Precision measurement of the ratio of the $Λ^0_b$ to $\overline{B}^0$ lifetimes
Creators: name: LHCb Collaboration
name: Aaij, R.
name: Adeva, B.
name: Adinolfi, M.
name: Affolder, A.
name: Ajaltouni, Z.
name: Albrecht, J.
name: Alessio, F.
name: Alexander, M.
name: Ali, S.
name: Alkhazov, G.
name: Cartelle, P. Alvarez
name: Alves, A. A.
name: Amato, S.
name: Amerio, S.
name: Amhis, Y.
name: Anderlini, L.
name: Anderson, J.
name: Andreassen, R.
name: Andreotti, M.
name: Andrews, J. E.
name: Appleby, R. B.
name: Gutierrez, O. Aquines
name: Archilli, F.
name: Artamonov, A.
name: Artuso, M.
name: Aslanides, E.
name: Auriemma, G.
name: Baalouch, M.
name: Bachmann, S.
name: Back, J. J.
name: Badalov, A.
name: Balagura, V.
name: Baldini, W.
name: Barlow, R. J.
name: Barschel, C.
name: Barsuk, S.
name: Barter, W.
name: Batozskaya, V.
name: Bauer, Th.
name: Bay, A.
name: Beddow, J.
name: Bedeschi, F.
name: Bediaga, I.
name: Belogurov, S.
name: Belous, K.
name: Belyaev, I.
name: Ben-Haim, E.
name: Bencivenni, G.
name: Benson, S.
name: Benton, J.
name: Berezhnoy, A.
name: Bernet, R.
name: Bettler, M. -O.
name: van Beuzekom, M.
name: Bien, A.
name: Bifani, S.
name: Bird, T.
name: Bizzeti, A.
name: Bjørnstad, P. M.
name: Blake, T.
name: Blanc, F.
name: Blouw, J.
name: Blusk, S.
name: Bocci, V.
name: Bondar, A.
name: Bondar, N.
name: Bonivento, W.
name: Borghi, S.
name: Borgia, A.
name: Borsato, M.
name: Bowcock, T. J. V.
name: Bowen, E.
name: Bozzi, C.
name: Brambach, T.
name: Brand, J. van den
name: Bressieux, J.
name: Brett, D.
name: Britsch, M.
name: Britton, T.
name: Brook, N. H.
name: Brown, H.
name: Bursche, A.
name: Busetto, G.
name: Buytaert, J.
name: Cadeddu, S.
name: Calabrese, R.
name: Callot, O.
name: Calvi, M.
name: Gomez, M. Calvo
name: Camboni, A.
name: Campana, P.
name: Perez, D. Campora
name: Caponio, F.
name: Carbone, A.
name: Carboni, G.
name: Cardinale, R.
name: Cardini, A.
name: Carranza-Mejia, H.
name: Carson, L.
name: Akiba, K. Carvalho
name: Casse, G.
name: Cassina, L.
name: Garcia, L. Castillo
name: Cattaneo, M.
name: Cauet, Ch.
name: Cenci, R.
name: Charles, M.
name: Charpentier, Ph.
name: Cheung, S. -F.
name: Chiapolini, N.
name: Chrzaszcz, M.
name: Ciba, K.
name: Vidal, X. Cid
name: Ciezarek, G.
name: Clarke, P. E. L.
name: Clemencic, M.
name: Cliff, H. V.
name: Closier, J.
name: Coca, C.
name: Coco, V.
name: Cogan, J.
name: Cogneras, E.
name: Collins, P.
name: Comerma-Montells, A.
name: Contu, A.
name: Cook, A.
name: Coombes, M.
name: Coquereau, S.
name: Corti, G.
name: Counts, I.
name: Couturier, B.
name: Cowan, G. A.
name: Craik, D. C.
name: Torres, M. Cruz
name: Cunliffe, S.
name: Currie, R.
name: D'Ambrosio, C.
name: Dalseno, J.
name: David, P.
name: David, P. N. Y.
name: Davis, A.
name: De Bonis, I.
name: De Bruyn, K.
name: De Capua, S.
name: De Cian, M.
name: De Miranda, J. M.
name: De Paula, L.
name: De Silva, W.
name: De Simone, P.
name: Decamp, D.
name: Deckenhoff, M.
name: Del Buono, L.
name: Déléage, N.
name: Derkach, D.
name: Deschamps, O.
name: Dettori, F.
name: Di Canto, A.
name: Dijkstra, H.
name: Donleavy, S.
name: Dordei, F.
name: Dorigo, M.
name: Dorosz, P.
name: Suárez, A. Dosil
name: Dossett, D.
name: Dovbnya, A.
name: Dupertuis, F.
name: Durante, P.
name: Dzhelyadin, R.
name: Dziurda, A.
name: Dzyuba, A.
name: Easo, S.
name: Egede, U.
name: Egorychev, V.
name: Eidelman, S.
name: Eisenhardt, S.
name: Eitschberger, U.
name: Ekelhof, R.
name: Eklund, L.
name: Rifai, I. El
name: Elsasser, Ch.
name: Esen, S.
name: Falabella, A.
name: Färber, C.
name: Farinelli, C.
name: Farry, S.
name: Ferguson, D.
name: Albor, V. Fernandez
name: Rodrigues, F. Ferreira
name: Ferro-Luzzi, M.
name: Filippov, S.
name: Fiore, M.
name: Fiorini, M.
name: Fitzpatrick, C.
name: Fontana, M.
name: Fontanelli, F.
name: Forty, R.
name: Francisco, O.
name: Frank, M.
name: Frei, C.
name: Frosini, M.
name: Fu, J.
name: Furfaro, E.
name: Torreira, A. Gallas
name: Galli, D.
name: Gambetta, S.
name: Gandelman, M.
name: Gandini, P.
name: Gao, Y.
name: Garofoli, J.
name: Tico, J. Garra
name: Garrido, L.
name: Gaspar, C.
name: Gauld, R.
name: Gavardi, L.
name: Gersabeck, E.
name: Gersabeck, M.
name: Gershon, T.
name: Ghez, Ph.
name: Gianelle, A.
name: Giani', S.
name: Gibson, V.
name: Giubega, L.
name: Gligorov, V. V.
name: Göbel, C.
name: Golubkov, D.
name: Golutvin, A.
name: Gomes, A.
name: Gordon, H.
name: Gándara, M. Grabalosa
name: Diaz, R. Graciani
name: Cardoso, L. A. Granado
name: Graugés, E.
name: Graziani, G.
name: Grecu, A.
name: Greening, E.
name: Gregson, S.
name: Griffith, P.
name: Grillo, L.
name: Grünberg, O.
name: Gui, B.
name: Gushchin, E.
name: Guz, Yu.
name: Gys, T.
name: Hadjivasiliou, C.
name: Haefeli, G.
name: Haen, C.
name: Hafkenscheid, T. W.
name: Haines, S. C.
name: Hall, S.
name: Hamilton, B.
name: Hampson, T.
name: Hansmann-Menzemer, S.
name: Harnew, N.
name: Harnew, S. T.
name: Harrison, J.
name: Hartmann, T.
name: He, J.
name: Head, T.
name: Heijne, V.
name: Hennessy, K.
name: Henrard, P.
name: Henry, L.
name: Morata, J. A. Hernando
name: van Herwijnen, E.
name: Heß, M.
name: Hicheur, A.
name: Hill, D.
name: Hoballah, M.
name: Hombach, C.
name: Hulsbergen, W.
name: Hunt, P.
name: Hussain, N.
name: Hutchcroft, D.
name: Hynds, D.
name: Idzik, M.
name: Ilten, P.
name: Jacobsson, R.
name: Jaeger, A.
name: Jans, E.
name: Jaton, P.
name: Jawahery, A.
name: Jing, F.
name: John, M.
name: Johnson, D.
name: Jones, C. R.
name: Joram, C.
name: Jost, B.
name: Jurik, N.
name: Kaballo, M.
name: Kandybei, S.
name: Kanso, W.
name: Karacson, M.
name: Karbach, T. M.
name: Kelsey, M.
name: Kenyon, I. R.
name: Ketel, T.
name: Khanji, B.
name: Khurewathanakul, C.
name: Klaver, S.
name: Kochebina, O.
name: Komarov, I.
name: Koopman, R. F.
name: Koppenburg, P.
name: Korolev, M.
name: Kozlinskiy, A.
name: Kravchuk, L.
name: Kreplin, K.
name: Kreps, M.
name: Krocker, G.
name: Krokovny, P.
name: Kruse, F.
name: Kucharczyk, M.
name: Kudryavtsev, V.
name: Kurek, K.
name: Kvaratskheliya, T.
name: La Thi, V. N.
name: Lacarrere, D.
name: Lafferty, G.
name: Lai, A.
name: Lambert, D.
name: Lambert, R. W.
name: Lanciotti, E.
name: Lanfranchi, G.
name: Langenbruch, C.
name: Langhans, B.
name: Latham, T.
name: Lazzeroni, C.
name: Gac, R. Le
name: van Leerdam, J.
name: Lees, J. -P.
name: Lefèvre, R.
name: Leflat, A.
name: Lefrançois, J.
name: Leo, S.
name: Leroy, O.
name: Lesiak, T.
name: Leverington, B.
name: Li, Y.
name: Liles, M.
name: Lindner, R.
name: Linn, C.
name: Lionetto, F.
name: Liu, B.
name: Liu, G.
name: Lohn, S.
name: Longstaff, I.
name: Lopes, J. H.
name: Lopez-March, N.
name: Lowdon, P.
name: Lu, H.
name: Lucchesi, D.
name: Luo, H.
name: Luppi, E.
name: Lupton, O.
name: Machefert, F.
name: Machikhiliyan, I. V.
name: Maciuc, F.
name: Maev, O.
name: Malde, S.
name: Manca, G.
name: Mancinelli, G.
name: Manzali, M.
name: Maratas, J.
name: Marconi, U.
name: Benito, C. Marin
name: Marino, P.
name: Märki, R.
name: Marks, J.
name: Martellotti, G.
name: Martens, A.
name: Sánchez, A. Martín
name: Martinelli, M.
name: Santos, D. Martinez
name: Vidal, F. Martinez
name: Tostes, D. Martins
name: Massafferri, A.
name: Matev, R.
name: Mathe, Z.
name: Matteuzzi, C.
name: Mazurov, A.
name: McCann, M.
name: McCarthy, J.
name: McNab, A.
name: McNulty, R.
name: McSkelly, B.
name: Meadows, B.
name: Meier, F.
name: Meissner, M.
name: Merk, M.
name: Milanes, D. A.
name: Minard, M. -N.
name: Rodriguez, J. Molina
name: Monteil, S.
name: Moran, D.
name: Morandin, M.
name: Morawski, P.
name: Mordà, A.
name: Morello, M. J.
name: Mountain, R.
name: Muheim, F.
name: Müller, K.
name: Muresan, R.
name: Muryn, B.
name: Muster, B.
name: Naik, P.
name: Nakada, T.
name: Nandakumar, R.
name: Nasteva, I.
name: Needham, M.
name: Neri, N.
name: Neubert, S.
name: Neufeld, N.
name: Nguyen, A. D.
name: Nguyen, T. D.
name: Nguyen-Mau, C.
name: Nicol, M.
name: Niess, V.
name: Niet, R.
name: Nikitin, N.
name: Nikodem, T.
name: Novoselov, A.
name: Oblakowska-Mucha, A.
name: Obraztsov, V.
name: Oggero, S.
name: Ogilvy, S.
name: Okhrimenko, O.
name: Oldeman, R.
name: Onderwater, G.
name: Orlandea, M.
name: Goicochea, J. M. Otalora
name: Owen, P.
name: Oyanguren, A.
name: Pal, B. K.
name: Palano, A.
name: Palombo, F.
name: Palutan, M.
name: Panman, J.
name: Papanestis, A.
name: Pappagallo, M.
name: Pappalardo, L.
name: Parkes, C.
name: Parkinson, C. J.
name: Passaleva, G.
name: Patel, G. D.
name: Patel, M.
name: Patrignani, C.
name: Pavel-Nicorescu, C.
name: Alvarez, A. Pazos
name: Pearce, A.
name: Pellegrino, A.
name: Altarelli, M. Pepe
name: Perazzini, S.
name: Trigo, E. Perez
name: Perret, P.
name: Perrin-Terrin, M.
name: Pescatore, L.
name: Pesen, E.
name: Pessina, G.
name: Petridis, K.
name: Petrolini, A.
name: Olloqui, E. Picatoste
name: Pietrzyk, B.
name: Pilař, T.
name: Pinci, D.
name: Pistone, A.
name: Playfer, S.
name: Casasus, M. Plo
name: Polci, F.
name: Poluektov, A.
name: Polycarpo, E.
name: Popov, A.
name: Popov, D.
name: Popovici, B.
name: Potterat, C.
name: Powell, A.
name: Prisciandaro, J.
name: Pritchard, A.
name: Prouve, C.
name: Pugatch, V.
name: Navarro, A. Puig
name: Punzi, G.
name: Qian, W.
name: Rachwal, B.
name: Rademacker, J. H.
name: Rakotomiaramanana, B.
name: Rama, M.
name: Rangel, M. S.
name: Raniuk, I.
name: Rauschmayr, N.
name: Raven, G.
name: Reichert, S.
name: Reid, M. M.
name: Reis, A. C. dos
name: Ricciardi, S.
name: Richards, A.
name: Rinnert, K.
name: Molina, V. Rives
name: Romero, D. A. Roa
name: Robbe, P.
name: Roberts, D. A.
name: Rodrigues, A. B.
name: Rodrigues, E.
name: Perez, P. Rodriguez
name: Roiser, S.
name: Romanovsky, V.
name: Vidal, A. Romero
name: Rotondo, M.
name: Rouvinet, J.
name: Ruf, T.
name: Ruffini, F.
name: Ruiz, H.
name: Valls, P. Ruiz
name: Sabatino, G.
name: Silva, J. J. Saborido
name: Sagidova, N.
name: Sail, P.
name: Saitta, B.
name: Guimaraes, V. Salustino
name: Sedes, B. Sanmartin
name: Santacesaria, R.
name: Rios, C. Santamarina
name: Santovetti, E.
name: Sapunov, M.
name: Sarti, A.
name: Satriano, C.
name: Satta, A.
name: Savrie, M.
name: Savrina, D.
name: Schiller, M.
name: Schindler, H.
name: Schlupp, M.
name: Schmelling, M.
name: Schmidt, B.
name: Schneider, O.
name: Schopper, A.
name: Schune, M. -H.
name: Schwemmer, R.
name: Sciascia, B.
name: Sciubba, A.
name: Seco, M.
name: Semennikov, A.
name: Senderowska, K.
name: Sepp, I.
name: Serra, N.
name: Serrano, J.
name: Seyfert, P.
name: Shapkin, M.
name: Shapoval, I.
name: Shcheglov, Y.
name: Shears, T.
name: Shekhtman, L.
name: Shevchenko, O.
name: Shevchenko, V.
name: Shires, A.
name: Coutinho, R. Silva
name: Simi, G.
name: Sirendi, M.
name: Skidmore, N.
name: Skwarnicki, T.
name: Smith, N. A.
name: Smith, E.
name: Smith, E.
name: Smith, J.
name: Smith, M.
name: Snoek, H.
name: Sokoloff, M. D.
name: Soler, F. J. P.
name: Soomro, F.
name: Souza, D.
name: De Paula, B. Souza
name: Spaan, B.
name: Sparkes, A.
name: Spinella, F.
name: Spradlin, P.
name: Stagni, F.
name: Stahl, S.
name: Steinkamp, O.
name: Stevenson, S.
name: Stoica, S.
name: Stone, S.
name: Storaci, B.
name: Stracka, S.
name: Straticiuc, M.
name: Straumann, U.
name: Stroili, R.
name: Subbiah, V. K.
name: Sun, L.
name: Sutcliffe, W.
name: Swientek, S.
name: Syropoulos, V.
name: Szczekowski, M.
name: Szczypka, P.
name: Szilard, D.
name: Szumlak, T.
name: T'Jampens, S.
name: Teklishyn, M.
name: Tellarini, G.
name: Teodorescu, E.
name: Teubert, F.
name: Thomas, C.
name: Thomas, E.
name: van Tilburg, J.
name: Tisserand, V.
name: Tobin, M.
name: Tolk, S.
name: Tomassetti, L.
name: Tonelli, D.
name: Topp-Joergensen, S.
name: Torr, N.
name: Tournefier, E.
name: Tourneur, S.
name: Tran, M. T.
name: Tresch, M.
name: Tsaregorodtsev, A.
name: Tsopelas, P.
name: Tuning, N.
name: Garcia, M. Ubeda
name: Ukleja, A.
name: Ustyuzhanin, A.
name: Uwer, U.
name: Vagnoni, V.
name: Valenti, G.
name: Vallier, A.
name: Gomez, R. Vazquez
name: Regueiro, P. Vazquez
name: Sierra, C. Vázquez
name: Vecchi, S.
name: Velthuis, J. J.
name: Veltri, M.
name: Veneziano, G.
name: Vesterinen, M.
name: Viaud, B.
name: Vieira, D.
name: Vilasis-Cardona, X.
name: Vollhardt, A.
name: Volyanskyy, D.
name: Voong, D.
name: Vorobyev, A.
name: Vorobyev, V.
name: Voß, C.
name: Voss, H.
name: de Vries, J. A.
name: Waldi, R.
name: Wallace, C.
name: Wallace, R.
name: Wandernoth, S.
name: Wang, J.
name: Ward, D. R.
name: Watson, N. K.
name: Webber, A. D.
name: Websdale, D.
name: Whitehead, M.
name: Wicht, J.
name: Wiechczynski, J.
name: Wiedner, D.
name: Wilkinson, G.
name: Williams, M. P.
name: Williams, M.
name: Wilson, F. F.
name: Wimberley, J.
name: Wishahi, J.
name: Wislicki, W.
name: Witek, M.
name: Wormser, G.
name: Wotton, S. A.
name: Wright, S.
name: Wu, S.
name: Wyllie, K.
name: Xie, Y.
name: Xing, Z.
name: Yang, Z.
name: Yuan, X.
name: Yushchenko, O.
name: Zangoli, M.
name: Zavertyaev, M.
name: Zhang, F.
name: Zhang, L.
name: Zhang, W. C.
name: Zhang, Y.
name: Zhelezov, A.
name: Zhokhov, A.
name: Zhong, L.
name: Zvyagin, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The LHCb measurement of the lifetime ratio of the $Λ^0_b$ to the $\overline{B}^0$ meson is updated using data corresponding to an integrated luminosity of 3.0 fb$^{-1}$ collected using 7 and 8 TeV centre-of-mass energy $pp$ collisions at the LHC. The decay modes used are $\overline{B}^0\to J/ψp K^-$ and $\overline{B}^0\to J/ψπ^+ K^-$, where the $π^+K^-$ mass is consistent with that of the $\overline{K}^{*0}(892)$ meson. The lifetime ratio is determined with unprecedented precision to be $0.974\pm0.006\pm0.004$, where the first uncertainty is statistical and the second systematic. This result is in agreement with original theoretical predictions based on the heavy quark expansion. Using the current world average of the $\overline{B}^0$ lifetime, the $Λ^0_b$ lifetime is found to be $1.479 \pm 0.009 \pm 0.010$ ps.
description: 11 pages, 6 figures; version 2 after response to referee, v3 minor corrections