12 research outputs found

    Branching fraction and CP asymmetries of B0→KS0KS0KS0

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    We present measurements of the branching fraction and time-dependent CP-violating asymmetries in B0→K0SK0SK0S decays based on 227×106 Υ(4S)→BB decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We obtain a branching fraction of (6.9+0.9−0.8±0.6)×10−6, and CP asymmetries C=−0.34+0.28−0.25±0.05 and S=−0.71+0.38−0.32±0.04, where the first uncertainties are statistical and the second systematic

    Improved Measurement of the Cabibbo-Kobayashi-Maskawa Angle α Using B0(B¯)→ρ+ρ- Decays

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    We present results from an analysis of B0(B̅ 0)→ρ+ρ- using 232×106 Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We measure the longitudinal polarization fraction fL=0.978±0.014(stat)+0.021/-0.029(syst) and the CP-violating parameters SL=-0.33±0.24(stat)+0.08/-0.14(syst) and CL=-0.03±0.18(stat)±0.09(syst). Using an isospin analysis of B→ρρ decays, we determine the unitarity triangle parameter α. The solution compatible with the standard model is α=(100±13)°

    Improved measurement of the Cabibbo-Kobayashi-Maskawa angle α using B0(B)→p+p- decays

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    We present results from an analysis of B0(B¯¯¯0)→ρ+ρ− using 232×106 Υ(4S)→BB¯¯¯ decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We measure the longitudinal polarization fraction fL=0.978±0.014(stat)+0.021−0.029(syst) and the CP-violating parameters SL=−0.33±0.24(stat)+0.08−0.14(syst) and CL=−0.03±0.18(stat)±0.09(syst). Using an isospin analysis of B→ρρ decays, we determine the unitarity triangle parameter α. The solution compatible with the standard model is α=(100±13)°

    Measurement of D+(s) and D*+(s) production in B meson decays and from continuum e+ e- annihilations at s**(1/2) = 10.6-GeV.

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    none622Bernard Aubert; D. Boutigny; J.M. Gaillard; A. Hicheur; Y. Karyotakis; J.P. Lees; P. Robbe; V. Tisserand; A. Palano; G.P. Chen; J.C. Chen; N.D. Qi; G. Rong; P. Wang; Y.S. Hz; G. Eigen; P.L. Reinertsen; B. Stugu; B. Abbott; G.S. Abrams; A.W. Borgland; A.B. Breon; David Nathan Brown; Janice Button-Shafer; R.N. Cahn; A.R. Clark; M.S. Gill; A.V. Gritsan; Y. Groysman; R.G. Jacobsen; R.W. Kadel; J. Kadyk; L.T. Kerth; S. Kluth; Yu.G. Kolomensky; J.F. Kral; C. LeClerc; M.E. Levi; T. Liu; G. Lynch; A.B. Meyer; M. Momayezi; P.J. Oddone; A. Perazzo; M. Pripstein; N.A. Roe; A. Romosan; M.T. Ronan; V.G. Shelkov; A.V. Telnov; W.A. Wenzel; P.G. Bright-Thomas; T.J. Harrison; C.M. Hawkes; D.J. Knowles; S.W. O'Neale; R.C. Penny; A.T. Watson; N.K Watson; T. Deppermann; K. Goetzen; H. Koch; J. Krug; M. Kunze; B. Lewandowski; K. Peters; H. Schmuecker; M. Steinke; J.C. Andress; N.R. Barlow; W. Bhimji; N. Chevalier; P.J. Clark; W.N. Cottingham; N. De Groot; N. Dyce; B. Foster; J.D. McFall; D. Wallom; F.F. Wilson; K. Abe; C. Hearty; T.S. Mattison; J.A. McKenna; D. Thiessen; S. Jolly; A.K. McKemey; Jane S. Tinslay; V.E. Blinov; A.D. Bukin; D.A. Bukin; A.R. Buzykaev; V.B. Golubev; V.N. Ivanchenko; A.A. Korol; E.A. Kravchenko; A.P. Onuchin; A.A. Salnikov; S.I. Serednyakov; Yu.I. Skovpen; Valery I. Telnov; A.N. Yushkov; D. Best; A.J. Lankford; M. Mandelkern; S. McMahon; D.P. Stoker; A. Ahsan; K. Arisaka; C. Buchanan; S. Chun; J.G. Branson; D.B. MacFarlane; Soeren A. Prell; S. Rahatlou; G. Raven; V. Sharma; C. Campagnari; B. Dahmes; P.A. Hart; N. Kuznetsova; S.L. Levy; O. Long; A. Lu; J.D. Richman; W. Verkerke; Michael S. Witherell; S. Yellin; J. Beringer; D.E. Dorfan; A.M. Eisner; A. Frey; A.A. Grillo; M. Grothe; C.A. Heusch; R.P. Johnson; W. Kroeger; William S. Lockman; T. Pulliam; H. Sadrozinski; T. Schalk; R.E. Schmitz; B.A. Schumm; A. Seiden; M. Turri; W. Walkowiak; D.C. Williams; M.G. Wison; E. Chen; G.P. Dubois-Felsmann; A. Dvoretskii; D.G. Hitlin; S. Metzler; J. Oyang; F.C. Porter; A. Ryd; A. Samuel; M. Weaver; S. Yang; R.Y. Zhu; S. Devmal; T.L. Geld; S. Jayatilleke; G. Mancinelli; B.T. Meadows; M.D. Sokoloff; T. Barillari; P. Bloom; M.O. Dima; S. Fahey; William T. Ford; D.R. Johnson; U. Nauenberg; A. Olivas; H. Park; P. Rankin; J. Roy; S. Sen; James G. Smith; W.C. van Hoek; D.L. Wagner; J. Blouw; John L. Harton; M. Krishnamurthy; A. Soffer; W.H. Toki; R.J. Wilson; J. Zhang; T. Brandt; J. Brose; T. Colberg; G. Dahlinger; M. Dickopp; R.S. Dubitzky; A. Hauke; E. Maly; R. Muller-Pfefferkorn; S. Otto; Klaus R. Schubert; R. Schwierz; B. Spaan; L. Wilden; L. Behr; Denis Bernard; 1; G.R. Bonneaud; F. Brochard; J. Cohen-Tanugi; S. Ferrag; E. Roussot; S. T'Jampens; C. Thiebaux; G. Vasileiadis; M. Verderi; A. Anjomshoaa; R. Bernet; A. Khan; D. Lavin; F. Muheim; S. Playfer; J.E. Swain; M. Falbo; C. Borean; C. Bozzi; S. Dittongo; M. Folegani; L. Piemontese; E. Treadwell; F. Anulli; R. Baldini-Ferroli; A. Calcaterra; R. de Sangro; D. Falciai; G. Finocchiaro; P. Patteri; I.M. Peruzzi; M. Piccolo; Y. Xie; A. Zallo; S. Bagnasco; A. Buzzo; R. Contri; G. Crosetti; P. Fabbricatore; S. Farinon; M. Lo Vetere; M. Macri; M.R. Monge; R. Musenich; M. Pallavicini; R. Parodi; S. Passaggio; F.C. Pastore; C. Patrignani; M.G. Pia; C. Priano; E. Robutti; A. Santroni; M. Morii; R. Bartoldus; T. Dignan; R. Hamilton; U. Mallik; J. Cochran; H.B. Crawley; P.A. Fischer; J. Lamsa; W.T. Meyer; E.I. Rosenberg; M. Benkebil; G. Grosdidier; C. Hast; Andreas Hocker; H.M. Lacker; S. Laplace; V. Lepeltier; A.M. Lutz; S. Plaszczynski; M.H. Schune; S. Trincaz-Duvoid; A. Valassi; G. Wormser; R.M. Bionta; V. Brigljevic; D.J. Lange; M. Mugge; X. Shi; K. van Bibber; T.J. Wenaus; D.M. Wright; C.R. Wuest; M. Carroll; J.R. Fry; E. Gabathuler; R. Gamet; M. George; M. Kay; D.J. Payne; R.J. Sloane; C. Touramanis; M.L. Aspinwall; D.A. Bowerman; Paul D. Dauncey; U. Egede; Ivo M. Gough Eschrich; N.J.W. Gunawardane; J.A. Nash; P. Sanders; D. Smith; D.E. Azzopardi; J.J. Back; P. Dixon; P.F. Harrison; R.J.L. Potter; H.W. Shorthouse; P. Strother; P.B. Vidal; M.I. Williams; G. Cowan; S. George; M.G. Green; A. Kurup; C.E. Marker; P. McGrath; T.R. McMahon; S. Ricciardi; F. Salvatore; I. Scott; G. Vaitsas; David Norvil Brown; C.L. Davis; John Allison; Roger J. Barlow; J.T. Boyd; A.C. Forti; J. Fullwood; F. Jackson; G.D. Lafferty; N. Savvas; E.T. Simopoulos; J.H. Weatherall; A. Farbin; A. Jawahery; V. Lillard; J. Olsen; D.A. Roberts; J.R. Schieck; G. Blaylock; C. Dallapiccola; K.T. Flood; Stanley S. Hertzbach; R. Kofler; T.B. Moore; H. Staengle; Stephane Willocq; B. Brau; R. Cowan; G. Sciolla; F. Taylor; R.K. Yamamoto; M. Milek; P.M. Patel; J. Trischuk; F. Lanni; F. Palombo; J.M. Bauer; M. Booke; L. Cremaldi; V. Eschenburg; R. Kroeger; J. Reidy; D.A. Sanders; D.J. Summers; J.P. Martin; J.Y. Nief; R. Seitz; P. Taras; A. Woch; V. Zacek; H. Nicholson; C.S. Sutton; C. Cartaro; N. Cavallo; G. De Nardo; F. Fabozzi; C. Gatto; L. Lista; P. Paolucci; D. Piccolo; C. Sciacca; J.M. LoSecco; J.R.G. Alsmiller; T.A. Gabriel; T. Handler; J. Brau; R. Frey; M. Iwasaki; N.B. Sinev; David M. Strom; F. Colecchia; F. Dal Corso; A. Dorigo; F. Galeazzi; M. Margoni; G. Michelon; M. Morandin; M. Posocco; M. Rotondo; F. Simonetto; R. Stroili; E. Torassa; C. Voci; Maurice Benayoun; H. Briand; J. Chauveau; P. David; C. de la Vaissiere; L. Del Buono; O. Hamon; F. Le Diberder; P Leruste; J. Lory; L. Roos; J. Stark; S. Versille; P. Manfredi; V. Re; V. Speziali; E.D. Frank; Larry D. Gladney; Q.H. Guo; J.H. Panetta; C. Angelini; G. Batignani; S. Bettarini; M. Bondioli; M. Carpinelli; F. Forti; M.A. Giorgi; A. Lusiani; F. Martinez-Vidal; M. Morganti; N. Neri; E. Paoloni; M. Rama; G. Rizzo; F. Sandrelli; G. Simi; G. Triggiani; J. Walsh; M. Haire; D. Judd; K. Paick; L. Turnbull; D.E. Wagoner; J. Albert; C. Bula; P. Elmer; C. Lu; K.T. McDonald; V. Miftakov; S.F. Schaffner; A.J.S. Smith; A. Tumanov; E.W. Varnes; G. Cavoto; D. del Re; R. Faccini; F. Ferrarotto; F. Ferroni; K. Fratini; E. Lamanna; Emanuele Leonardi; M.A. Mazzoni; Silvio Morganti; G. Piredda; F. Safai Tehrani; M. Serra; C. Voena; S. Christ; R. Waldi; P.F. Jacques; M. Kalelkar; R.J. Plano; T. Adye; B. Franek; N.I. Geddes; G.P. Gopal; S.M. Xella; R. Aleksan; G. De Domenico; S. Emery; A. Gaidot; S.F. Ganzhur; P.F. Giraud; W. Kozanecki; M. Langer; G.W. London; B. Mayer; B. Serfass; G. Vasseur; C. Yeche; M. Zito; N. Copty; M.V. Purohit; H. Singh; F.X. Yumiceva; I. Adam; P.L. Anthony; D. Aston; K. Baird; J.P. Berger; Elliott D. Bloom; A.M. Boyarski; F. Bulos; G. Calderini; R. Claus; M.R. Convery; D.P. Coupal; D.H. Coward; J. Dorfan; M. Doser; W. Dunwoodie; R.C. Field; T. Glanzman; G.L. Godfrey; S.J. Gowdy; P. Grosso; T. Himel; Tetiana Berger-Hryn'ova; M.E. Huffer; Walter R. Innes; C.P. Jessop; M.H. Kelsey; P. Kim; M.L. Kocian; Urs Langenegger; David W.G.S. Leith; S. Luitz; V. Luth; H.L. Lynch; H. Marsiske; S. Menke; R. Messner; K.C. Moffeit; R. Mount; D.R. Muller; C.P. O'Grady; M. Perl; S. Petrak; Helen R. Quinn; B.N. Ratcliff; S.H. Robertson; L.S. Rochester; A. Roodman; T. Schietinger; R.H. Schindler; J. Schwiening; V.V. Serbo; A. Snyder; A. Soha; S.M. Spanier; J. Stelzer; D. Su; M.K. Sullivan; H.A. Tanaka; J. Va'vra; S.R. Wagner; A.J.R. Weinstein; William J. Wisniewski; D.H. Wright; C.C. Young; P.R. Burchat; C.H. Cheng; David P. Kirkby; T.I. Meyer; C. Roat; R. Henderson; W. Bugg; H. Cohn; A.W. Weidemann; J.M. Izen; I. Kitayama; X.C. Lou; m. Turcotte; F. Bianchi; Marcella Bona; B. Di Girolamo; D. Gamba; A. Smol; D. Zanin; L. Bosisio; G. Della Ricca; L. Lanceri; A. Pompili; P. Poropat; M. Prest; E. Vallazza; G. Vuagnin; R.S. Panvini; C. Brown; Asoka S. De Silva; Robert V. Kowalewski; J.M. Roney; H.R. Band; E. Charles; S. Dasu; F. Di Lodovico; A.M. Eichenbaum; H. Hu; J.R. Johnson; R. Liu; J. Nielsen; Y. Pan; R. Prepost; I.J. Scott; J.H. von Wimmersperg-Toeller; S.L. Wu; Z. Yu; H. Zobernig; T.M.B. Kordich; H. NealBernard, Aubert; D., Boutigny; J. 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    Measurement of the CP violating asymmetry amplitude sin 2beta

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    We present results on time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 88 million Y(4S) --> B Bbar decays collected between 1999 and 2002 with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We study events in which one neutral B meson is fully reconstructed in a final state containing a charmonium meson and the other B meson is determined to be either a B0 or B0bar from its decay products. The amplitude of the CP-violating asymmetry, which in the Standard Model is proportional to sin2beta, is derived from the decay-time distributions in such events. We measure sin2beta = 0.741 +/- 0.067 (stat) +/- 0.034 (syst) and |lambda| = 0.948 +/- 0.051 (stat) +/- 0.030 (syst). The magnitude of lambda is consistent with unity, in agreement with the Standard Model expectation of no direct CP violation in these modes.Comment: 7 pages, 2 postscript figures, submitted to PR

    Whole-genome sequencing reveals host factors underlying critical COVID-19

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    Altres ajuts: Department of Health and Social Care (DHSC); Illumina; LifeArc; Medical Research Council (MRC); UKRI; Sepsis Research (the Fiona Elizabeth Agnew Trust); the Intensive Care Society, Wellcome Trust Senior Research Fellowship (223164/Z/21/Z); BBSRC Institute Program Support Grant to the Roslin Institute (BBS/E/D/20002172, BBS/E/D/10002070, BBS/E/D/30002275); UKRI grants (MC_PC_20004, MC_PC_19025, MC_PC_1905, MRNO2995X/1); UK Research and Innovation (MC_PC_20029); the Wellcome PhD training fellowship for clinicians (204979/Z/16/Z); the Edinburgh Clinical Academic Track (ECAT) programme; the National Institute for Health Research, the Wellcome Trust; the MRC; Cancer Research UK; the DHSC; NHS England; the Smilow family; the National Center for Advancing Translational Sciences of the National Institutes of Health (CTSA award number UL1TR001878); the Perelman School of Medicine at the University of Pennsylvania; National Institute on Aging (NIA U01AG009740); the National Institute on Aging (RC2 AG036495, RC4 AG039029); the Common Fund of the Office of the Director of the National Institutes of Health; NCI; NHGRI; NHLBI; NIDA; NIMH; NINDS.Critical COVID-19 is caused by immune-mediated inflammatory lung injury. Host genetic variation influences the development of illness requiring critical care or hospitalization after infection with SARS-CoV-2. The GenOMICC (Genetics of Mortality in Critical Care) study enables the comparison of genomes from individuals who are critically ill with those of population controls to find underlying disease mechanisms. Here we use whole-genome sequencing in 7,491 critically ill individuals compared with 48,400 controls to discover and replicate 23 independent variants that significantly predispose to critical COVID-19. We identify 16 new independent associations, including variants within genes that are involved in interferon signalling (IL10RB and PLSCR1), leucocyte differentiation (BCL11A) and blood-type antigen secretor status (FUT2). Using transcriptome-wide association and colocalization to infer the effect of gene expression on disease severity, we find evidence that implicates multiple genes-including reduced expression of a membrane flippase (ATP11A), and increased expression of a mucin (MUC1)-in critical disease. Mendelian randomization provides evidence in support of causal roles for myeloid cell adhesion molecules (SELE, ICAM5 and CD209) and the coagulation factor F8, all of which are potentially druggable targets. Our results are broadly consistent with a multi-component model of COVID-19 pathophysiology, in which at least two distinct mechanisms can predispose to life-threatening disease: failure to control viral replication; or an enhanced tendency towards pulmonary inflammation and intravascular coagulation. We show that comparison between cases of critical illness and population controls is highly efficient for the detection of therapeutically relevant mechanisms of disease

    Search for strange-pentaquark production in e+e− annihilation at √s=10.58 GeV

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    We search for strange pentaquark states that have been previously reported by other experiments -- the Θ(1540)+, Ξ5(1860)−−, and Ξ5(1860)0 -- in 123 fb−1 of data recorded with the BaBar detector at the PEP-II e+e− storage ring. We find no evidence for these states and set 95% confidence level upper limits on the number of Θ(1540)+ and Ξ5(1860)−− pentaquarks produced per e+e− annihilation event that are about eight and four times lower than the rates measured for ordinary baryons of similar mass
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