Search Results - "I. B. Bediaga"
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Observation of a J /ΨΛ Resonance Consistent with a Strange Pentaquark Candidate in B - → J /ψΛ( p )over-bar Decays
Published in Physical review letters (17-07-2023)“…An amplitude analysis of B- -> J/psi Lambda(p) over bar decays is performed using 4400 signal candidates selected on a data sample of pp collisions recorded…”
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Modification of χ c 1 ( 3872 ) and ψ ( 2 S ) Production in p Pb Collisions at s NN = 8.16 TeV
Published in Physical review letters (01-06-2024)“…The LHCb Collaboration measures production of the exotic hadron χ c 1 ( 3872 ) in proton-nucleus collisions for the first time. Comparison with the charmonium…”
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Amplitude analysis and branching fraction measurement of $$ {B}^{+}\to {D}^{\ast -}{D}_s^{+}{\pi}^{+} $$ decays
Published in The journal of high energy physics (21-08-2024)“…A bstract The decays of the B + meson to the final state $$ {D}^{\ast -}{D}_s^{+}{\pi}^{+} $$ D ∗ − D s + π + are studied in proton-proton collision data…”
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First observation of the $$ {\Lambda}_b^0 $$ → D+D−Λ decay
Published in The journal of high energy physics (16-07-2024)“…A bstract The $$ {\Lambda}_b^0 $$ Λ b 0 → D + D − Λ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at…”
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Amplitude analysis of the $$ {\Lambda}_{\textrm{b}}^0\to {\textrm{pK}}^{-}\upgamma $$ decay
Published in The journal of high energy physics (18-06-2024)“…A bstract The resonant structure of the radiative decay $$ {\Lambda}_b^0\to {pK}^{-}\gamma $$ Λ b 0 → pK − γ in the region of proton-kaon invariant-mass up to…”
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Fraction of χ c Decays in Prompt J / ψ Production Measured in p Pb Collisions at s NN = 8.16 TeV
Published in Physical review letters (01-03-2024)“…The fraction of χ c 1 and χ c 2 decays in the prompt J / ψ yield, F χ c → J / ψ = σ χ c → J / ψ / σ J / ψ , is measured by the LHCb detector in p Pb collisions…”
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Measurements of the branching fraction ratio B(ϕ→μ+μ−)/B(ϕ→e+e−) with charm meson decays
Published in The journal of high energy physics (24-05-2024)“…Measurements of the branching fraction ratio B(ϕ→μ+μ−)/B(ϕ→e+e−) with Ds +→π+ϕ and D+→ π+ϕ decays, denoted Rϕπ s and Rϕπ d, are presented. The analysis is…”
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Multiplicity dependence of σψ(2S)/σJ/ψ in pp collisions at $$ \sqrt{s} $$ = 13 TeV
Published in The journal of high energy physics (22-05-2024)“…A bstract The ratio of production cross-sections of ψ (2 S ) over J/ψ mesons as a function of charged-particle multiplicity in proton-proton collisions at a…”
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Enhanced Production of Λ b 0 Baryons in High-Multiplicity p p Collisions at s = 13 TeV
Published in Physical review letters (01-02-2024)“…The production rate of Λ b 0 baryons relative to B 0 mesons in p p collisions at a center-of-mass energy s = 13 TeV is measured by the LHCb experiment. The…”
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Improved Measurement of C P Violation Parameters in B s 0 → J / ψ K + K − Decays in the Vicinity of the ϕ ( 1020 ) Resonance
Published in Physical review letters (01-02-2024)“…The decay-time-dependent C P asymmetry in B s 0 → J / ψ ( → μ + μ − ) K + K − decays is measured using proton-proton collision data, corresponding to an…”
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Study of CP violation in B 0 → DK(892) 0 decays with D → Kπ(ππ), ππ(ππ), and KK final states
Published in The journal of high energy physics (01-05-2024)“…A measurement of CP-violating observables associated with the interference of B 0 → D 0 K*(892) 0 and B 0 → D 0 (over bar)K*(892) 0 decay amplitudes is…”
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Observation of the $$ {B}_c^{+}\to J/\psi {\pi}^{+}{\pi}^0 $$ decay
Published in The journal of high energy physics (30-04-2024)“…A bstract The first observation of the $$ {B}_c^{+}\to J/\psi {\pi}^{+}{\pi}^0 $$ B c + → J / ψ π + π 0 decay is reported with high significance using…”
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Prompt and nonprompt ψ(2S) production in pPb collisions at $$ \sqrt{s_{\textrm{NN}}} $$ = 8.16 TeV
Published in The journal of high energy physics (19-04-2024)“…A bstract The production of ψ (2 S ) mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of $$ \sqrt{s_{\textrm{NN}}} $$ s NN = 8 . 16…”
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Search for CP violation in the phase space of $$ {D}^0\to {K}_S^0{K}^{\pm }{\pi}^{\mp } $$ decays with the energy test
Published in The journal of high energy physics (19-03-2024)“…A bstract A search for CP violation in $$ {D}^0\to {K}_S^0{K}^{+}{\pi}^{-} $$ D 0 → K S 0 K + π − and $$ {D}^0\to {K}_S^0{K}^{-}{\pi}^{+} $$ D 0 → K S 0 K − π…”
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Study of $$ {B}_c^{+}\to {\chi}_c{\pi}^{+} $$ decays
Published in The journal of high energy physics (22-02-2024)“…A bstract A study of $$ {B}_c^{+}\to {\chi}_c{\pi}^{+} $$ B c + → χ c π + decays is reported using proton-proton collision data, collected with the LHCb…”
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A model-independent measurement of the CKM angle γ in partially reconstructed B± → Dh± decays with D → $$ {K}_S^0 $$h+h− (h = π, K)
Published in The journal of high energy physics (16-02-2024)“…A bstract A measurement of CP -violating observables in B ± → D * K ± and B ± → D * π ± decays is made where the photon or neutral pion from the D * → D γ or D…”
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Observation of $${{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {\hspace{1.79993pt}\overline{\hspace{-1.79993pt}D}} {}^{()0}{{K} ^-} $$ and $${{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {{D} ^{-}_{s}} $$ decays
Published in The European physical journal. C, Particles and fields (05-06-2024)“…Abstract The decays $${{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {\hspace{1.79993pt}\overline{\hspace{-1.79993pt}D}} {}^{(*)0}{{K} ^-} $$ Λ b…”
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Observation of $${{\varXi } ^0_{b}} \rightarrow {{\varXi } ^+_{c}} {{D} ^-_{s}} $$ and $${{\varXi } ^-_{b}} \rightarrow {{\varXi } ^0_{c}} {{D} ^-_{s}} $$ decays
Published in The European physical journal. C, Particles and fields (07-03-2024)“…Abstract The $$\Xi _b^0 \rightarrow \Xi _c^+ D_s^-$$ Ξ b 0 → Ξ c + D s - and $$\Xi _b^- \rightarrow \Xi _c^0 D_s^-$$ Ξ b - → Ξ c 0 D s - decays are observed…”
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Evidence for the decays B0 → $$ \overline{D} $$()0ϕ and updated measurements of the branching fractions of the $$ {B}_s^0 $$ → $$ \overline{D} $$()0ϕ decays
Published in The journal of high energy physics (20-10-2023)“…A bstract Evidence for the decays B 0 → $$ \overline{D} $$ D ¯ 0 ϕ and B 0 → $$ \overline{D} $$ D ¯ *0 ϕ is reported with a significance of 3.6 σ and 4.3 σ ,…”
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