L;Coco, V;Cogan, J;Cogneras, E;Cojocariu, L;Collins, P;Colombo, T;Congedo, L;Contu, A;Cooke, N;Corredoira, I;Corti, G;Couturier, B;Craik, D C;Cruz Torres, M;Currie, R;Da Silva, C L;Dadabaev, S;Dai, L;Dai, X;Dall'Occo, E;Dalseno, J;D'Ambrosio, C;Daniel, J;Danilina, A;d'Argent, P;Davies, J E;Davis, A;De Aguiar Francisco, O;de Boer, J;De Bruyn, K;De Capua, S;De Cian, M;De Freitas Carneiro Da Graca, U;De Lucia, E;De Miranda, J M;De Paula, L;De Serio, M;De Simone, D;De Simone, P;De Vellis, F;de Vries, J A;Dean, C T;Debernardis, F;Decamp, D;Dedu, V;Del Buono, L;Delaney, B;Dembinski, H-P;Denysenko, V;Deschamps, O;Dettori, F;Dey, B;Di Nezza, P;Diachkov, I;Didenko, S;Dieste Maronas, L;Ding, S;Dobishuk, V;Dolmatov, A;Dong, C;Donohoe, A M;Dordei, F;Dos Reis, A C;Douglas, L;Downes, A G;Duda, P;Dudek, M W;Dufour, L;Duk, V;Durante, P;Duras, M M;Durham, J M;Dutta, D;Dziurda, A;Dzyuba, A;Easo, S;Egede, U;Egorychev, V;Eirea Orro, C;Eisenhardt, S;Ejopu, E;Ek-In, S;Eklund, L;Elashri, M E;Ellbracht, J;Ely, S;Ene, A;Epple, E;Escher, S;Eschle, J;Esen, S;Evans, T;Fabiano, F;Falcao, L N;Fan, Y;Fang, B;Fantini, L;Faria, M;Farry, S;Fazzini, D;Felkowski, L F;Feo, M;Fernandez Gomez, M;Fernez, A D;Ferrari, F;Ferreira Lopes, L;Ferreira Rodrigues, F;Ferreres Sole, S;Ferrillo, M;Ferro-Luzzi, M;Filippov, S;Fini, R A;Fiorini, M;Firlej, M;Fischer, K M;Fitzgerald, D S;Fitzpatrick, C;Fiutowski, T;Fleuret, F;Fontana, M;Fontanelli, F;Forty, R;Foulds-Holt, D;Franco Lima, V;Franco Sevilla, M;Frank, M;Franzoso, E;Frau, G;Frei, C;Friday, D A;Frontini, L;Fu, J;Fuehring, Q;Fulghesu, T;Gabriel, E;Galati, G;Galati, M D;Gallas Torreira, A;Galli, D;Gambetta, S;Gandelman, M;Gandini, P;Gao, H G;Gao, Y;Gao, Y;Garau, M;Garcia Martin, L M;Garcia Moreno, P;García Pardiñas, J;Garcia Plana, B;Garcia Rosales, F A;Garrido, L;Gaspar, C;Geertsema, R E;Gerick, D;Gerken, L L;Gersabeck, E;Gersabeck, M;Gershon, T;Giambastiani, L;Gibson, V;Giemza, H K;Gilman, A L;Giovannetti, M;Gioventù, A;Gironella Gironell, P;Giugliano, C;Giza, M A;Gizdov, K;Gkougkousis, E L;Gligorov, V V;Göbel, C;Golobardes, E;Golubkov, D;Golutvin, A;Gomes, A;Gomez Fernandez, S;Goncalves Abrantes, F;Goncerz, M;Gong, G;Gorelov, I V;Gotti, C;Grabowski, J P;Grammatico, T;Granado Cardoso, L A;Graugés, E;Graverini, E;Graziani, G;Grecu, A T;Greeven, L M;Grieser, N A;Grillo, L;Gromov, S;Gruberg Cazon, B R;Gu, C;Guarise, M;Guittiere, M;Günther, P A;Gushchin, E;Guth, A;Guz, Y;Gys, T;Hadavizadeh, T;Hadjivasiliou, C;Haefeli, G;Haen, C;Haimberger, J;Haines, S C;Halewood-Leagas, T;Halvorsen, M M;Hamilton, P M;Hammerich, J;Han, Q;Han, X;Hansmann-Menzemer, S;Hao, L;Harnew, N;Harrison, T;Hasse, C;Hatch, M;He, J;Heijhoff, K;Hemmer, F H;Henderson, C;Henderson, R D L;Hennequin, A M;Hennessy, K;Henry, L;Herd, J;Heuel, J;Hicheur, A;Hill, D;Hilton, M;Hollitt, S E;Horswill, J;Hou, R;Hou, Y;Hu, J;Hu, J;Hu, W;Hu, X;Huang, W;Huang, X;Hulsbergen, W;Hunter, R J;Hushchyn, M;Hutchcroft, D;Ibis, P;Idzik, M;Ilin, D;Ilten, P;Inglessi, A;Iniukhin, A;Ishteev, A;Ivshin, K;Jacobsson, R;Jage, H;Jaimes Elles, S J;Jakobsen, S;Jans, E;Jashal, B K;Jawahery, A;Jevtic, V;Jiang, E;Jiang, X;Jiang, Y;John, M;Johnson, D;Jones, C R;Jones, T P;Joshi, S J;Jost, B;Jurik, N;Juszczak, I;Kandybei, S;Kang, Y;Karacson, M;Karpenkov, D;Karpov, M;Kautz, J W;Keizer, F;Keller, D M;Kenzie, M;Ketel, T;Khanji, B;Kharisova, A;Kholodenko, S;Khreich, G;Kirn, T;Kirsebom, V S;Kitouni, O;Klaver, S;Kleijne, N;Klimaszewski, K;Kmiec, M R;Koliiev, S;Kolk, L;Kondybayeva, A;Konoplyannikov, A;Kopciewicz, P;Kopecna, R;Koppenburg, P;Korolev, M;Kostiuk, I;Kot, O;Kotriakhova, S;Kozachuk, A;Kravchenko, P;Kravchuk, L;Krawczyk, R D;Kreps, M;Kretzschmar, S;Krokovny, P;Krupa, W;Krzemien, W;Kubat, J;Kubis, S;Kucewicz, W;Kucharczyk, M;Kudryavtsev, V;Kulikova, E K;Kupsc, A;Lacarrere, D;Lafferty, G;Lai, A;Lampis, A;Lancierini, D;Landesa Gomez, C;Lane, J J;Lane, R;Langenbruch, C;Langer, J;Lantwin, O;Latham, T;Lazzari, F;Lazzaroni, M;Lazzeroni, C;Le Gac, R;Lee, S H;Lefèvre, R;Leflat, A;Legotin, S;Lenisa, P;Leroy, O;Lesiak, T;Leverington, B;Li, A;Li, H;Li, K;Li, P;Li, P-R;Li, S;Li, T;Li, T;Li, Y;Li, Z;Liang, X;Lin, C;Lin, T;Lindner, R;Lisovskyi, V;Litvinov, R;Liu, G;Liu, H;Liu, K;Liu, Q;Liu, S;Lobo Salvia, A;Loi, A;Lollini, R;Lomba Castro, J;Longstaff, I;Lopes, J H;Lopez Huertas, A;López Soliño, S;Lovell, G H;Lu, Y;Lucarelli, C;Lucchesi, D;Luchuk, S;Lucio Martinez, M;Lukashenko, V;Luo, Y;Lupato, A;Luppi, E;Lusiani, A;Lynch, K;Lyu, X-R;Ma, R;Maccolini, S;Machefert, F;Maciuc, F;Mackay, I;Macko, V;Madhan Mohan, L R;Maevskiy, A;Maisuzenko, D;Majewski, M W;Malczewski, J J;Malde, S;Malecki, B;Malinin, A;Maltsev, T;Manca, G;Mancinelli, G;Mancuso, C;Manera Escalero, R;Manuzzi, D;Manzari, C A;Marangotto, D;Marchand, J F;Marconi, U;Mariani, S;Marin Benito, C;Marks, J;Marshall, A M;Marshall, P J;Martelli, G;Martellotti, G;Martinazzoli, L;Martinelli, M;Martinez Santos, D;Martinez Vidal, F;Massafferri, A;Materok, M;Matev, R;Mathad, A;Matiunin, V;Matteuzzi, C;Mattioli, K R;Mauri, A;Maurice, E;Mauricio, J;Mazurek, M;McCann, M;Mcconnell, L;McGrath, T H;McHugh, N T;McNab, A;McNulty, R;Meadows, B;Meier, G;Melnychuk, D;Meloni, S;Merk, M;Merli, A;Meyer Garcia, L;Miao, D;Mikhasenko, M;Milanes, D A;Millard, E;Milovanovic, M;Minard, M-N;Minotti, A;Miralles, T;Mitchell, S E;Mitreska, B;Mitzel, D S;Modak, A;Mödden, A;Mohammed, R A;Moise, R D;Mokhnenko, S;Mombächer, T;Monk, M;Monroy, I A;Monteil, S;Morello, G;Morello, M J;Morgenthaler, M P;Moron, J;Morris, A B;Morris, A G;Mountain, R;Mu, H;Muhammad, E;Muheim, F;Mulder, M;Müller, K;Murphy, C H;Murray, D;Murta, R;Muzzetto, P;Naik, P;Nakada, T;Nandakumar, R;Nanut, T;Nasteva, I;Needham, M;Neri, N;Neubert, S;Neufeld, N;Neustroev, P;Newcombe, R;Nicolini, J;Nicotra, D;Niel, E M;Nieswand, S;Nikitin, N;Nolte, N S;Normand, C;Novoa Fernandez, J;Nowak, G N;Nunez, C;Oblakowska-Mucha, A;Obraztsov, V;Oeser, T;Okamura, S;Oldeman, R;Oliva, F;Onderwater, C J G;O'Neil, R H;Otalora Goicochea, J M;Ovsiannikova, T;Owen, P;Oyanguren, A;Ozcelik, O;Padeken, K O;Pagare, B;Pais, P R;Pajero, T;Palano, A;Palutan, M;Panshin, G;Paolucci, L;Papanestis, A;Pappagallo, M;Pappalardo, L L;Pappenheimer, C;Parker, W;Parkes, C;Passalacqua, B;Passaleva, G;Pastore, A;Patel, M;Patrignani, C;Pawley, C J;Pellegrino, A;Pepe Altarelli, M;Perazzini, S;Pereima, D;Pereiro Castro, A;Perret, P;Petridis, K;Petrolini, A;Petrucci, S;Petruzzo, M;Pham, H;Philippov, A;Piandani, R;Pica, L;Piccini, M;Pietrzyk, B;Pietrzyk, G;Pili, M;Pinci, D;Pisani, F;Pizzichemi, M;Placinta, V;Plews, J;Plo Casasus, M;Polci, F;Poli Lener, M;Poluektov, A;Polukhina, N;Polyakov, I;Polycarpo, E;Ponce, S;Popov, D;Poslavskii, S;Prasanth, K;Promberger, L;Prouve, C;Pugatch, V;Puill, V;Punzi, G;Qi, H R;Qian, W;Qin, N;Qu, S;Quagliani, R;Raab, N V;Rachwal, B;Rademacker, J H;Rajagopalan, R;Rama, M;Ramos Pernas, M;Rangel, M S;Ratnikov, F;Raven, G;Rebollo De Miguel, M;Redi, F;Reich, J;Reiss, F;Remon Alepuz, C;Ren, Z;Resmi, P K;Ribatti, R;Ricci, A M;Ricciardi, S;Richardson, K;Richardson-Slipper, M;Rinnert, K;Robbe, P;Robertson, G;Rodrigues, E;Rodriguez Fernandez, E;Rodriguez Lopez, J A;Rodriguez Rodriguez, E;Rolf, D L;Rollings, A;Roloff, P;Romanovskiy, V;Romero Lamas, M;Romero Vidal, A;Roth, J D;Rotondo, M;Rudolph, M S;Ruf, T;Ruiz Fernandez, R A;Ruiz Vidal, J;Ryzhikov, A;Ryzka, J;Saborido Silva, J J;Sagidova, N;Sahoo, N;Saitta, B;Salomoni, M;Sanchez Gras, C;Sanderswood, I;Santacesaria, R;Santamarina Rios, C;Santimaria, M;Santovetti, E;Saranin, D;Sarpis, G;Sarpis, M;Sarti, A;Satriano, C;Satta, A;Saur, M;Savrina, D;Sazak, H;Scantlebury Smead, L G;Scarabotto, A;Schael, S;Scherl, S;Schiller, M;Schindler, H;Schmelling, M;Schmidt, B;Schmitt, S;Schneider, O;Schopper, A;Schubiger, M;Schulte, S;Schune, M H;Schwemmer, R;Sciascia, B;Sciuccati, A;Sellam, S;Semennikov, A;Senghi Soares, M;Sergi, A;Serra, N;Sestini, L;Seuthe, A;Shang, Y;Shangase, D M;Shapkin, M;Shchemerov, I;Shchutska, L;Shears, T;Shekhtman, L;Shen, Z;Sheng, S;Shevchenko, V;Shi, B;Shields, E B;Shimizu, Y;Shmanin, E;Shorkin, R;Shupperd, J D;Siddi, B G;Silva Coutinho, R;Simi, G;Simone, S;Singla, M;Skidmore, N;Skuza, R;Skwarnicki, T;Slater, M W;Smallwood, J C;Smeaton, J G;Smith, E;Smith, K;Smith, M;Snoch, A;Soares Lavra, L;Sokoloff, M D;Soler, F J P;Solomin, A;Solovev, A;Solovyev, I;Song, R;Souza De Almeida, F L;Souza De Paula, B;Spaan, B;Spadaro Norella, E;Spedicato, E;Spiridenkov, E;Spradlin, P;Sriskaran, V;Stagni, F;Stahl, M;Stahl, S;Stanislaus, S;Stein, E N;Steinkamp, O;Stenyakin, O;Stevens, H;Strekalina, D;Su, Y S;Suljik, F;Sun, J;Sun, L;Sun, Y;Swallow, P N;Swientek, K;Szabelski, A;Szumlak, T;Szymanski, M;Tan, Y;Taneja, S;Tat, M D;Terentev, A;Teubert, F;Thomas, E;Thompson, D J D;Thomson, K A;Tilquin, H;Tisserand, V;T'Jampens, S;Tobin, M;Tomassetti, L;Tonani, G;Tong, X;Torres Machado, D;Tou, D Y;Trippl, C;Tuci, G;Tuning, N;Ukleja, A;Unverzagt, D J;Usachov, A;Ustyuzhanin, A;Uwer, U;Vagner, A;Vagnoni, V;Valassi, A;Valenti, G;Valls Canudas, N;Van Dijk, M;Van Hecke, H;van Herwijnen, E;Van Hulse, C B;van Veghel, M;Vazquez Gomez, R;Vazquez Regueiro, P;Vázquez Sierra, C;Vecchi, S;Velthuis, J J;Veltri, M;Venkateswaran, A;Veronesi, M;Vesterinen, M;Vieira, D;Vieites Diaz, M;Vilasis-Cardona, X;Vilella Figueras, E;Villa, A;Vincent, P;Volle, F C;Vom Bruch, D;Vorobyev, A;Vorobyev, V;Voropaev, N;Vos, K;Vrahas, C;Walsh, J;Walton, E J;Wan, G;Wang, C;Wang, G;Wang, J;Wang, J;Wang, J;Wang, J;Wang, M;Wang, R;Wang, X;Wang, Y;Wang, Z;Wang, Z;Wang, Z;Ward, J A;Watson, N K;Websdale, D;Wei, Y;Westhenry, B D C;White, D J;Whitehead, M;Wiederhold, A R;Wiedner, D;Wilkinson, G;Wilkinson, M K;Williams, I;Williams, M;Williams, M R J;Williams, R;Wilson, F F;Wislicki, W;Witek, M;Witola, L;Wong, C P;Wormser, G;Wotton, S A;Wu, H;Wu, J;Wyllie, K;Xiang, Z;Xie, Y;Xu, A;Xu, J;Xu, L;Xu, L;Xu, M;Xu, Q;Xu, Z;Xu, Z;Yang, D;Yang, S;Yang, X;Yang, Y;Yang, Z;Yang, Z;Yeomans, L E;Yeroshenko, V;Yeung, H;Yin, H;Yu, J;Yuan, X;Zaffaroni, E;Zavertyaev, M;Zdybal, M;Zeng, M;Zhang, C;Zhang, D;Zhang, L;Zhang, S;Zhang, S;Zhang, Y;Zhang, Y;Zhao, Y;Zharkova, A;Zhelezov, A;Zheng, Y;Zhou, T;Zhou, X;Zhou, Y;Zhovkovska, V;Zhu, X;Zhu, X;Zhu, Z;Zhukov, V;Zou, Q;Zucchelli, S;Zuliani, D;Zunica, G

2023-01-01

---

Abstract

Two new excited states, Ω_{c}(3185)^{0} and Ω_{c}(3327)^{0}, are observed in the Ξ_{c}^{+}K^{-} invariant-mass spectrum using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9  fb^{-1}. Five previously observed excited Ω_{c}^{0} states are confirmed, namely Ω_{c}(3000)^{0}, Ω_{c}(3050)^{0}, Ω_{c}(3065)^{0}, Ω_{c}(3090)^{0}, and Ω_{c}(3119)^{0}. The masses and widths of these seven states are measured with the highest precision to date.