☆ 4.0 Article

Charmed (70,1-) baryon multiplet

INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS (2008)

Journal

INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS

Volume 17, Issue 4, Pages 585-610

Publisher

WORLD SCIENTIFIC PUBL CO PTE LTD

DOI: 10.1142/S0218301308010027

Keywords

excited charmed baryons; dispersion relation technique

Categories

Physics, Nuclear Physics, Particles & Fields

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Abstract

The masses of negative parity (70, 1(-)) charmed nonstrange baryons are calculated in the relativistic quark model. The relativistic three-quark equations of the (70, 1(-)) charmed baryon multiplet are found in the framework of the dispersion relation technique. The approximate solutions of these equations using the method based on the extraction of leading singularities of the amplitude are obtained. The calculated mass values of the (70, 1(-)) charmed baryons are in good agreement with the experimental data.

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Article Astronomy & Astrophysics

First determination of the spin and parity of the charmed-strange baryon Ξc (2970)+

T. J. Moon, K. Tanida, Y. Kato, S. K. Kim, I Adachi, J. K. Ahn, H. Aihara, S. Al Said, D. M. Asner, V Aulchenko, T. Aushev, R. Ayad, V Babu, S. Bahinipati, P. Behera, C. Beleno, J. Bennett, M. Bessner, B. Bhuyan, T. Bilka, J. Biswal, G. Bonvicini, A. Bozek, M. Bracko, T. E. Browder, M. Campajola, L. Cao, D. Cervenkov, M-C Chang, P. Chang, A. Chen, B. G. Cheon, K. Chilikin, K. Cho, S-K Choi, Y. Choi, S. Choudhury, D. Cinabro, S. Cunliffe, N. Dash, G. De Nardo, F. Di Capua, Z. Dolezal, T. Dong, D. Dossett, S. Dubey, S. Eidelman, D. Epifanov, T. Ferber, B. G. Fulsom, R. Garg, V Gaur, N. Gabyshev, A. Garmash, A. Giri, P. Goldenzweig, B. Golob, C. Hadjivasiliou, O. Hartbrich, K. Hayasaka, H. Hayashii, M. T. Hedges, W-S Hou, C-L Hsu, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, W. W. Jacobs, S. Jia, Y. Jin, K. K. Joo, K. H. Kang, G. Karyan, T. Kawasaki, H. Kichimi, C. Kiesling, B. H. Kim, D. Y. Kim, K. T. Kim, S. H. Kim, Y. J. Kim, Y-K Kim, T. D. Kimmel, K. Kinoshita, P. Kodys, S. Korpar, D. Kotchetkov, P. Krizan, R. Kroeger, P. Krokovny, T. Kuhr, R. Kumar, K. Kumara, A. Kuzmin, Y-J Kwon, I. S. Lee, J. Y. Lee, S. C. Lee, L. K. Li, Y. B. Li, L. Li Gioi, J. Libby, Z. Liptak, D. Liventsev, T. Luo, C. MacQueen, M. Masuda, T. Matsuda, D. Matvienko, M. Merola, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, S. Mohanty, T. Mori, R. Mussa, T. Nakano, M. Nakao, Z. Natkaniec, A. Natochii, M. Nayak, M. Niiyama, N. K. Nisar, S. Nishida, K. Ogawa, S. Ogawa, H. Ono, P. Pakhlov, G. Pakhlova, S. Pardi, H. Park, S-H Park, S. Patra, S. Paul, T. K. Pedlar, R. Pestotnik, L. E. Piilonen, T. Podobnik, V Popov, E. Prencipe, M. T. Prim, M. Ritter, N. Rout, G. Russo, D. Sahoo, Y. Sakai, S. Sandilya, A. Sangal, L. Santelj, V Savinov, G. Schnell, J. Schueler, C. Schwanda, R. Seidl, Y. Seino, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, J-G Shiu, B. Shwartz, E. Solovieva, M. Sumihama, K. Sumisawa, T. Sumiyoshi, W. Sutcliffe, M. Takizawa, U. Tamponi, F. Tenchini, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, S. E. Vahsen, R. Van Tonder, G. Varner, A. Vinokurova, V. Vorobyev, A. Vossen, C. H. Wang, E. Wang, M-Z Wang, P. Wang, S. Wehle, J. Wiechczynski, X. Xu, B. D. Yabsley, S. B. Yang, H. Ye, J. Yelton, J. H. Yin, C. Z. Yuan, Z. P. Zhang, V Zhilich, V Zhukova, V Zhulanov

Summary: In this study, the spin and parity of Xi(c)(2970)(+) were determined using data collected by the Belle detector at the KEKB collider. The analysis of decay angle distributions favored a spin of 1/2 for this charmed-strange baryon. The measured ratio of decay branching fractions supported a spin-parity of 1/2(+) with a light-quark spin of 0, marking the first determination of these properties for a charmed-strange baryon.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Semileptonic weak decays of antitriplet charmed baryons in the light-front formalism

C. Q. Geng, Chia-Wei Liu, Tien-Hsueh Tsai

Summary: The semileptonic decays of B-c -> B(n)l(+)nu(l) were systematically studied using the light-front constituent quark model, determining the spin-flavor structures of the constituents in baryons and calculating decay branching ratios and asymmetry parameters. Results are in agreement with experimental data, with predictions for specific decays consistent with literature and verifiable through experiments. Some results for Xi(+(0))(c) semileptonic channels can be tested at various experimental facilities.

PHYSICAL REVIEW D (2021)

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Article Physics, Multidisciplinary

Observation of Two New Excited ?0b States Decaying to ?0bK -?+

R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta, T. Ackernley, B. Adeva, M. Adinolfi, H. Afsharnia, C. Agapopoulou, C. A. Aidala, S. Aiola, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, Z. Aliouche, G. Alkhazov, P. Alvarez Cartelle, S. Amato, J. L. Amey, Y. Amhis, L. An, L. Anderlini, A. Andreianov, M. Andreotti, F. Archilli, A. Artamonov, M. Artuso, K. Arzymatov, E. Aslanides, M. Atzeni, B. Audurier, S. Bachmann, M. Bachmayer, J. J. Back, P. Baladron Rodriguez, V Balagura, W. Baldini, J. Baptista Leite, M. Barbetti, R. J. Barlow, S. Barsuk, W. Barter, M. Bartolini, F. Baryshnikov, J. M. Basels, S. Bashir, G. Bassi, B. Batsukh, A. Battig, A. Bay, A. Beck, M. Becker, F. Bedeschi, I Bediaga, A. Beiter, V Belavin, S. Belin, V Bellee, K. Belous, I Belov, I Belyaev, G. Bencivenni, E. Ben-Haim, A. Berezhnoy, R. Bernet, D. Berninghoff, H. C. Bernstein, C. Bertella, A. Bertolin, C. Betancourt, F. Betti, Ia Bezshyiko, S. Bhasin, J. Bhom, L. Bian, M. S. Bieker, S. Bifani, P. Billoir, M. Birch, F. C. R. Bishop, A. Bitadze, A. Bizzeti, M. Bjorn, M. P. Blago, T. Blake, F. Blanc, S. Blusk, D. Bobulska, J. A. Boelhauve, O. Boente Garcia, T. Boettcher, A. Boldyrev, A. Bondar, N. Bondar, S. Borghi, M. Borisyak, M. Borsato, J. T. Borsuk, S. A. Bouchiba, T. J. Bowcock, A. Boyer, C. Bozzi, M. J. Bradley, S. Braun, A. Brea Rodriguez, M. Brodski, J. Brodzicka, A. Brossa Gonzalo, D. Brundu, A. Buonaura, L. Buonincontri, A. T. Burke, C. Burr, A. Bursche, A. Butkevich, J. S. Butter, J. Buytaert, W. Byczynski, S. Cadeddu, H. Cai, R. Calabrese, L. Calefice, L. Calero Diaz, S. Cali, R. Calladine, M. Calvi, M. Calvo Gomez, P. Camargo Magalhaes, P. Campana, A. F. Campoverde Quezada, S. Capelli, L. Capriotti, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, I Carli, P. Carniti, L. Carus, K. Carvalho Akiba, A. Casais Vidal, G. Casse, M. Cattaneo, G. Cavallero, S. Celani, J. Cerasoli, D. Cervenkov, A. J. Chadwick, M. G. Chapman, M. Charles, Ph Charpentier, G. Chatzikonstantinidis, C. A. Chavez Barajas, M. Chefdeville, C. Chen, S. Chen, A. Chernov, V Chobanova, S. Cholak, M. Chrzaszcz, A. Chubykin, V Chulikov, P. Ciambrone, M. F. Cicala, X. Cid Vidal, G. Ciezarek, P. E. L. Clarke, M. Clemencic, H. Cliff, J. Closier, J. L. Cobbledick, V Coco, J. A. B. Coelho, J. Cogan, E. Cogneras, L. Cojocariu, P. Collins, T. Colombo, L. Congedo, A. Contu, N. Cooke, G. Coombs, I Corredoira, G. Corti, C. M. Costa Sobral, B. Couturier, D. C. Craik, J. Crkovska, M. Cruz Torres, R. Currie, C. L. Da Silva, S. Dadabaev, L. Dai, E. Dall'Occo, J. Dalseno, C. D'Ambrosio, A. Danilina, P. D'Argent, J. E. Davies, A. Davis, O. De Aguiar Francisco, K. De Bruyn, S. De Capua, M. De Cian, J. M. De Miranda, L. De Paula, M. De Serio, D. De Simone, P. De Simone, J. A. de Vries, C. T. Dean, D. Decamp, V Dedu, L. Del Buono, B. Delaney, H-P Dembinski, A. Dendek, V Denysenko, D. Derkach, O. Deschamps, F. Desse, F. Dettori, B. Dey, A. Di Cicco, P. Di Nezza, S. Didenko, L. Dieste Maronas, H. Dijkstra, V Dobishuk, C. Dong, A. M. Donohoe, F. Dordei, A. C. dos Reis, L. Douglas, A. Dovbnya, A. G. Downes, M. W. Dudek, L. Dufour, V Duk, P. Durante, J. M. Durham, D. Dutta, A. Dziurda, A. Dzyuba, S. Easo, U. Egede, V Egorychev, S. Eidelman, S. Eisenhardt, S. Ek-In, L. Eklund, S. Ely, A. Ene, E. Epple, S. Escher, J. Eschle, S. Esen, T. Evans, A. Falabella, J. Fan, Y. Fan, B. Fang, S. Farry, D. Fazzini, M. Feo, A. Fernandez Prieto, A. D. Fernez, F. Ferrari, L. Ferreira Lopes, F. Ferreira Rodrigues, S. Ferreres Sole, M. Ferrillo, M. Ferro-Luzzi, S. Filippov, R. A. Fini, M. Fiorini, M. Firlej, K. M. Fischer, D. S. Fitzgerald, C. Fitzpatrick, T. Fiutowski, A. Fkiaras, F. Fleuret, M. Fontana, F. Fontanelli, R. Forty, D. Foulds-Holt, V. Franco Lima, M. Franco Sevilla, M. Frank, E. Franzoso, G. Frau, C. Frei, D. A. Friday, J. Fu, Q. Fuehring, E. Gabriel, A. Gallas Torreira, D. Galli, S. Gambetta, Y. Gan, M. Gandelman, P. Gandini, Y. Gao, M. Garau, L. M. Garcia Martin, P. Garcia Moreno, J. Garcia Pardinas, B. Garcia Plana, F. A. Garcia Rosales, L. Garrido, C. Gaspar, R. E. Geertsema, D. Gerick, L. L. Gerken, E. Gersabeck, M. Gersabeck, T. Gershon, D. Gerstel, Ph Ghez, L. Giambastiani, V Gibson, H. K. Giemza, A. L. Gilman, M. Giovannetti, A. Gioventu, P. Gironella Gironell, L. Giubega, C. Giugliano, K. Gizdov, E. L. Gkougkousis, V. V. Gligorov, C. Gobel, E. Golobardes, D. Golubkov, A. Golutvin, A. Gomes, S. Gomez Fernandez, F. Goncalves Abrantes, M. Goncerz, G. Gong, P. Gorbounov, I. Gorelov, C. Gotti, E. Govorkova, J. P. Grabowski, T. Grammatico, L. A. Granado Cardoso, E. Grauges, E. Graverini, G. Graziani, A. Grecu, L. M. Greeven, N. A. Grieser, L. Grillo, S. Gromov, B. R. Gruberg Cazon, C. Gu, M. Guarise, M. Guittiere, P. A. Gunther, E. Gushchin, A. Guth, Y. Guz, T. Gys, T. Hadavizadeh, G. Haefeli, C. Haen, J. Haimberger, T. Halewood-leagas, P. M. Hamilton, J. P. Hammerich, Q. Han, X. Han, T. H. Hancock, S. Hansmann-Menzemer, N. Harnew, T. Harrison, C. Hasse, M. Hatch, J. He, M. Hecker, K. Heijhoff, K. Heinicke, A. M. Hennequin, K. Hennessy, L. Henry, J. Heuel, A. Hicheur, D. Hill, M. Hilton, S. E. Hollitt, R. Hou, Y. Hou, J. Hu, J. Hu, W. Hu, X. Hu, W. Huang, X. Huang, W. Hulsbergen, R. J. Hunter, M. Hushchyn, D. Hutchcroft, D. Hynds, P. Ibis, M. Idzik, D. Ilin, P. Ilten, A. Inglessi, A. Ishteev, K. Ivshin, R. Jacobsson, H. Jage, S. Jakobsen, E. Jans, B. K. Jashal, A. Jawahery, V Jevtic, F. Jiang, M. John, D. Johnson, C. R. Jones, T. P. Jones, B. Jost, N. Jurik, S. H. Kalavan Kadavath, S. Kandybei, Y. Kang, M. Karacson, M. Karpov, F. Keizer, D. M. Keller, M. Kenzie, T. Ketel, B. Khanji, A. Kharisova, S. Kholodenko, T. Kirn, V. S. Kirsebom, O. Kitouni, S. Klaver, N. Kleijne, K. Klimaszewski, M. R. Kmiec, S. Koliiev, A. Kondybayeva, A. Konoplyannikov, P. Kopciewicz, R. Kopecna, P. Koppenburg, M. Korolev, I Kostiuk, O. Kot, S. Kotriakhova, P. Kravchenko, L. Kravchuk, R. D. Krawczyk, M. Kreps, F. Kress, S. Kretzschmar, P. Krokovny, W. Krupa, W. Krzemien, W. Kucewicz, M. Kucharczyk, V Kudryavtsev, H. S. Kuindersma, G. J. Kunde, T. Kvaratskheliya, D. Lacarrere, G. Lafferty, A. Lai, A. Lampis, D. Lancierini, J. J. Lane, R. Lane, G. Lanfranchi, C. Langenbruch, J. Langer, O. Lantwin, T. Latham, F. Lazzari, R. Le Gac, S. H. Lee, R. Lefevre, A. Leflat, S. Legotin, O. Leroy, T. Lesiak, B. Leverington, H. Li, P. Li, S. Li, Y. Li, Y. Li, Z. Li, X. Liang, T. Lin, R. Lindner, V Lisovskyi, R. Litvinov, G. Liu, H. Liu, Q. Liu, S. Liu, A. Lobo Salvia, A. Loi, J. Lomba Castro, I Longstaff, J. H. Lopes, S. Lopez Solino, G. H. Lovell, Y. Lu, C. Lucarelli, D. Lucchesi, S. Luchuk, M. Lucio Martinez, V Lukashenko, Y. Luo, A. Lupato, E. Luppi, O. Lupton, A. Lusiani, X. Lyu, L. Ma, R. Ma, S. Maccolini, F. Machefert, F. Maciuc, V Macko, P. Mackowiak, S. Maddrell-Mander, O. Madejczyk, L. R. Madhan Mohan, O. Maev, A. Maevskiy, D. Maisuzenko, M. W. Majewski, J. J. Malczewski, S. Malde, B. Malecki, A. Malinin, T. Maltsev, H. Malygina, G. Manca, G. Mancinelli, D. Manuzzi, D. Marangotto, J. Maratas, J. F. Marchand, U. Marconi, S. Mariani, C. Marin Benito, M. Marinangeli, J. Marks, A. M. Marshall, P. J. Marshall, G. Martelli, G. Martellotti, L. Martinazzoli, M. Martinelli, D. Martinez Santos, F. Martinez Vidal, A. Massafferri, M. Materok, R. Matev, A. Mathad, Z. Mathe, V Matiunin, C. Matteuzzi, K. R. Mattioli, A. Mauri, E. Maurice, J. Mauricio, M. Mazurek, M. McCann, L. Mcconnell, T. H. Mcgrath, N. T. Mchugh, A. McNab, R. McNulty, J. Mead, B. Meadows, G. Meier, N. Meinert, D. Melnychuk, S. Meloni, M. Merk, A. Merli, L. Meyer Garcia, M. Mikhasenko, D. A. Milanes, E. Millard, M. Milovanovic, M-N Minard, A. Minotti, L. Minzoni, S. E. Mitchell, B. Mitreska, D. S. Mitzel, A. Modden, R. A. Mohammed, R. D. Moise, T. Mombacher, I. A. Monroy, S. Monteil, M. Morandin, G. Morello, M. J. Morello, J. Moron, A. B. Morris, A. G. Morris, R. Mountain, H. Mu, F. Muheim, M. Mulder, D. Muller, K. Muller, C. H. Murphy, D. Murray, P. Muzzetto, P. Naik, T. Nakada, R. Nandakumar, T. Nanut, I Nasteva, M. Needham, I Neri, N. Neri, S. Neubert, N. Neufeld, R. Newcombe, T. D. Nguyen, C. Nguyen-Mau, E. M. Niel, S. Nieswand, N. Nikitin, N. S. Nolte, C. Normand, C. Nunez, A. Oblakowska-Mucha, V Obraztsov, T. Oeser, D. P. O'Hanlon, S. Okamura, R. Oldeman, F. Oliva, M. E. Olivares, C. J. G. Onderwater, R. H. O'Neil, A. Ossowska, J. M. Otalora Goicochea, T. Ovsiannikova, P. Owen, A. Oyanguren, K. O. Padeken, B. Pagare, P. R. Pais, T. Pajero, A. Palano, M. Palutan, Y. Pan, G. Panshin, A. Papanestis, M. Pappagallo, L. L. Pappalardo, C. Pappenheimer, W. Parker, C. Parkes, B. Passalacqua, G. Passaleva, A. Pastore, M. Patel, C. Patrignani, C. J. Pawley, A. Pearce, A. Pellegrino, M. Pepe Altarelli, S. Perazzini, D. Pereima, A. Pereiro Castro, P. Perret, M. Petric, K. Petridis, A. Petrolini, A. Petrov, S. Petrucci, M. Petruzzo, T. T. H. Pham, A. Philippov, L. Pica, M. Piccini, B. Pietrzyk, G. Pietrzyk, M. Pili, D. Pinci, F. Pisani, M. Pizzichemi, P. K. Resmi, V Placinta, J. Plews, M. Plo Casasus, F. Polci, M. Poli Lener, M. Poliakova, A. Poluektov, N. Polukhina, I Polyakov, E. Polycarpo, S. Ponce, D. Popov, S. Popov, S. Poslavskii, K. Prasanth, L. Promberger, C. Prouve, V Pugatch, V Puill, H. Pullen, G. Punzi, H. Qi, W. Qian, J. Qin, N. Qin, R. Quagliani, B. Quintana, N. Raab, R. I. Rabadan Trejo, B. Rachwal, J. H. Rademacker, M. Rama, M. Ramos Pernas, M. S. Rangel, F. Ratnikov, G. Raven, M. Reboud, F. Redi, F. Reiss, C. Remon Alepuz, Z. Ren, V Renaudin, R. Ribatti, S. Ricciardi, K. Rinnert, P. Robbe, G. Robertson, A. B. Rodrigues, E. Rodrigues, J. A. Rodriguez Lopez, E. R. R. Rodriguez Rodriguez, A. Rollings, P. Roloff, V Romanovskiy, M. Romero Lamas, A. Romero Vidal, J. D. Roth, M. Rotondo, M. S. Rudolph, T. Ruf, R. A. Ruiz Fernandez, J. Ruiz Vidal, A. Ryzhikov, J. Ryzka, J. J. Saborido Silva, N. Sagidova, N. Sahoo, B. Saitta, M. Salomoni, C. Sanchez Gras, R. Santacesaria, C. Santamarina Rios, M. Santimaria, E. Santovetti, D. Saranin, G. Sarpis, M. Sarpis, A. Sarti, C. Satriano, A. Satta, M. Saur, D. Savrina, H. Sazak, L. G. Scantlebury Smead, A. Scarabotto, S. Schael, S. Scherl, M. Schiller, H. Schindler, M. Schmelling, B. Schmidt, S. Schmitt, O. Schneider, A. Schopper, M. Schubiger, S. Schulte, M. H. Schune, R. Schwemmer, B. Sciascia, S. Sellam, A. Semennikov, M. Senghi Soares, A. Sergi, N. Serra, L. Sestini, A. Seuthe, Y. Shang, D. M. Shangase, M. Shapkin, I Shchemerov, L. Shchutska, T. Shears, L. Shekhtman, Z. Shen, V Shevchenko, E. B. Shields, Y. Shimizu, E. Shmanin, J. D. Shupperd, B. G. Siddi, R. Silva Coutinho, G. Simi, S. Simone, N. Skidmore, T. Skwarnicki, M. W. Slater, I Slazyk, J. C. Smallwood, J. G. Smeaton, A. Smetkina, E. Smith, M. Smith, A. Snoch, M. Soares, L. Soares Lavra, M. D. Sokoloff, F. J. P. Soler, A. Solovev, I Solovyev, F. L. Souza De Almeida, B. Souza De Paula, B. Spaan, E. Spadaro Norella, P. Spradlin, F. Stagni, M. Stahl, S. Stahl, S. Stanislaus, O. Steinkamp, O. Stenyakin, H. Stevens, S. Stone, M. Straticiuc, D. Strekalina, F. Suljik, J. Sun, L. Sun, Y. Sun, P. Svihra, P. N. Swallow, K. Swientek, A. Szabelski, T. Szumlak, M. Szymanski, S. Taneja, A. R. Tanner, M. D. Tat, A. Terentev, F. Teubert, E. Thomas, D. J. D. Thompson, K. A. Thomson, V Tisserand, S. T'Jampens, M. Tobin, L. Tomassetti, X. Tong, D. Torres Machado, D. Y. Tou, M. T. Tran, E. Trifonova, C. Trippl, G. Tuci, A. Tully, N. Tuning, A. Ukleja, D. J. Unverzagt, E. Ursov, A. Usachov, A. Ustyuzhanin, U. Uwer, A. Vagner, V. Vagnoni, A. Valassi, G. Valenti, N. Valls Canudas, M. van Beuzekom, M. Van Dijk, E. van Herwijnen, C. B. Van Hulse, M. van Veghel, R. Vazquez Gomez, P. Vazquez Regueiro, C. Vazquez Sierra, S. Vecchi, J. J. Velthuis, M. Veltri, A. Venkateswaran, M. Veronesi, M. Vesterinen, D. Vieira, M. Vieites Diaz, H. Viemann, X. Vilasis-Cardona, E. Vilella Figueras, A. Villa, P. Vincent, F. C. Volle, D. Vom Bruch, A. Vorobyev, V. Vorobyev, N. Voropaev, K. Vos, R. Waldi, J. Walsh, C. Wang, J. Wang, J. Wang, J. Wang, J. Wang, M. Wang, R. Wang, Y. Wang, Z. Wang, Z. Wang, Z. Wang, J. A. Ward, N. K. Watson, S. G. Weber, D. Websdale, C. Weisser, B. D. C. Westhenry, D. J. White, M. Whitehead, A. R. Wiederhold, D. Wiedner, G. Wilkinson, M. Wilkinson, I Williams, M. Williams, M. R. J. Williams, F. F. Wilson, W. Wislicki, M. Witek, L. Witola, G. Wormser, S. A. Wotton, H. Wu, K. Wyllie, Z. Xiang, D. Xiao, Y. Xie, A. Xu, J. Xu, L. Xu, M. Xu, Q. Xu, Z. Xu, Z. Xu, D. Yang, S. Yang, Y. Yang, Z. Yang, Z. Yang, Y. Yao, L. E. Yeomans, H. Yin, J. Yu, X. Yuan, O. Yushchenko, E. Zaffaroni, M. Zavertyaev, M. Zdybal, O. Zenaiev, M. Zeng, D. Zhang, L. Zhang, S. Zhang, S. Zhang, Y. Zhang, Y. Zhang, A. Zharkova, A. Zhelezov, Y. Zheng, T. Zhou, X. Zhou, Y. Zhou, V Zhovkovska, X. Zhu, X. Zhu, Z. Zhu, V Zhukov, J. B. Zonneveld, Q. Zou, S. Zucchelli, D. Zuliani, G. Zunica

Summary: Two narrow resonant states, identified as excited Ω0b baryons, are observed in the ρ0ΩbK- mass spectrum using data from the LHCb experiment. Their masses, widths, and resonant structure are in good agreement with the expectations for a doublet of 1D Ω0b resonances.

PHYSICAL REVIEW LETTERS (2022)

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Article Astronomy & Astrophysics

A new group of doubly charmed molecule with T-doublet charmed meson pair

Fu-Lai Wang, Rui Chen, Xiang Liu

Summary: This study systematically investigates the S-wave interactions between a pair of charmed mesons and proposes potential candidates for doubly charmed molecular tetraquark states. The authors suggest further experiments by LHCb or Belle II to search for these predicted states near the energy thresholds.

PHYSICS LETTERS B (2022)

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Article Astronomy & Astrophysics

Ground and excited state masses of Ω Ω baryons

Juhi Oudichhya, Keval Gandhi, Ajay Kumar Rai

Summary: The study calculates the masses of ground and excited states of Omega(0)(c), Omega(+)(cc) and Omega c(cc)(*)(++) baryons within the framework of Regge phenomenology, attempting to assign a possible spin-parity to these obtained masses. The calculated masses are in agreement with experimental observations and close to other theoretical predictions, providing useful information for future experimental searches and spin-parity assignments of these states. By fixing the slope and intercept of each Regge line, the study also estimates the masses of higher excited states of these baryons.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Semileptonic decays of doubly charmed baryons in the bag model

Chao-Qiang Geng, Chia-Wei Liu, Xiao Yu, Ao-wen Zhou

Summary: In this study, we investigate the semileptonic decays of B-cc using the bag model. We calculate the decay widths for different decay modes and the decay ratio of B-cc to B-c. We also discuss the effects of SU(3) flavor symmetry breaking.

PHYSICAL REVIEW D (2023)

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Article Astronomy & Astrophysics

Inclusive weak-annihilation decays and lifetimes of beauty-charmed baryons

Guo-He Yang, En -Pei Liang, Qin Qin, Kang-Kang Shao

Summary: Imbalanced beauty-charmed baryons Xi(+,0)(bc) bc are of great significance to the development of heavy flavor physics. This study examines the inclusive weak-annihilation decays of Xi(+,0)(bc) and the impact on their lifetimes. The calculations are done within the heavy diquark effective theory, which allows for the construction of the operator product expansion. The results show that both the lifetimes and the branching ratios of Xi(+,0)(bc) are highly sensitive to the spin of the bc diquark in Xi(+,0)(bc). The study also presents results for Xi(+,0)(bc) -> X-cd decays. Experimental searches for Xi(0)(bc) at the LHC should focus on exclusive decays such as Xi(+)(bc) -> D(*)+ Lambda, Xi(+)(bc) -> Lambda(+)(c) (K) over bar ((*)0), Xi(+)(bc) -> D(*)+ K(-)p, and Xi(+)(bc) -> D-0 (K) over bar ((*)0), as they have longer lifetimes and larger branching ratios compared to Xi(0)(bc) -> D(0)pK(-).

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