Publications
810 results found
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, First Measurement of the Z -> mu(+) mu(-) Angular Coefficients in the Forward Region of pp Collisions at root s=13 TeV, PHYSICAL REVIEW LETTERS, Vol: 129, ISSN: 0031-9007
Aaij R, Abdelmotteleb ASW, Abellán Beteta C, et al., 2022, First Measurement of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>Z</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>μ</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>μ</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> Angular Coefficients in the Forward Region of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mi>p</mml:mi></mml:math> Collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:mi>s</mml:mi></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>13</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:mrow></mml:math>, Physical Review Letters, Vol: 129, ISSN: 0031-9007
Calabrese R, Fiorini M, Luppi E, et al., 2022, Performance of the LHCb RICH detectors during LHC Run 2, JOURNAL OF INSTRUMENTATION, Vol: 17, ISSN: 1748-0221
Aaij R, Beteta CA, Ackernley T, et al., 2022, Study of coherent J/psi production in lead-lead collisions at root S-NN=5 TeV, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 2
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Constraints on the CKM angle gamma from B-+/- -> Dh(+/-) decays using D -> h(+/-)h '(-/+)pi(0) final states, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Precision measurement of forward Z boson production in proton-proton collisions at root s=13 TeV, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 1
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Observation of an exotic narrow doubly charmed tetraquark, NATURE PHYSICS, Vol: 18, Pages: 751-+, ISSN: 1745-2473
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- Citations: 25
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Study of the doubly charmed tetraquark T-cc(+), NATURE COMMUNICATIONS, Vol: 13
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- Citations: 33
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Angular Analysis of D0 -> x plus x-mu plus mu- and D0 -> K plus K-mu plus mu- Decays and Search for CP Violation, PHYSICAL REVIEW LETTERS, Vol: 128, ISSN: 0031-9007
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- Citations: 1
Ahdida C, Akmete A, Albanese R, et al., 2022, The SHiP experiment at the proposed CERN SPS Beam Dump Facility, EUROPEAN PHYSICAL JOURNAL C, Vol: 82, ISSN: 1434-6044
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- Citations: 5
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Measurement of the charm mixing parameter y(CP)-y(CP)(K pi) using two-body D-0 meson decays, PHYSICAL REVIEW D, Vol: 105, ISSN: 2470-0010
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Observation of the Decay Λ_{b}^{0}→Λ_{c}^{+}τ^{-}ν[over ¯]_{τ}., Phys Rev Lett, Vol: 128
The first observation of the semileptonic b-baryon decay Λ_{b}^{0}→Λ_{c}^{+}τ^{-}ν[over ¯]_{τ}, with a significance of 6.1σ, is reported using a data sample corresponding to 3 fb^{-1} of integrated luminosity, collected by the LHCb experiment at center-of-mass energies of 7 and 8 TeV at the LHC. The τ^{-} lepton is reconstructed in the hadronic decay to three charged pions. The ratio K=B(Λ_{b}^{0}→Λ_{c}^{+}τ^{-}ν[over ¯]_{τ})/B(Λ_{b}^{0}→Λ_{c}^{+}π^{-}π^{+}π^{-}) is measured to be 2.46±0.27±0.40, where the first uncertainty is statistical and the second systematic. The branching fraction B(Λ_{b}^{0}→Λ_{c}^{+}τ^{-}ν[over ¯]_{τ})=(1.50±0.16±0.25±0.23)% is obtained, where the third uncertainty is from the external branching fraction of the normalization channel Λ_{b}^{0}→Λ_{c}^{+}π^{-}π^{+}π^{-}. The ratio of semileptonic branching fractions R(Λ_{c}^{+})≡B(Λ_{b}^{0}→Λ_{c}^{+}τ^{-}ν[over ¯]_{τ})/B(Λ_{b}^{0}→Λ_{c}^{+}μ^{-}ν[over ¯]_{μ}) is derived to be 0.242±0.026±0.040±0.059, where the external branching fraction uncertainty from the channel Λ_{b}^{0}→Λ_{c}^{+}μ^{-}ν[over ¯]_{μ} contributes to the last term. This result is in agreement with the standard model prediction.
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Observation of the Decay Lambda(0)(b) -> Lambda(+)(c) tau(-)(nu)over-bar(tau), PHYSICAL REVIEW LETTERS, Vol: 128, ISSN: 0031-9007
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- Citations: 3
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Tests of Lepton Universality Using B-0 -> K(S)(0)l(+) l(-) and B+ -> K*(+)l(+)l(-) Decays, PHYSICAL REVIEW LETTERS, Vol: 128, ISSN: 0031-9007
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- Citations: 15
Aaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2022, Search for the decay B-0 -> phi mu(+) mu(-), JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
Aaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2022, Observation of the doubly charmed baryon decay Xi(++)(cc) -> Xi(c)'(+)pi(+), JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 3
Aaij R, Ackernley T, Adeva B, et al., 2022, Centrality determination in heavy-ion collisions with the LHCb detector, JOURNAL OF INSTRUMENTATION, Vol: 17, ISSN: 1748-0221
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Search for massive long-lived particles decaying semileptonically at root s=13 TeV, EUROPEAN PHYSICAL JOURNAL C, Vol: 82, ISSN: 1434-6044
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Observation of Two New Excited ?(0)(b) States Decaying to ?K-0(b) -?(+), PHYSICAL REVIEW LETTERS, Vol: 128, ISSN: 0031-9007
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- Citations: 3
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Observation of the B-0 -> (D)over-bar*K-0(+) pi(-) and B-s(0) -> (D)over-bar*K-0(-)pi(+) decays, PHYSICAL REVIEW D, Vol: 105, ISSN: 2470-0010
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Study of charmonium and charmonium-like contributions in B+ -> J/psi eta K+ decays, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 1
Aaij R, Beteta CA, Ackernley T, et al., 2022, Measurement of the Nuclear Modification Factor and Prompt Charged Particle Production in p-Pb and pp Collisions at root s(NN )=5 TeV, PHYSICAL REVIEW LETTERS, Vol: 128, ISSN: 0031-9007
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- Citations: 2
Aaij R, Abdelmotteleb ASW, Abellán Beteta C, et al., 2022, Observation of the B0 → D ¯ ∗0K+π- and Bs0 → D ¯ ∗0K-π+ decays, Physical Review D, Vol: 105, ISSN: 2470-0010
The first observations of B0→D¯∗(2007)0K+π- and Bs0→D¯∗(2007)0K-π+ decays are presented, and their branching fractions relative to that of the B0→D¯∗(2007)0π+π- decay are reported. These modes can potentially be used to investigate the spectroscopy of charm and charm-strange resonances and to determine the angle γ of the Cabibbo-Kobayashi-Maskawa unitarity triangle. It is also important to understand them as a source of potential background in determinations of γ from B+→DK+ and B0→DK+π- decays. The analysis is based on a sample corresponding to an integrated luminosity of 5.4 fb-1 of proton-proton collision data at 13 TeV center-of-mass energy recorded with the LHCb detector. The D¯∗(2007)0 mesons are fully reconstructed in the D¯0π0 and D¯0γ channels with the D¯0→K+π- decay. A novel weighting method is used to subtract background while simultaneously applying an event-by-event efficiency correction to account for resonant structures in the decays.
Aaij R, Abdelmotteleb ASW, Abellán Beteta C, et al., 2022, Measurement of the photon polarization in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>b</mml:mi><mml:mn>0</mml:mn></mml:msubsup><mml:mo stretchy="false">→</mml:mo><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>γ</mml:mi></mml:math> decays, Physical Review D, Vol: 105, ISSN: 2470-0010
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Measurement of the photon polarization in Lambda(0)(b) -> Lambda gamma decays, PHYSICAL REVIEW D, Vol: 105, ISSN: 2470-0010
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- Citations: 2
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Observation of Lambda(0)(b) -> D(+)p pi(-)pi(-) and Lambda(0)(b) -> D-*+p pi(-)pi(-) decays, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Searches for rare B-s(0) and B-0 decays into four muons, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 1
Aaij R, Abdelmotteleb ASW, Beteta CA, et al., 2022, Measurement of the lifetimes of promptly produced Omega(0)(c) and Xi(9)(c) baryons, SCIENCE BULLETIN, Vol: 67, Pages: 479-487, ISSN: 2095-9273
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- Citations: 4
Aaij R, Beteta CA, Ackernley T, et al., 2022, J/psi photoproduction in Pb-Pb peripheral collisions at root S-NN=5 TeV, PHYSICAL REVIEW C, Vol: 105, ISSN: 2469-9985
Aaij R, Beteta CA, Ackernley T, et al., 2022, Test of lepton universality in beauty-quark decays, NATURE PHYSICS, Vol: 18, Pages: 277-+, ISSN: 1745-2473
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- Citations: 45
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