Browsing MIT Open Access Articles by Author "Aaij, R."
Now showing items 1-20 of 299
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Allen: A High-Level Trigger on GPUs for LHCb
(Springer International Publishing, 2020-04-30)Abstract We describe a fully GPU-based implementation of the first level trigger for the upgrade of the LHCb detector, due to start data taking in 2021. We demonstrate that our implementation, named Allen, can process the ... -
Amplitude analysis and branching fraction measurement of 𝐵+→𝐷∗−𝐷+𝑠𝜋+ decays
(Springer Berlin Heidelberg, 2024-08-21)The decays of the B+ meson to the final state 𝐷∗−𝐷+𝑠𝜋+ are studied in proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated ... -
Amplitude analysis of B s 0 → K S 0 K±π∓ decays
(Springer Berlin Heidelberg, 2019-06-21)Abstract The first untagged decay-time-integrated amplitude analysis of B s 0 → K S ... -
Amplitude analysis of B[superscript +] →J/ψϕK[superscript +] decays
(American Physical Society, 2017-01) -
Amplitude analysis of B[superscript 0] → [bar over D][superscript 0]K[superscript +]π[superscript -] decays
(American Physical Society, 2015-07)The Dalitz plot distribution of B[superscript 0] → [bar over D][superscript 0]K[superscript +]π[superscript -] decays is studied using a data sample corresponding to 3.0 fb[superscript -1] of pp collision data recorded ... -
Amplitude analysis of B[superscript −]→D[superscript +]π[superscript −]π[superscript −] decays
(American Physical Society, 2016-10)The Dalitz plot analysis technique is used to study the resonant substructures of B[superscript -]→D[superscript +]π[superscript -]π[superscript -] decays in a data sample corresponding to 3.0 fb[superscript -1] of pp ... -
Amplitude analysis of the D s + $$ {D}_s^{+} $$ → π−π+π+ decay
(Springer Berlin Heidelberg, 2023-07-26)Abstract A Dalitz plot analysis of the D s ... -
Amplitude analysis of the Bs0→K∗0K¯∗0$$ {B}_{(s)}^0\to {K}^{\ast 0}{\overline{K}}^{\ast 0} $$ decays and measurement of the branching fraction of the B0→K∗0K¯∗0$$ {B}^0\to {K}^{\ast 0}{\overline{K}}^{\ast 0} $$ decay
(Springer Berlin Heidelberg, 2019-07-05)Abstract The B0→K∗0K¯∗0$$ {B}^0\to {K}^{\ast 0}{\overline{K}}^{\ast 0} $$ and Bs0→K∗0K¯∗0$$ {B}_s^0\to {K}^{\ast 0}{\overline{K}}^{\ast 0} $$ decays are studied using proton-proton collision data corresponding to an ... -
Amplitude analysis of the D+ → π−π+π+ decay and measurement of the π−π+ S-wave amplitude
(Springer Berlin Heidelberg, 2023-06-09)Abstract An amplitude analysis of the D+ → π−π+π+ decay is performed with a sample corresponding to 1.5 fb−1 of integrated luminosity of pp collisions at a centre-of-mass energy ... -
Amplitude Analysis of the Decay [¯ over B][superscript 0] → K[subscript S][superscript 0]π[superscript +]π[superscript −] and First Observation of the C P Asymmetry in [¯ over B][superscript 0] → K[supercript *] ( 892 )[superscript −] π[superscript +]
(American Physical Society, 2018-06)The time-integrated untagged Dalitz plot of the three-body hadronic charmless decay [¯ over B][superscript 0]→K[subscript S][superscript 0]π[superscript +]π[superscript -] is studied using a pp collision data sample recorded ... -
Amplitude analysis of the radiative decay B0s → K+K−γ
(Springer Berlin Heidelberg, 2024-08-13)A search for radiative decay of 𝐵0𝑠 mesons to orbitally excited K+K− states is performed using proton proton collisions recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The dikaon ... -
Amplitude analysis of the Λ 0 b → pK−γ decay
(Springer Science and Business Media LLC, 2024-06-18)The resonant structure of the radiative decay Λ0𝑏→𝑝𝐾−𝛾 in the region of proton-kaon invariant-mass up to 2.5 GeV/c2 is studied using proton-proton collision data recorded at centre-of-mass energies of 7, 8, and 13 TeV ... -
Angular analysis of B 0 → D ∗ − D s ∗ + $$ {B}^0\to {D}^{\ast -}{D}_s^{\ast +} $$ with D s ∗ + → D s + γ $$ {D}_s^{\ast +}\to {D}_s^{+}\gamma $$ decays
(Springer Berlin Heidelberg, 2021-06-29)Abstract The first full angular analysis of the B ... -
Angular analysis of the rare decay B0s → ϕμ+μ−
(Springer Berlin Heidelberg, 2021-11-08)Abstract An angular analysis of the rare decay B ... -
Angular moments of the decay Λ[subscript b][superscript 0] → Λμ[superscript +]μ[superscript −] at low hadronic recoil
(Springer Berlin Heidelberg, 2018-09)An analysis of the angular distribution of the decay Λ[subscript b][superscript 0] → Λμ[superscript +]μ[superscript −] is presented, using data collected with the LHCb detector between 2011 and 2016 and corresponding to ... -
Associated production of prompt J/ψ and Υ mesons in pp collisions at s $$ \sqrt{s} $$ = 13 TeV
(Springer Berlin Heidelberg, 2023-08-17)Abstract The associated production of prompt J/ψ and Υ mesons in pp collisions at a centre-of-mass energy of ... -
Central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at √s = 13 TeV
(Springer Berlin Heidelberg, 2018-10)Measurements are reported of the central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at a centre-of-mass energy of 13 TeV. Backgrounds are significantly reduced compared to previous measurements made at ... -
Charmonium production in pNe collisions at $$\sqrt{s_{\scriptscriptstyle \text {NN}}} =68.5$$ s NN = 68.5 GeV
(Springer Berlin Heidelberg, 2023-07-17)Abstract The measurement of charmonium states produced in proton-neon ( $$p\text {Ne}$$ ... -
A Comparison of CPU and GPU Implementations for the LHCb Experiment Run 3 Trigger
(Springer International Publishing, 2021-12-22)Abstract The Large Hadron Collider beauty (LHCb) experiment at CERN is undergoing an upgrade in preparation for the Run 3 data collection period at the Large Hadron Collider (LHC). As part of this upgrade, ... -
Comprehensive analysis of local and nonlocal amplitudes in the B0 → K*0μ+μ− decay
(Springer Berlin Heidelberg, 2024-09-05)A comprehensive study of the local and nonlocal amplitudes contributing to the decay B0 → K*0(→ K+π−)μ+μ− is performed by analysing the phase-space distribution of the decay products. The analysis is based on pp collision ...
