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Measurement of the Ξb− and Ωb− baryon lifetimes
- Collaboration, LHCb;
- Aaij, R;
- Adeva, B;
- Adinolfi, M;
- Affolder, A;
- Ajaltouni, Z;
- Albrecht, J;
- Alessio, F;
- Alexander, M;
- Ali, S;
- Alkhazov, G;
- Cartelle, P Alvarez;
- Alves, AA;
- Amato, S;
- Amerio, S;
- Amhis, Y;
- An, L;
- Anderlini, L;
- Anderson, J;
- Andreassen, R;
- Andreotti, M;
- Andrews, JE;
- Appleby, RB;
- Gutierrez, O Aquines;
- Archilli, F;
- Artamonov, A;
- Artuso, M;
- Aslanides, E;
- Auriemma, G;
- Baalouch, M;
- Bachmann, S;
- Back, JJ;
- Badalov, A;
- Balagura, V;
- Baldini, W;
- Barlow, RJ;
- Barschel, C;
- Barsuk, S;
- Barter, W;
- Batozskaya, V;
- Bauer, Th;
- Bay, A;
- Beddow, J;
- Bedeschi, F;
- Bediaga, I;
- Belogurov, S;
- Belous, K;
- Belyaev, I;
- Ben-Haim, E;
- 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;
- Borsato, M;
- Bowcock, TJV;
- Bowen, E;
- Bozzi, C;
- Brambach, T;
- van den Brand, J;
- Bressieux, J;
- Brett, D;
- Britsch, M;
- Britton, T;
- Brook, NH;
- Brown, H;
- Bursche, A;
- Busetto, G;
- Buytaert, J;
- Cadeddu, S;
- Calabrese, R;
- Calvi, M;
- Gomez, M Calvo;
- Camboni, A;
- Campana, P;
- Perez, D Campora;
- Carbone, A;
- Carboni, G;
- Cardinale, R;
- Cardini, A;
- Carranza-Mejia, H;
- Carson, L;
- Akiba, K Carvalho;
- Casse, G;
- Cassina, L;
- Garcia, L Castillo;
- Cattaneo, M;
- Cauet, Ch;
- Cenci, R;
- Charles, M;
- Charpentier, Ph;
- Cheung, S-F;
- Chiapolini, N;
- Chrzaszcz, M;
- Ciba, K;
- Vidal, X Cid;
- Ciezarek, G;
- Clarke, PEL;
- Clemencic, M;
- Cliff, HV;
- Closier, J;
- Coco, V;
- Cogan, J;
- Cogneras, E;
- Collins, P;
- Comerma-Montells, A;
- Contu, A;
- Cook, A;
- Coombes, M;
- Coquereau, S;
- Corti, G;
- Corvo, M;
- Counts, I;
- Couturier, B;
- Cowan, GA;
- Craik, DC;
- Torres, M Cruz;
- Cunliffe, S;
- Currie, R;
- D'Ambrosio, C;
- Dalseno, J;
- David, P;
- David, PNY;
- Davis, A;
- De Bruyn, K;
- De Capua, S;
- De Cian, M;
- De Miranda, JM;
- De Paula, L;
- De Silva, W;
- De Simone, P;
- Decamp, D;
- Deckenhoff, M;
- Del Buono, L;
- Déléage, N;
- Derkach, D;
- Deschamps, O;
- Dettori, F;
- Di Canto, A;
- Dijkstra, H;
- Donleavy, S;
- Dordei, F;
- Dorigo, M;
- Suárez, A Dosil;
- Dossett, D;
- Dovbnya, A;
- Dupertuis, F;
- Durante, P;
- Dzhelyadin, R;
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- Egorychev, V;
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- Furfaro, E;
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- Galli, D;
- Gallorini, S;
- Gambetta, S;
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- Gavardi, L;
- Gersabeck, E;
- Gersabeck, M;
- Gershon, T;
- Ghez, Ph;
- Gianelle, A;
- Gianì, S;
- Gibson, V;
- Giubega, L;
- Gligorov, VV;
- Göbel, C;
- Golubkov, D;
- Golutvin, A;
- Gomes, A;
- Gordon, H;
- Gotti, C;
- Gándara, M Grabalosa;
- Diaz, R Graciani;
- Cardoso, LA Granado;
- Graugés, E;
- Graziani, G;
- Grecu, A;
- Greening, E;
- Gregson, S;
- Griffith, P;
- Grillo, L;
- Grünberg, O;
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- Hamilton, B;
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- Hansmann-Menzemer, S;
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- Harrison, J;
- Hartmann, T;
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- Henry, L;
- Morata, JA Hernando;
- van Herwijnen, E;
- Heß, M;
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- Hulsbergen, W;
- Hunt, P;
- Hussain, N;
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- Ilten, P;
- Jacobsson, R;
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- Jaton, P;
- Jawahery, A;
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- Jing, F;
- John, M;
- Johnson, D;
- Jones, CR;
- Joram, C;
- Jost, B;
- Jurik, N;
- Kaballo, M;
- Kandybei, S;
- Kanso, W;
- Karacson, M;
- Karbach, TM;
- Kelsey, M;
- Kenyon, IR;
- Ketel, T;
- Khanji, B;
- Khurewathanakul, C;
- Klaver, S;
- Kochebina, O;
- Kolpin, M;
- Komarov, I;
- Koopman, RF;
- Koppenburg, P;
- Korolev, M;
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- Kravchuk, L;
- Kreplin, K;
- Kreps, M;
- Krocker, G;
- Krokovny, P;
- Kruse, F;
- Kucharczyk, M;
- Kudryavtsev, V;
- Kurek, K;
- Kvaratskheliya, T;
- La Thi, VN;
- Lacarrere, D;
- Lafferty, G;
- Lai, A;
- Lambert, D;
- Lambert, RW;
- Lanciotti, E;
- Lanfranchi, G;
- Langenbruch, C;
- Langhans, B;
- Latham, T;
- Lazzeroni, C;
- Le Gac, R;
- van Leerdam, J;
- Lees, J-P;
- Lefèvre, R;
- Leflat, A;
- Lefrançois, J;
- Leo, S;
- Leroy, O;
- Lesiak, T;
- Leverington, B;
- Li, Y;
- Liles, M;
- Lindner, R;
- Linn, C;
- Lionetto, F;
- Liu, B;
- Liu, G;
- Lohn, S;
- Longstaff, I;
- Lopes, JH;
- Lopez-March, N;
- Lowdon, P;
- Lu, H;
- Lucchesi, D;
- Luo, H;
- Lupato, A;
- Luppi, E;
- Lupton, O;
- Machefert, F;
- Machikhiliyan, IV;
- Maciuc, F;
- Maev, O;
- Malde, S;
- Manca, G;
- Mancinelli, G;
- Manzali, M;
- Maratas, J;
- Marchand, JF;
- Marconi, U;
- Benito, C Marin;
- Marino, P;
- Märki, R;
- Marks, J;
- Martellotti, G;
- Martens, A;
- Sánchez, A Martín;
- Martinelli, M;
- Santos, D Martinez;
- Vidal, F Martinez;
- Tostes, D Martins;
- Massafferri, A;
- Matev, R;
- Mathe, Z;
- Matteuzzi, C;
- Mazurov, A;
- McCann, M;
- McCarthy, J;
- McNab, A;
- McNulty, R;
- McSkelly, B;
- Meadows, B;
- Meier, F;
- Meissner, M;
- Merk, M;
- Milanes, DA;
- Minard, M-N;
- Moggi, N;
- Rodriguez, J Molina;
- Monteil, S;
- Moran, D;
- Morandin, M;
- Morawski, P;
- Mordà, A;
- Morello, MJ;
- Moron, J;
- Mountain, R;
- Muheim, F;
- Müller, K;
- Muresan, R;
- Mussini, M;
- Muster, B;
- Naik, P;
- Nakada, T;
- Nandakumar, R;
- Nasteva, I;
- Needham, M;
- Neri, N;
- Neubert, S;
- Neufeld, N;
- Neuner, M;
- Nguyen, AD;
- Nguyen, TD;
- Nguyen-Mau, C;
- Nicol, M;
- Niess, V;
- Niet, R;
- Nikitin, N;
- Nikodem, T;
- Novoselov, A;
- Oblakowska-Mucha, A;
- Obraztsov, V;
- Oggero, S;
- Ogilvy, S;
- Okhrimenko, O;
- Oldeman, R;
- Onderwater, G;
- Orlandea, M;
- Goicochea, JM Otalora;
- Owen, P;
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- Parkes, C;
- Parkinson, CJ;
- Passaleva, G;
- Patel, GD;
- Patel, M;
- Patrignani, C;
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- Pearce, A;
- Pellegrino, A;
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- Perazzini, S;
- Trigo, E Perez;
- Perret, P;
- Perrin-Terrin, M;
- Pescatore, L;
- Pesen, E;
- Petridis, K;
- Petrolini, A;
- Olloqui, E Picatoste;
- Pietrzyk, B;
- Pilař, T;
- Pinci, D;
- Pistone, A;
- Playfer, S;
- Casasus, M Plo;
- Polci, F;
- Poluektov, A;
- Polycarpo, E;
- Popov, A;
- Popov, D;
- Popovici, B;
- Potterat, C;
- Powell, A;
- Prisciandaro, J;
- Pritchard, A;
- Prouve, C;
- Pugatch, V;
- Navarro, A Puig;
- Punzi, G;
- Qian, W;
- Rachwal, B;
- Rademacker, JH;
- Rakotomiaramanana, B;
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- Rangel, MS;
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- dos Reis, AC;
- Ricciardi, S;
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- Watson, NK;
- Websdale, D;
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- Wotton, SA;
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- Xing, Z;
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- Yuan, X;
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- Zangoli, M;
- Zavertyaev, M;
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Published Web Location
https://doi.org/10.1016/j.physletb.2014.06.064No data is associated with this publication.
Abstract
Using a data sample of pp collisions corresponding to an integrated luminosity of 3 fb−1, the Ξb− and Ωb− baryons are reconstructed in the Ξb−→J/ψΞ− and Ωb−→J/ψΩ− decay modes and their lifetimes measured to beτ(Ξb−)=1.55−0.09+0.10 (stat)±0.03 (syst) ps,τ(Ωb−)=1.54−0.21+0.26 (stat)±0.05 (syst) ps. These are the most precise determinations to date. Both measurements are in good agreement with previous experimental results and with theoretical predictions.
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