Browsing MIT Open Access Articles by Author "Aaij, R."

Allen: A High-Level Trigger on GPUs for LHCb

Aaij, R.; Albrecht, J.; Belous, M.; Billoir, P.; Boettcher, T.; e.a. (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

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; e.a. (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

Aaij, R.; Abellán Beteta, C.; Adeva, B.; Adinolfi, M.; Aidala, C. A; e.a. (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+ → ψ(2S)K+π+π− decays

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; e.a. (Springer Berlin Heidelberg, 2025-01-08)

he first full amplitude analysis of B+ → ψ(2S)K+π+π− decays is performed using proton-proton collision data corresponding to an integrated luminosity of 9 fb−1 recorded with the LHCb detector. The rich K+π+π− spectrum is ...

Amplitude analysis of B[superscript +] →J/ψϕK[superscript +] decays

Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; e.a. (American Physical Society, 2017-01)

Amplitude analysis of B[superscript 0] → [bar over D][superscript 0]K[superscript +]π[superscript -] decays

Aaij, R.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; e.a. (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

Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; e.a. (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

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; e.a. (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

Aaij, R.; Abellán Beteta, C.; Adeva, B.; Adinolfi, M.; Aidala, C. A; e.a. (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

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; e.a. (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 +]

Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; e.a. (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

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; e.a. (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

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; e.a. (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 ...

Analysis of Λ b 0 → pK−μ+μ− decays

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; e.a. (Springer Berlin Heidelberg, 2024-12-19)

The differential branching fraction and angular coefficients of Λ b 0 → pK−μ+μ− decays are measured in bins of the dimuon mass squared and dihadron mass. The analysis is performed using a data set corresponding to 9 fb−1 ...

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

Aaij, R.; Abellán Beteta, C.; Ackernley, T.; Adeva, B.; Adinolfi, M.; e.a. (Springer Berlin Heidelberg, 2021-06-29)

Abstract The first full angular analysis of the B ...

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