M. Rama

activity

20032023

most citedSearch for lepton-universality violation in

B^{+} \to K^{+} ℓ^{+} ℓ^{-}

decays

402 citations · 2.1k across the 24 of their papers we have counts for

collaborators

24 papers

hep-ex2023

Search for $D^{*} (2007)^{0} \to μ^{+} μ^{-}$ in $B^{-} \to π^{-} μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1047

The very rare $D^{*} (2007)^{0} \to μ^{+} μ^{-}$ decay is searched for by analysing $B^{-} \to π^{-} μ^{+} μ^{-}$ decays. The analysis uses a sample of beauty mesons produced in proton-proton collisions…

hep-ex2021★ 6 cited

Identification of charm jets at LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

The identification of charm jets is achieved at LHCb for data collected in 2015-2018 using a method based on the properties of displaced vertices reconstructed and matched with jet…

hep-ex2021★ 44 cited

Observation of excited $Ω_{c}^{0}$ baryons in $Ω_{b}^{-} \to Ξ_{c}^{+} K^{-} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +959

The first observation of the $Ω_{b}^{-} \to Ξ_{c}^{+} K^{-} π^{-}$ decay is reported using $pp$ collision data at centre-of-mass energies of 7, 8 and 13\, $TeV$ collected by the LHCb e…

hep-ex2020★ 4 cited

Observation of the $B_{s}^{0} \to D^{*\pm} D^{\mp}$ decay

LHCb collaboration, R. Aaij, C. Abellán Beteta +963

A search for the $B_{s}^{0} \to D^{*\pm} D^{\mp}$ decay is performed using proton-proton collision data at centre-of-mass energies of $7$ , $8$ and $13 TeV$ collected by…

hep-ex2020★ 224 cited

Amplitude analysis of the $B^{+} \to D^{+} D^{-} K^{+}$ decay

LHCb collaboration, R. Aaij, C. Abellán Beteta +963

Results are reported from an amplitude analysis of the $B^{+} \to D^{+} D^{-} K^{+}$ decay. The analysis is carried out using LHCb proton-proton collision data taken at $s = 7, 8,$ and $1…

hep-ex2019★ 68 cited

Observation of several sources of $C P$ violation in $B^{+} \to π^{+} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +868

Observations are reported of different sources of $C P$ violation from an amplitude analysis of $B^{+} \to π^{+} π^{+} π^{-}$ decays, based on a data sample corresponding to an integrated l…

hep-ex2019★ 402 cited

Search for lepton-universality violation in $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ decays

LHCb Collaboration, R. Aaij, C. Abellán Beteta +846

A measurement of the ratio of branching fractions of the decays $B^{+} \to K^{+} μ^{+} μ^{-}$ and $B^{+} \to K^{+} e^{+} e^{-}$ is presented. The proton-proton collision data used correspond to an integ…

hep-ex2019★ 297 cited

Observation of $C P$ violation in charm decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +848

A search for charge-parity ( $C P$ ) violation in $D^{0} \to K^{-} K^{+}$ and $D^{0} \to π^{-} π^{+}$ decays is reported, using $pp$ collision data corresponding to an integrated luminosity of…

hep-ex2015★ 117 cited

Search for the $Λ_{b} \to Λ η^{'}$ and $Λ_{b} \to Λ η$ decays with the LHCb detector

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

A search is performed for the as yet unobserved baryonic $Λ_{b} \to Λ η^{'}$ and $Λ_{b} \to Λ η$ decays with 3 $f b^{- 1}$ of proton-proton collision data recorded by the…

hep-ex2015★ 178 cited

Determination of the quark coupling strength $∣ V_{u b} ∣$ using baryonic decays

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

In the Standard Model of particle physics, the strength of the couplings of the $b$ quark to the $u$ and $c$ quarks, $∣ V_{u b} ∣$ and $∣ V_{c b} ∣$ , are governed by the coupling of the…

hep-ex2014★ 19 cited

Measurement of the $B_{s}^{0}$ meson lifetime in $D_{s}^{+} π^{-}$ decays

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

We present a measurement of the ratio of the Bs meson lifetime, in the flavor-specific decay to $D_{s}^{+} π^{-}$ , to that of the B0 meson. The pp collision data used correspond to an int…

hep-ex2012★ 238 cited

Precise Measurement of the e+ e- --> pi+ pi- (gamma) Cross Section with the Initial-State Radiation Method at BABAR

J. P. Lees et al.

A precise measurement of the cross section of the process $e^{+} e^{-} \to π^{+} π^{-} (γ)$ from threshold to an energy of 3GeV is obtained with the initial-state radiation (ISR) method using 2…

hep-ex2009★ 332 cited

Measurement of the gamma gamma* --> pi0 transition form factor

The BABAR Collaboration, B. Aubert

We study the reaction e+e- --> e+e-pi0 and measure the gamma gamma* --> pi0 transition form factor in the momentum transfer range from 4 to 40 GeV^2. The analysis is based on 442 f…

hep-ex2007

Measurement of Decay Amplitudes of B -->(c cbar) Kstar with an Angular Analysis, for (c cbar)=J/psi, psi(2S) and chi_c1

The BABAR Collaboration, B. Aubert

We perform the first three-dimensional measurement of the amplitudes of $B \to ψ (2 S) K^{*}$ and $B \to χ_{c 1} K^{*}$ decays and update our previous measurement for $B \to J / ψ K^{*}$ . We use…

hep-ex2006

Observation of B --> eta' K* and Evidence for B --> eta' rho+

The BABAR Collaboration, B. Aubert

We present an observation of $B \to η^{'} K^{*}$ . The data sample corresponds to 232 million $B B ˉ$ pairs collected with the BABAR detector at the PEP-II asymmetric-energy $B$ F…

hep-ex2005

A study of e+e- -> p anti-p using initial state radiation with BABAR

The BABAR Collaboration, B. Aubert

The e+e- -> p anti-p cross section is determined over a range of p anti-p masses, from threshold to 4.5 GeV/c^2, by studying the e+e- -> p anti-p gamma process. The data set corres…

hep-ex2005★ 9 cited

Measurement of the Branching Ratios Gamma(D_s+ -> D_s+ pi0)/Gamma(D_s+ -> D_s+ gamma) and Gamma(D0+ -> D0 pi0)/Gamma(D0* -> D0 gamma)

The BABAR Collaboration, B. Aubert

Data samples corresponding to the isospin-violating decay $D_{s}^{*+} \to D_{s}^{+} π^{0}$ and the decays $D_{s}^{*+} \to D_{s}^{+} γ$ , $D^{* 0} \to D^{0} π^{0}$ and $D^{* 0} \to D^{0} γ$ are reconstructed usi…

hep-ex2005★ 6 cited

Measurement of branching fractions and mass spectra of B -> K pi pi gamma

B. Aubert, BABAR Collaboration

We present a measurement of the partial branching fractions and mass spectra of the exclusive radiative penguin processes B -> K pi pi gamma in the range m_Kpipi < 1.8 GeV/c^2. We…

hep-ex2005★ 36 cited

Search for Lepton-Flavor and Lepton-Number Violation in the Decay tau->lhh

BaBar Collaboration, B. Aubert

A search for lepton-flavor and lepton-number violation in the decay of the tau lepton into one charged lepton and two charged hadrons is performed using 221.4 $fb^{- 1}$ of…

hep-ex2005

Measurement of Time-Dependent CP Asymmetries in B0 -> D(*)D Decays

The BABAR Collaboration, B. Aubert

We present a first measurement of CP asymmetries in neutral B decays to D+D-, and updated CP asymmetry measurements in decays to D*+D- and D*-D+. We use fully-reconstructed decays…

hep-ex2005★ 8 cited

Search for the Rare Decays B+ --> D(*)+K0s

B. Aubert, BABAR Collaboration

We report on the search for the rare decays $B^{+} \to D^{(*) +} K_{s}^{0}$ in approximately 226 million $Y (4S) \to b B ˉ$ decays collected with the BaBar detector at the PEP-II a…

hep-ex2005★ 46 cited

Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B to eta' K Decays

the BaBar Collaboration, B. Aubert

We present measurements of the B -> eta' K branching fractions;for B+ -> eta' K+ we measure also the time-integrated charge asymmetry Ach, and for B0 -> eta' K0S the time dependent…

hep-ex2004★ 6 cited

Measurement of Branching Fraction and Dalitz Distribution for B0->D(*)+/- K0 pi-/+ Decays

B. Aubert, BABAR Collaboration

We present measurements of the branching fractions for the three-body decays B0 -> D(*)-/+ K0 pi^+/- $an d t h e i r r eso nan t s u bm o d es$ B0 -> D(*)-/+ K*+/- using a sample of approximate…

hep-ex2003★ 27 cited

Measurement of the Branching Fractions for the Exclusive Decays of B^0 and B^+ to Dbar^()D^()K

The BaBar collaboration, B. Aubert

We report the observation of 823+/-57 B^0 and 970+/-65 B^+ decays to doubly charmed final states Dbar^(*)D^(*)K, where Dbar^(*) and D^(*) are fully reconstructed and K is either a…

Search for D∗(2007)0→μ+μ− in B−→π−μ+μ− decays

Identification of charm jets at LHCb

Observation of excited Ωc0​ baryons in Ωb−​→Ξc+​K−π− decays

Observation of the Bs0​→D∗±D∓ decay

Amplitude analysis of the B+→D+D−K+ decay

Observation of several sources of CP violation in B+→π+π+π− decays

Search for lepton-universality violation in B+→K+ℓ+ℓ− decays

Observation of CP violation in charm decays

Search for the Λb​→Λη′ and Λb​→Λη decays with the LHCb detector

Determination of the quark coupling strength ∣Vub​∣ using baryonic decays

Measurement of the Bs0​ meson lifetime in Ds+​π− decays

Precise Measurement of the e+ e- --> pi+ pi- (gamma) Cross Section with the Initial-State Radiation Method at BABAR

Measurement of the gamma gamma* --> pi0 transition form factor

Measurement of Decay Amplitudes of B -->(c cbar) Kstar with an Angular Analysis, for (c cbar)=J/psi, psi(2S) and chi_c1

Observation of B --> eta' K* and Evidence for B --> eta' rho+

A study of e+e- -> p anti-p using initial state radiation with BABAR

Measurement of the Branching Ratios Gamma(D_s*+ -> D_s+ pi0)/Gamma(D_s*+ -> D_s+ gamma) and Gamma(D0+ -> D0 pi0)/Gamma(D0* -> D0 gamma)

Measurement of branching fractions and mass spectra of B -> K pi pi gamma

Search for Lepton-Flavor and Lepton-Number Violation in the Decay tau->lhh

Measurement of Time-Dependent CP Asymmetries in B0 -> D(*)D Decays

Search for the Rare Decays B+ --> D(*)+K0s

Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B to eta' K Decays

Measurement of Branching Fraction and Dalitz Distribution for B0->D(*)+/- K0 pi-/+ Decays

Measurement of the Branching Fractions for the Exclusive Decays of B^0 and B^+ to Dbar^(*)D^(*)K

Search for $D^{*} (2007)^{0} \to μ^{+} μ^{-}$ in $B^{-} \to π^{-} μ^{+} μ^{-}$ decays

Observation of excited $Ω_{c}^{0}$ baryons in $Ω_{b}^{-} \to Ξ_{c}^{+} K^{-} π^{-}$ decays

Observation of the $B_{s}^{0} \to D^{*\pm} D^{\mp}$ decay

Amplitude analysis of the $B^{+} \to D^{+} D^{-} K^{+}$ decay

Observation of several sources of $C P$ violation in $B^{+} \to π^{+} π^{+} π^{-}$ decays

Search for lepton-universality violation in $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ decays

Observation of $C P$ violation in charm decays

Search for the $Λ_{b} \to Λ η^{'}$ and $Λ_{b} \to Λ η$ decays with the LHCb detector

Determination of the quark coupling strength $∣ V_{u b} ∣$ using baryonic decays

Measurement of the $B_{s}^{0}$ meson lifetime in $D_{s}^{+} π^{-}$ decays

Measurement of the Branching Ratios Gamma(D_s+ -> D_s+ pi0)/Gamma(D_s+ -> D_s+ gamma) and Gamma(D0+ -> D0 pi0)/Gamma(D0* -> D0 gamma)

Measurement of the Branching Fractions for the Exclusive Decays of B^0 and B^+ to Dbar^()D^()K