Browsing La Salle by Author "Vilasís Cardona, Xavier"
Now showing items 61-80 of 320
-
First Observation of Top Quark Production in the Forward Region
Badalov, Alexey; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review Letters, 2015, Vol. 115, No. 11 (Setembre), 2015-09-08)Top quark production in the forward region in proton-proton collisions is observed for the first time. The W+b final state with W→μν is reconstructed using muons with a transverse momentum, pT, larger ... -
First observation of ¯¯¯B0→J/ψK+K− and search for ¯¯¯B0→J/ψϕ decays
Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review D, 2013, Vol. 88 , No.7 (Octubre), 2013-10-14)The first observation of the ¯¯¯B0→J/ψK+K− decay is presented with a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions at a center-of-mass energy of 7 TeV collected ... -
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ −
Badalov, Alexey; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Journal of High Energy Physics, 2014, Vol. 2014, No.10 (Octubre), 2014-10-09)First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK +μ+μ− are presented using data corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment at ... -
Forward production of Υ mesons in pp collisions at s√=7 and 8 TeV
Badalov, Alexey; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Journal of High Energy Physics, 2015, Vol. 2015, No.11 (Novembre), 2015-11-16)The production of Υ mesons in pp collisions at s√=7 and 8 TeV is studied with the LHCb detector using data samples corresponding to an integrated luminosity of 1 fb−1 and 2 fb−1 respectively. The ... -
Framework TDR for the LHCb Upgrade: Technical Design Report
Abellan Beteta, Carlos; Calvo Gómez, Míriam; Domingo Bonal, Francesc; Roselló Canal, Mar; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2012-03-25)This document is a Framework Technical Design Report for the upgrade of the LHCb experiment. It adds to the information in the Letter of Intent, in particular concerning the foreseen schedule, cost and ... -
Identification of beauty and charm quark jets at LHCb
Badalov, Alexey; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Journal of Instrumentation, 2015, Vol. 10, 2015-06)Identification of jets originating from beauty and charm quarks is important for measuring Standard Model processes and for searching for new physics. The performance of algorithms developed to select ... -
Implications of LHCb measurements and future prospects
Abellan Beteta, Carlos; Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (The European Physical Journal C, 2013, Vol. 73, no. 4 (Abril), 2013-04-26)During 2011 the LHCb experiment at CERN collected 1.0 fb−1 of s√=7~TeV pp collisions. Due to the large heavy quark production cross-sections, these data provide unprecedented samples of heavy flavoured ... -
Integrated test environment for a part of the LHCb calorimeter
Abellan Beteta, Carlos; Roselló Canal, Mar; Gaspar de Valenzuela, Álvaro; Riera Baburés, Jordi; Gascón, D.; Picatoste, E.; Comerma, A.; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Proceedings of the Topical Workshop on Electronics for Particle Physics, 2009-09)An integrated test environment for the data acquisition electronics of the Scintillator Pad Detector (SPD) from the calorimeter of the LHCb experiment is presented. It allows to test ... -
Isospin Amplitudes in Λ0b→J/ψΛ(Σ0) and Ξ0b→J/ψΞ0(Λ) Decays
Camboni, Alessandro; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review Letters, 2020, Vol.124, 111802, 2020-02)Ratios of isospin amplitudes in hadron decays are a useful probe of the interplay between weak and strong interactions and allow searches for physics beyond the standard model. We present the first ... -
LHCb Calorimeters: Technical Design Report
Roselló Canal, Mar; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2000-09-07) -
LHCb computing: Technical Design Report
Ballabriga Suñé, Rafel; Luengo Álvarez, Sonia; Roselló Canal, Mar; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2005-06-20) -
LHCb detector performance
Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (International Journal of Modern Physics A, 2015, Vol. 30, No. 7, 2015-03)The LHCb detector is a forward spectrometer at the Large Hadron Collider (LHC) at CERN. The experiment is designed for precision measurements of CP violation and rare decays of beauty and charm hadrons. ... -
LHCb inner tracker: Technical Design Report
Ballabriga Suñé, Rafel; Luengo Álvarez, Sonia; Roselló Canal, Mar; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2002-11-08)The LHCb experiment [1] is designed to exploit the large bb production cross section at the LHC in order to perform a wide range of precision studies of CP violating phenomena. The copious production ... -
LHCb Muon System: Technical Design Report
Ballabriga Suñé, Rafel; Luengo Álvarez, Sonia; Roselló Canal, Mar; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2001-05-28) -
LHCb online system, data acquisition and experiment control: Technical Design Report
Ballabriga Suñé, Rafel; Luengo Álvarez, Sonia; Roselló Canal, Mar; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2001-12-19) -
LHCb outer tracker: Technical Design Report
Ballabriga Suñé, Rafel; Luengo Álvarez, Sonia; Roselló Canal, Mar; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2001-09-14) -
LHCb PID Upgrade Technical Design Report
Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2018-11-25)The LHCb upgrade will take place in the second long shutdown of the LHC, currently scheduled to begin in 2018. The upgrade will enable the experiment to run at luminosities of 2 x10*33cm -2s-1 and will ... -
LHCb reoptimized detector design and performance: Technical Design Report
Ballabriga Suñé, Rafel; Luengo Álvarez, Sonia; Roselló Canal, Mar; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2003-09-09)The LHCb experiment has been conceived to study CP violation and other rare phenomena in B meson decays with very high precision. This should provide a profound understanding of quark flavour physics ... -
LHCb RICH: Technical Design Report
Roselló Canal, Mar; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2000-09-06)This Technical Design Report is dedicated to Tom Ypsilantis. Tom conceived the Ring Imaging Cherenkov detectors for particle identification in LHCb and he made an inestimable contribution to the LHCb ... -
LHCb Trigger and Online Upgrade Technical Design Report
Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (2014-03-21)The LHCb experiment will be upgraded between 2018 and 2019 in order to reach unprecedented precision on the main observable of the b and c-quark sectors. This Technical Design Report addresses the ...