M. Calvi

activity

20012026

most citedLHCb Detector Performance

1.1k citations · 2.1k across the 29 of their papers we have counts for

collaborators

30 papers

hep-ex2026

A new AI-based Full Event Interpretation model for flavour physics

Matteo Barbieri, Marta Calvi, Elena Graverini +2

The increasing event complexity and data rates foreseen for future LHC coinditions motivate a transition from selecting proton-proton ( $pp$ ) collision events by reconstructing pred…

hep-ex2017★ 26 cited

Observation of the suppressed decay $Λ_{b}^{0} \to p π^{-} μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +768

The suppressed decay $Λ_{b}^{0} \to p π^{-} μ^{+} μ^{-}$ , excluding the $J / ψ$ and $ψ (2 S) \to μ^{+} μ^{-}$ resonances, is observed for the first time with a significance o…

hep-ex2016★ 5 cited

Search for the $B_{s}^{0} \to η^{'} ϕ$ decay

LHCb collaboration, R. Aaij, B. Adeva +763

A search for the charmless $B_{s}^{0} \to η^{'} ϕ$ decay is performed using $pp$ collision data collected by the LHCb experiment at centre-of-mass energies of $7$ and $8$ TeV,…

hep-ex2016★ 21 cited

Observation of $B_{c}^{+} \to J / ψ D^{()} K^{()}$ decays

LHCb collaboration, R. Aaij, B. Adeva +764

A search for the decays $B_{c}^{+} \to J / ψ D^{(*) 0} K^{+}$ and $B_{c}^{+} \to J / ψ D^{(*) +} K^{* 0}$ is performed with data collected at the LHCb experiment corresponding to an integrated lumino…

hep-ex2016★ 136 cited

Amplitude analysis of $B^{+} \to J / ψ ϕ K^{+}$ decays

LHCb collaboration, R. Aaij, B. Adeva +751

The first full amplitude analysis of $B^{+} \to J / ψ ϕ K^{+}$ with $J / ψ \to μ^{+} μ^{-}$ , $ϕ \to K^{+} K^{-}$ decays is performed with a data sample of 3 fb $^{- 1}$ of $pp$ collision data collected at $…

hep-ex2015★ 71 cited

First measurement of the differential branching fraction and $C P$ asymmetry of the $B^{\pm} \to π^{\pm} μ^{+} μ^{-}$ decay

LHCb collaboration, R. Aaij, B. Adeva +723

The differential branching fraction with respect to the dimuon invariant mass squared, and the $C P$ asymmetry of the $B^{\pm} \to π^{\pm} μ^{+} μ^{-}$ decay are measured for the first time.…

hep-ex2015★ 35 cited

$B$ flavour tagging using charm decays at the LHCb experiment

LHCb collaboration, R. Aaij, B. Adeva +725

An algorithm is described for tagging the flavour content at production of neutral $B$ mesons in the LHCb experiment. The algorithm exploits the correlation of the flavour of a $B$ …

hep-ex2015★ 38 cited

Measurement of indirect $C P$ asymmetries in $D^{0} \to K^{-} K^{+}$ and $D^{0} \to π^{-} π^{+}$ decays using semileptonic $B$ decays

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

Time-dependent $C P$ asymmetries in the decay rates of the singly Cabibbo-suppressed decays $D^{0} \to K^{-} K^{+}$ and $D^{0} \to π^{-} π^{+}$ are measured in $pp$ collision data c…

hep-ex2014★ 1.1k cited

LHCb Detector Performance

LHCb collaboration, R. Aaij, B. Adeva +702

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 bea…

physics.ins-det2014★ 21 cited

Characterization of the Hamamatsu R11265-103-M64 multi-anode photomultiplier tube

L. Cadamuro, M. Calvi, L. Cassina +6

The aim of this paper is to fully characterize the new multi-anode photomultiplier tube R11265-103-M64, produced by Hamamatsu. Its high effective active area (77%), its pixel size,…

hep-ex2014★ 26 cited

Measurement of polarization amplitudes and CP asymmetries in $B^{0} \to ϕ K^{*} (892)^{0}$

LHCb collaboration, R. Aaij, A. Abba +692

An angular analysis of the decay $B^{0} \to ϕ K^{*} (892)^{0}$ is reported based on a $pp$ collision data sample, corresponding to an integrated luminosity of 1.0 fb $^{- 1}$ , collected at a…

hep-ex2014★ 53 cited

Angular analysis of charged and neutral $B \to K μ^{+} μ^{-}$ decays

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

The angular distributions of the rare decays $B^{+} \to K^{+} μ^{+} μ^{-}$ and $B^{0} \to K_{S}^{0} μ^{+} μ^{-}$ are studied with data corresponding to 3fb $^{- 1}$ of integrate…

hep-ex2013

Search for the decay D0 to π+ π- μ+ μ-

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

A search for the D0 to π+ π- μ+ μ- decay, where the muon pair does not originate from a resonance, is performed using proton-proton collision data corresponding to an integrated lu…

hep-ex2013★ 18 cited

First evidence for the two-body charmless baryonic decay $B^{0} \to p p ˉ$

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

The results of a search for the rare two-body charmless baryonic decays $B^{0} \to p p ˉ$ and $B_{s}^{0} \to p p ˉ$ are reported. The analysis uses a data sample, corresponding t…

nucl-ex2013★ 73 cited

Study of $J / ψ$ production and cold nuclear matter effects in $p$ Pb collisions at $s_{N N} = 5 TeV$

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

The production of $J / ψ$ mesons with rapidity $1.5 < y < 4.0$ or $- 5.0 < y < - 2.5$ and transverse momentum $p_{T} < 14 GeV / c$ is studied with the LHCb detector in proton-lead…

hep-ex2013★ 24 cited

Study of $B_{(s)}^{0} \to K_{S}^{0} h^{+} h^{' -}$ decays with first observation of $B_{s}^{0} \to K_{S}^{0} K^{\pm} π^{\mp}$ and $B_{s}^{0} \to K_{S}^{0} π^{+} π^{-}$

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

A search for charmless three-body decays of $B^{0}$ and $B_{s}^{0}$ mesons with a $K_{S}^{0}$ meson in the final state is performed using the $pp$ collision data, corresponding to an…

hep-ex2013★ 81 cited

First observation of the decay $B_{c}^{+} \to J / ψ K^{+}$

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

The decay $B_{c}^{+} \to J / ψ K^{+}$ is observed for the first time using a data sample, corresponding to an integrated luminosity of 1.0 $f b^{- 1}$ , collected by the LHCb experiment in…

hep-ex2013★ 81 cited

Measurements of the Lambda_b0 -> J/psi Lambda decay amplitudes and the Lambda_b0 polarisation in pp collisions at sqrt(s) = 7 TeV

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

An angular analysis of Lambda_b0 -> J/psi Lambda decays is performed using a data sample corresponding to 1.0 fb^{-1} collected in pp collisions at sqrt(s) = 7 TeV with the LHCb de…

hep-ex2012★ 17 cited

First evidence for the annihilation decay mode $B^{+} \to D_{s}^{+} ϕ$

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

Evidence for the hadronic annihilation decay mode $B^{+} \to D_{s}^{+} ϕ$ is found with greater than $3 σ$ significance. The branching fraction and \CP asymmetry are measured to be \ma…

hep-ex2012★ 25 cited

Measurements of the branching fractions of the decays $B_{s}^{0} \to D_{s}^{\mp} K^{\pm}$ and $B_{s}^{0} \to D_{s}^{-} π^{+}$

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 $γ$ through the study of time-dependent $\ensuremath…

hep-ex2012★ 47 cited

Measurement of the B+- production cross-section in pp collisions at sqrt(s)=7 TeV

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

The production of B+- mesons in proton-proton collisions at sqrt(s)=7 TeV is studied using 35 pb-1 of data collected by the LHCb detector. The B+- mesons are reconstructed exclusiv…

hep-ex2012★ 8 cited

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-ex2011★ 53 cited

Measurement of charged particle multiplicities in $pp$ collisions at $s = 7$ TeV in the forward region

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

The charged particle production in proton-proton collisions is studied with the LHCb detector at a centre-of-mass energy of $s = 7$ TeV in different intervals of pseudorapid…

hep-ex2004★ 50 cited

Search for single top production via FCNC at LEP at sqrt(s) = 189-208 GeV

The DELPHI Collaboration, J. Abdallah

A search for single top production (e+e- -> t cbar) via Flavour Changing Neutral Currents (FCNC) was performed using the data taken by the DELPHI detector at LEP2. The data analyse…

A new AI-based Full Event Interpretation model for flavour physics

Observation of the suppressed decay Λb0​→pπ−μ+μ−

Search for the Bs0​→η′ϕ decay

Observation of Bc+​→J/ψD(∗)K(∗) decays

Amplitude analysis of B+→J/ψϕK+ decays

First measurement of the differential branching fraction and CP asymmetry of the B±→π±μ+μ− decay

B flavour tagging using charm decays at the LHCb experiment

Measurement of indirect CP asymmetries in D0→K−K+ and D0→π−π+ decays using semileptonic B decays