papers

Publications (257)

hep-ex2014

First observation of a baryonic decay

LHCb collaboration, R. Aaij, B. Adeva +699

A baryonic decay of the meson, , is observed for the first time, with a significance of standard deviations, in collision data co…

hep-ex2014

First measurement of the charge asymmetry in beauty-quark pair production at a hadron collider

R. Aaij, B. Adeva, M. Adinolfi +700

The difference in the angular distributions between beauty quarks and antiquarks, referred to as the charge asymmetry, is measured for the first time in pair production…

hep-ex2014

Measurement of the CP-violating phase in decays and limits on penguin effects

LHCb collaboration, R. Aaij, B. Adeva +697

Time-dependent CP violation is measured in the channel for each resonant final state using data collected with an integrated luminosity of…

hep-ex2014

Measurement of CP asymmetry in decays

LHCb collaboration, R. Aaij, B. Adeva +698

We report on measurements of the time-dependent CP violating observables in decays using a dataset corresponding to 1.0 fb of pp collisi…

hep-ex2012

First observation of the decays B0bar -->D+ K- pi+ pi- and B- --> D0 K- pi+ pi-

LHCb Collaboration, R. Aaij, C. Abellan Beteta +586

First observations of the Cabibbo suppressed decays B0bar -->D+ K- pi+ pi- and B- --> D0 K- pi+ pi- are reported using 35 pb^{-1} of data collected with the LHCb detector. Their br…

hep-ex2012

First observation of the decay $B^0_s \rightarrow K^{*0} \bar{K]^{*0}$

LHCb Collaboration, R. Aaij, C. Abellan Beteta +584

The first observation of the decay $\kstarkstar$ is reported using 35\invpb of data collected by LHCb in proton-proton collisions at a centre-of-mass energy of 7 TeV. A total of $4…

hep-ex2012

Measurement of the Ds+ - Ds- production asymmetry in 7 TeV pp collisions

LHCb collaboration, R. Aaij, C. Abellan Beteta +605

Heavy quark production in 7 TeV centre-of-mass energy pp collisions at the LHC is not necessarily flavour symmetric. The production asymmetry, A_P, between Ds+ and Ds- mesons is st…

hep-ex2015

Angular analysis of the decay in the low- region

LHCb collaboration, R. Aaij, B. Adeva +703

An angular analysis of the decay is performed using a data sample, corresponding to an integrated luminosity of 3.0 ${\mbox{fb}^{-1}}$, collected b…

hep-ex2014

Evidence for the decay

LHCb collaboration, R. Aaij, B. Adeva +686

Evidence is presented for the decay using proton-proton collision data, corresponding to an integrated luminosity of 3fb, collected with the…

hep-ex2013

Production of J/psi and Upsilon mesons in pp collisions at sqrt(s) = 8 TeV

LHCb collaboration, R. Aaij, C. Abellan Beteta +631

The production of J/psi and Upsilon mesons in pp collisions at sqrt(s) = 8 TeV is studied with the LHCb detector. The J/psi and Upsilon mesons are reconstructed in the mu+mu- decay…

hep-ex2015

Measurement of violation in decays

LHCb collaboration, R. Aaij, B. Adeva +704

Measurements are presented of the violation observables and in the decays of and mesons to the final state. The data sample corres…

hep-ex2014

Measurement of the B0bar-B0 and Bsbar-Bs production asymmetries in pp collisions at sqrt(s)=7 TeV

LHCb collaboration, R. Aaij, B. Adeva +700

The B0bar-B0 and Bsbar-Bs production asymmetries, AP(B0) and AP(Bs), are measured by means of a time-dependent analysis of B0 -> J/ψK*0, B0 -> D- pi+ and Bs -> Ds- pi+ decays, usi…

hep-ex2013

First observation of the decay and studies of excited mesons

LHCb collaboration, R. Aaij, C. Abellan Beteta +621

Properties of the orbitally excited (L=1) states are studied using 1.0 fb of pp collisions at TeV collected with the LHCb detector. The first observation…

hep-ex2012

Observation of excited Lambda_b0 baryons

LHCb collaboration, R. Aaij, C. Abellan Beteta +615

Using pp collision data corresponding to 1.0 fb-1 integrated luminosity collected by the LHCb detector, two narrow states are observed in the Lambda_b0pi+pi- spectrum with masses 5…

hep-ex2015

Study of the rare and decays into the final state

LHCb collaboration, R. Aaij, B. Adeva +699

A search for the rare decays and is performed in a data set corresponding to an integrated luminosity of 3.0 fb colle…

hep-ex2013

Measurement of the branching fraction and search for decays at the LHCb experiment

LHCb collaboration, R. Aaij, B. Adeva +650

A search for the rare decays and is performed at the LHCb experiment. The data analysed correspond to an integrated luminosity of 1 fb

hep-ex2012

First evidence for the decay Bs -> mu+ mu-

LHCb collaboration, R. Aaij, C. Abellan Beteta +617

A search for the rare decays Bs->mu+mu- and B0->mu+mu- is performed using data collected in 2011 and 2012 with the LHCb experiment at the Large Hadron Collider. The data samples co…

hep-ex2014

Search for Majorana neutrinos in decays

LHCb collaboration, R. Aaij, B. Adeva +674

A search for heavy Majorana neutrinos produced in the decay mode is performed using 3 fb of integrated luminosity collected with the LHCb detector in…

hep-ex2012

First observation of the decay Bc+ to J/psi pi+pi-pi+

LHCb collaboration, R. Aaij, C. Abellan Beteta +592

The decay Bc+ --> J/psi pi+pi-pi+ is observed for the first time, using 0.8 fb-1 of pp collisions at sqrt{s}=7 TeV collected by the LHCb experiment. The ratio of branching fraction…

hep-ex2012

Measurements of the branching fractions of the decays and

The LHCb collaboration, R. Aaij, C. Abellan Beteta +592

The decay mode $\B^{0}_{s} \to D^{\mp}_{s} K^{\pm} $ allows for one of the theoretically cleanest measurements of the CKM angle through the study of time-dependent $\ensuremat…

hep-ex2012

Observation of X(3872) production in pp collisions at sqrt(s)= 7 TeV

LHCb Collaboration, R. Aaij, C. Abellan Beteta +585

Using 34.7 pb-1 of data collected with the LHCb detector, the inclusive production of the X(3872) meson in pp collisions at sqrt(s) = 7 TeV is observed for the first time. Candidat…

hep-ex2015

Measurement of indirect asymmetries in and decays using semileptonic decays

LHCb collaboration, R. Aaij, B. Adeva +707

Time-dependent asymmetries in the decay rates of the singly Cabibbo-suppressed decays and are measured in collision data…

hep-ex2012

Measurement of the isospin asymmetry in decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +615

The isospin asymmetries of decays and the partial branching fractions of and are measured as a function of th…

hep-ex2013

Observation of a resonance in decays at low recoil

LHCb collaboration, R. Aaij, B. Adeva +657

A broad peaking structure is observed in the dimuon spectrum of decays in the kinematic region where the kaon has a low recoil against the dimuon system. The…

hep-ex2013

Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV

LHCb collaboration, R. Aaij, C. Abellan Beteta +625

A measurement of the cross-section for pp->Z->e+e- is presented using data at sqrt{s}=7TeV corresponding to an integrated luminosity of 0.94 fb^{-1}. The process is measured within…

hep-ex2013

Study of B0 -> D*- pi+ pi- pi+ and B0 -> D*- K+ pi- pi+ decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +619

Using proton-proton collision data collected by the LHCb experiment at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 1.0 fb^{-1}, the ratio of branching fractions o…

hep-ex2013

Measurement of the and effective lifetimes

LHCb collaboration, R. Aaij, B. Adeva +672

The first measurement of the effective lifetime of the meson in the decay is reported using a proton-proton collision dataset, correspondi…

hep-ex2013

Search for the decay Bs -> D*-+ π+-

LHCb collaboration, R. Aaij, C. Abellan Beteta +619

A search for the decay Bs -> D*-+ π+- is presented using a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions collected by LHCb. This decay is expe…

hep-ex2015

Measurement of the exclusive production cross-section in collisions at 7 TeV and 8 TeV

LHCb collaboration, R. Aaij, B. Adeva +705

A study is presented of central exclusive production of states, where the resonances decay to the final state, using collision data recorded by th…

hep-ex2014

Measurements of production and mass with the decay

LHCb collaboration, R. Aaij, C. Abellan Beteta +617

Measurements of production and mass are performed with the decay mode using 0.37 fb of data collected in collisions at TeV by…

hep-ex2015

Study of boson production in association with beauty and charm

LHCb collaboration, R. Aaij, B. Adeva +722

The associated production of a boson with a jet originating from either a light parton or heavy-flavor quark is studied in the forward region using proton-proton collisions. Th…

hep-ex2014

First observations of the rare decays and

LHCb collaboration, R. Aaij, B. Adeva +697

First observations of the rare decays and are presented using data corresponding to an integrated luminosity of…

hep-ex2014

Measurement of resonant and components in decays

LHCb collaboration, R. Aaij, B. Adeva +680

The resonant structure of the decay is studied using data corresponding to 3 fb of integrated luminosity from collisions by the LHC a…

hep-ex2015

Measurement of the production cross-section in proton-proton collisions via the decay

LHCb collaboration, R. Aaij, C. Abellán Beteta +705

The production of the state in proton-proton collisions is probed via its decay to the final state with the LHCb detector, in the rapidity range $2.0 < y <…

hep-ex2014

Observation of the decay

LHCb collaboration, R. Aaij, B. Adeva +696

Decays of the form () are searched for in proton-proton collision data corresponding…

hep-ex2015

Quantum numbers of the state and orbital angular momentum in its decay

LHCb collaboration, R. Aaij, C. Abellan Beteta +619

Angular correlations in decays, with , and , are used to measure orbital angular momentum contribution…

hep-ex2015

Search for the decay

LHCb collaboration, R. Aaij, B. Adeva +705

A search for decays is performed using of collision data recorded by the LHCb experiment during 2011 and 2012. Th…

hep-ex2013

Search for the lepton-flavour violating decays and

LHCb collaboration, R. Aaij, B. Adeva +650

A search for the lepton-flavour violating decays and is performed with a data sample, corresponding to an integrated luminos…

hep-ex2013

Differential branching fraction and angular analysis of the decay

LHCb collaboration, R. Aaij, C. Abellan Beteta +631

The angular distribution and differential branching fraction of the decay are studied using a data sample, collected by the LHCb experiment in

hep-ex2015

First observation and measurement of the branching fraction for the decay

LHCb Collaboration, R. Aaij, B. Adeva +697

The first observation of the decay is reported using 3.0 of proton-proton collision data collected by the LHCb experiment. The

hep-ex2013

Measurement of J/psi production in pp collisions at sqrt(s)=2.76 TeV

LHCb collaboration, R. Aaij, C. Abellan Beteta +624

The production of J/psi mesons is studied with the LHCb detector using data from pp collisions at sqrt(s)=2.76 TeV corresponding to an integrated luminosity of 71 nb^-1. The differ…

hep-ex2012

Observation of pair production in pp collisions at

LHCb Collaboration, R. Aaij, B. Adeva +567

The production of pairs in proton-proton collisions at a centre-of-mass energy of 7 TeV has been observed using an integrated luminosity of collected with the…

hep-ex2014

Measurement of the CP-violating phase in decays

LHCb collaboration, R. Aaij, B. Adeva +697

The mixing-induced CP-violating phase in and decays is measured using the final state in data, taken from 3\,fb of integra…

hep-ex2013

Search for CP violation in D+ -> phi pi+ and Ds+ -> Ks pi+ decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +619

A search for CP violation in D+ -> phi pi+ decays is performed using data collected in 2011 by the LHCb experiment corresponding to an integrated luminosity of 1.0 fb^{-1} at a cen…

hep-ex2014

Test of lepton universality using decays

LHCb collaboration, R. Aaij, B. Adeva +697

A measurement of the ratio of the branching fractions of the and decays is presented using proton-proton col…

hep-ex2013

First evidence for the annihilation decay mode

LHCb collaboration, R. Aaij, C. Abellan Beteta +617

Evidence for the hadronic annihilation decay mode is found with greater than significance. The branching fraction and \CP asymmetry are measured to be \…

hep-ex2013

Measurement of polarization in collisions at TeV

LHCb collaboration, R. Aaij, C. Abellan Beteta +627

An angular analysis of the decay is performed to measure the polarization of prompt mesons produced in collisions at $\sqrt{s}=7\; \math…

hep-ex2012

Evidence for CP violation in time-integrated D0 -> h-h+ decay rates

LHCb Collaboration, R. Aaij, C. Abellan Beteta +586

A search for time-integrated CP violation in D0 -> h-h+ (h=K, pi) decays is presented using 0.62 fb^-1 of data collected by LHCb in 2011. The flavor of the charm meson is determine…

hep-ex2014

Updated measurements of exclusive and production cross-sections in collisions at TeV

LHCb collaboration, R. Aaij, B. Adeva +670

The differential cross-section as a function of rapidity has been measured for the exclusive production of and mesons in proton-proton collisions at Te…

hep-ex2013

Search for the rare decay

LHCb collaboration, R. Aaij, C. Abellan Beteta +634

A search for the rare decay is performed using a data sample, corresponding to an integrated luminosity of 0.9 fb, of collisions collected at a centr…

hep-ex2014

Precision measurement of the ratio of the to lifetimes

LHCb collaboration, R. Aaij, B. Adeva +680

The LHCb measurement of the lifetime ratio of the to the meson is updated using data corresponding to an integrated luminosity of 3.0 fb collected…

hep-ex2014

A study of CP violation in and decays with final states

LHCb collaboration, R. Aaij, B. Adeva +682

A first study of CP violation in the decay modes and , where labels a or mes…

hep-ex2012

Observation of Bs -> J/ψf'2(1525) in J/ψK+K- final states

LHCb Collaboration, R. Aaij, C. Abellan Beteta +583

The decay Bs -> J/ψK+ K- is investigated using 0.16/fb of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/ψϕ channel is well known, final states…

hep-ex2012

Measurement of the effective lifetime

LHCb collaboration, R. Aaij, C. Abellan Beteta +616

A precise determination of the effective lifetime can be used to constrain contributions from physics beyond the Standard Model in the meson sys…

hep-ex2015

Observation of the decay

LHCb collaboration, R. Aaij, B. Adeva +703

The first observation of the decay is reported. The study is based on a sample of proton-proton collisions corresponding to of integrated lum…

hep-ex2013

First evidence for the two-body charmless baryonic decay

LHCb collaboration, R. Aaij, B. Adeva +657

The results of a search for the rare two-body charmless baryonic decays and are reported. The analysis uses a data sample, corresponding t…

hep-ex2011

Measurement of mixing and CP violation parameters in two-body charm decays

LHCb Collaboration, R. Aaij, C. Abellan Beteta +585

A study of mixing and indirect CP violation in D0 mesons through the determination of the parameters y_CP and A_Γ is presented. The parameter y_CP is the deviation from unity of t…

hep-ex2013

Measurement of CP violation and the B_s^0 meson decay width difference with B_s^0\to J/ψK^+ K^- and B_s^0\to J/ψπ^+π^- decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +620

The time-dependent CP asymmetry in B_s^0\to J/ψK^+K^- decays is measured using collision data at \sqrt{s}=7TeV, corresponding to an integrated luminosity of 1.0fb^-1, collect…

hep-ex2016

First observation of the decay

LHCb collaboration, R. Aaij, B. Adeva +713

A search for decays is performed using collision data, corresponding to an integrated luminosity of , collected…

hep-ex2013

Measurement of the differential branching fraction of the decay

LHCb collaboration, R. Aaij, B. Adeva +650

The differential branching fraction of the decay is measured as a function of the square of the dimuon invariant mass, . A yield of $Λ…

hep-ex2014

Observation of and evidence for decays

LHCb collaboration, R. Aaij, B. Adeva +700

Measurements of the branching fractions of and decays are performed using a data sample corresponding to

hep-ex2012

Differential branching fraction and angular analysis of the decay

LHCb collaboration, R. Aaij, C. Abellan Beteta +617

The angular distribution and differential branching fraction of the decay are studied with a dataset corresponding to

hep-ex2014

Measurement of the inelastic cross-section at a centre-of-mass energy of TeV

LHCb collaboration, R. Aaij, B. Adeva +699

The cross-section for inelastic proton-proton collisions, with at least one prompt long-lived charged particle of transverse momentum GeV/ in the pseudorapidity…

hep-ex2014

Measurement of the mass and of the relative rate of and production

LHCb collaboration, R. Aaij, B. Adeva +696

The production of mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of and TeV an…

hep-ex2012

Absolute luminosity measurements with the LHCb detector at the LHC

The LHCb Collaboration, R. Aaij, B. Adeva +571

Absolute luminosity measurements are of general interest for colliding-beam experiments at storage rings. These measurements are necessary to determine the absolute cross-sections…

hep-ex2013

First observation of the decay

LHCb collaboration, R. Aaij, C. Abellan Beteta +632

The decay is observed for the first time using a data sample, corresponding to an integrated luminosity of 1.0 , collected by the LHCb experiment in…

hep-ex2015

Measurement of the forward boson production cross-section in collisions at = 7 TeV

LHCb collaboration, R. Aaij, B. Adeva +705

A measurement of the production cross-section for bosons that decay to muons is presented. The data were recorded by the LHCb detector during collisions at a centre-of-mas…

hep-ex2013

Measurement of the -- oscillation frequency with the decays and

LHCb collaboration, R. Aaij, C. Abellan Beteta +621

The -- oscillation frequency is measured by the LHCb experiment using a dataset corresponding to an integrated luminosity of fb of proton-proto…

hep-ex2014

Precision measurement of violation in decays

R. Aaij, B. Adeva, M. Adinolfi +696

The time-dependent asymmetry in decays is measured using collision data, corresponding to an integrated luminosity of fb, collected wit…

hep-ex2015

Search for long-lived particles decaying to jet pairs

LHCb collaboration, R. Aaij, B. Adeva +699

A search is presented for long-lived particles with a mass between 25 and 50 GeV and a lifetime between 1 and 200 ps in a sample of proton-proton collisions at a centre-of-ma…

hep-ex2014

Measurement of D0-D0bar mixing parameters and search for CP violation using D0->K+pi- decays

LHCb collaboration, R. Aaij, B. Adeva +657

Measurements of charm mixing parameters from the decay-time-dependent ratio of D0->K+pi- to D0->K-pi+ rates and the charge-conjugate ratio are reported. The analysis uses data, cor…

hep-ex2013

First measurement of time-dependent CP violation in Bs -> K+K- decays

LHCb collaboration, R. Aaij, B. Adeva +657

Direct and mixing-induced CP-violating asymmetries in Bs -> K+K- decays are measured for the first time using a data sample of pp collisions, corresponding to an integrated luminos…

hep-ex2013

Observation of the decay

LHCb collaboration, R. Aaij, B. Adeva +656

The decay is observed for the first time, using proton-proton collisions collected with the LHCb detector corresponding to an integrated luminosit…

hep-ex2012

Measurement of the branching fraction

LHCb collaboration, R. Aaij, C. Abellan Beteta +594

The branching fraction is measured in a data sample corresponding to 0.41 of integrated luminosity collected with the LHCb detector at the LHC. This c…

hep-ex2014

Study of beauty hadron decays into pairs of charm hadrons

LHCb collaboration, R. Aaij, A. Abba +694

First observations of the decays are reported using data corresponding to an integrated luminosity of collected at 7 and 8 TeV cent…

hep-ex2013

Search for rare decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +620

\noindent A search for the decays and is performed using data, corresponding to an integrated luminos…

hep-ex2013

Measurement of the fraction of \Y1S originating from \chib1P decays in collisions at $\sqrt{s} = 7\tev$

LHCb collaboration, R. Aaij, C. Abellan Beteta +616

The production of \chib1P mesons in collisions at a centre-of-mass energy of $7\tev$ is studied using $32\invpb$ of data collected with the \lhcb detector. The $\chib1P$ meson…

hep-ex2012

Measurement of the CP-violating phase phi_s in the decay Bs->J/psi phi

LHCb Collaboration, R. Aaij, C. Abellan Beteta +585

We present a measurement of the time-dependent CP-violating asymmetry in B_s -> J/psi phi decays, using data collected with the LHCb detector at the LHC. The decay time distributio…

hep-ex2013

Differential branching fraction and angular analysis of the decay

LHCb collaboration, R. Aaij, C. Abellan Beteta +636

The determination of the differential branching fraction and the first angular analysis of the decay are presented using data, corresponding to an integrat…

hep-ex2012

Search for the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-

LHCb Collaboration, R. Aaij, C. Abellan Beteta +590

A search for the decays Bs -> mu+ mu- and B0 -> mu+ mu- is performed with 0.37 fb^-1 of pp collisions at sqrt{s} = 7 TeV collected by the LHCb experiment in 2011. The upper limits…

hep-ex2013

Measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +620

A measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays is presented, based on 1.0fb-1 of pp collision data recorded by the LHCb experiment during 2011. The measurement is pe…

hep-ex2014

Measurement of violation and constraints on the CKM angle in with decays

LHCb collaboration, R. Aaij, B. Adeva +695

A model-dependent amplitude analysis of with decays is performed using proton-proton collision data, corresponding t…

hep-ex2013

First observation of the decay

LHCb Collaboration, R. Aaij, C. Abellan Beteta +621

A discovery of the rare decay is presented. This decay is observed for the first time, with 5.2 significance. The observation is made…

hep-ex2015

Amplitude analysis of decays

LHCb collaboration, R. Aaij, B. Adeva +716

The Dalitz plot distribution of decays is studied using a data sample corresponding to of collision data recorded by the…

hep-ex2014

Angular analysis of charged and neutral decays

LHCb collaboration, R. Aaij, B. Adeva +691

The angular distributions of the rare decays and are studied with data corresponding to 3fb of integ…

hep-ex2013

Measurement of CP violation in the phase space of and decays

LHCb collaboration, R. Aaij, B. Adeva +656

The charmless decays and are reconstructed in a data set, corresponding to an integrated luminos…

hep-ex2013

Analysis of the resonant components in B0->J/ψpi+pi-

LHCb collaboration, R. Aaij, C. Abellan Beteta +620

Interpretation of CP violation measurements using charmonium decays, in both the B0 and Bs systems, can be subject to changes due to "penguin" type diagrams. These effects can be i…

hep-ex2014

Precision measurement of the mass and lifetime of the baryon

LHCb collaboration, R. Aaij, B. Adeva +701

Using a proton-proton collision data sample corresponding to an integrated luminosity of 3 fb collected by LHCb at center-of-mass energies of 7 and 8 TeV, about 3800 $Ξ_b^0…

hep-ex2014

Precision luminosity measurements at LHCb

LHCb collaboration, R. Aaij, B. Adeva +701

Measuring cross-sections at the LHC requires the luminosity to be determined accurately at each centre-of-mass energy . In this paper results are reported from the lumino…

hep-ex2013

Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb

LHCb collaboration, R. Aaij, C. Abellan Beteta +630

Searches for the lepton flavour violating decay and the lepton flavour and baryon number violating decays and $τ^-…

hep-ex2012

Measurement of the Bs effective lifetime in the J/psi f0(980) final state

LHCb Collaboration, R. Aaij, C. Abellan Beteta +618

The effective lifetime of the Bs meson in the decay mode Bs->J/ψf0(980) is measured using 1.0/fb of data collected in pp collisions at sqrt(s) = 7 TeV with the LHCb detector. The…

hep-ex2012

Measurements of the branching fractions and CP asymmetries of B+ to J/psi pi+ and B+ to psi(2S) pi+ decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +589

A study of B+ to J/psi pi+ and B+ to psi(2S) pi+ decays is performed with data corresponding to 0.37 fb-1 of proton-proton collisions at sqrt(s)=7 TeV. Their branching fractions ar…

hep-ex2012

Opposite-side flavour tagging of B mesons at the LHCb experiment

LHCb Collaboration, R. Aaij, C. Abellan Beteta +594

The calibration and performance of the opposite-side flavour tagging algorithms used for the measurements of time-dependent asymmetries at the LHCb experiment are described. The al…

hep-ex2013

Measurement of CP violation in the phase space of and decays

LHCb collaboration, R. Aaij, B. Adeva +647

The charmless decays and are reconstructed using data, corresponding to an integrated luminosity of 1.0 fb, collected…

hep-ex2013

Study of meson decays to , and final states in pp collision

LHCb collaboration, R. Aaij, B. Adeva +648

A study of , and final states is performed using pp collision data, corresponding to an integrated luminosity of 1.0 , collected at a cent…

hep-ex2014

Study of mixing from measurement of ~decay rates

LHCb collaboration, R. Aaij, B. Adeva +701

A study of ~and meson decays into ~and final states is performed using a data set of proton-proton collisions at centre-of-mass energies of 7…

hep-ex2014

Observation of photon polarization in the transition

LHCb collaboration, R. Aaij, B. Adeva +680

This Letter presents a study of the flavor-changing neutral current radiative decays performed using data collected in proton-proton collisi…

hep-ex2012

Determination of the sign of the decay width difference in the B_s system

LHCb Collaboration, R. Aaij, C. Abellan Beteta +594

The interference between the K+K- S-wave and P-wave amplitudes in B_s -> J/psi K+K- decays with the K+K- pairs in the region around the phi(1020) resonance is used to determine the…

hep-ex2013

Measurement of prompt hadron production ratios in collisions at 0.9 and 7 TeV

LHCb collaboration, R. Aaij, C. Abellan Beteta +619

The charged-particle production ratios , , , , and are measured…

hep-ex2013

Branching fraction and CP asymmetry of the decays and

LHCb collaboration, R. Aaij, B. Adeva +655

An analysis of and decays is performed with the LHCb experiment. The collision data…