S. Ramirez

collaborators

6 papers

hep-ex2026

Observation of the decay $I ¨ _{c 1} (3872) \to J / I ¨ I^¼^{+} I^¼^{-}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1184

The first observation of the $I ¨ _{c 1} (3872) \to J / I ¨ I^¼^{+} I^¼^{-}$ decay is reported using proton-proton collision data recorded with the LHCb detector corr…

hep-ex2026

First observation of $C P$ violation and measurement of polarization in $B^{+} \to I ¨ (770)^{0} K^{*} (892)^{+}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1183

An amplitude analysis of the $B^{+} \to (I ¨ ^{+} I ¨ ^{-}) (K_{S}^{0} I ¨ ^{+})$ decay is performed in the mass regions $0.30 < m_{I ¨ ^{+} I ¨ ^{-}} < 1.10 GeV / c^{2}$ and $0.75 < m_{K^0_{\mat…

hep-ex2026

Measurement of CP asymmetries in $B^{0} \to D_{s}^{-} D^{+}$ and $B_{s}^{0} \to D_{s}^{+} D^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1190

Measurements of the combined CP asymmetries in $B^{0} \to D_{s}^{-} D^{+}$ and $B_{s}^{0} \to D_{s}^{+} D^{-}$ decays are ma…

hep-ex2026

A method for luminosity determination based on real-time hit reconstruction with the LHCb silicon pixel detector

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1177

The data acquisition system of the upgraded LHCb experiment includes the fast reconstruction of all hits in the vertex locator (VELO) pixel detector at the beam-crossing rate of 40…

hep-ex2026

Search for $I ¨ ^{-} \to I^¼^{-} I^¼^{+} I^¼^{-}$ decays at the LHCb experiment with Run 2 data

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1188

A search for the lepton-flavour-violating decay $I ¨ ^{-} \to I^¼^{-} I^¼^{+} I^¼^{-}$ is carried out using data collected by the LHCb experiment between 2016 and 2018 in proton-proton collisions…

hep-ex2026

Machine learning techniques for jet reconstruction at LHCb and application to the search for $H \to b b ˉ$ and $H \to c c ˉ$ in $s = 13$ TeV $pp$ collisions

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1210

Two machine learning techniques for jet measurements at the LHCb experiment are presented: a regression-based method for jet-energy calibration and a deep neural network algorithm…

Observation of the decay I¨c1​(3872)→J/I¨I^¼+I^¼−

First observation of CP violation and measurement of polarization in B+→I¨(770)0K∗(892)+ decays

Measurement of CP asymmetries in B0→Ds−​D+ and Bs0​→Ds+​D− decays

A method for luminosity determination based on real-time hit reconstruction with the LHCb silicon pixel detector

Search for I¨−→I^¼−I^¼+I^¼− decays at the LHCb experiment with Run 2 data

Machine learning techniques for jet reconstruction at LHCb and application to the search for H→bbˉ and H→ccˉ in s​=13 TeV pp collisions

Observation of the decay $I ¨ _{c 1} (3872) \to J / I ¨ I^¼^{+} I^¼^{-}$

First observation of $C P$ violation and measurement of polarization in $B^{+} \to I ¨ (770)^{0} K^{*} (892)^{+}$ decays

Measurement of CP asymmetries in $B^{0} \to D_{s}^{-} D^{+}$ and $B_{s}^{0} \to D_{s}^{+} D^{-}$ decays

Search for $I ¨ ^{-} \to I^¼^{-} I^¼^{+} I^¼^{-}$ decays at the LHCb experiment with Run 2 data

Machine learning techniques for jet reconstruction at LHCb and application to the search for $H \to b b ˉ$ and $H \to c c ˉ$ in $s = 13$ TeV $pp$ collisions