Publications
728 results found
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, Observations of B<sub>S</sub><SUP>0</SUP> →ψ(2S)η and B<sub>(s)</sub><SUP>0</SUP> →ψ(2S)π<SUP>+</SUP>π<SUP>-</SUP> decays, NUCLEAR PHYSICS B, Vol: 871, Pages: 403-419, ISSN: 0550-3213
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- Citations: 22
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, Measurement of <i>CP</i> violation and the <i>B</i><sub>s</sub><SUP>0</SUP> meson decay width difference with <i>B</i><sub>s</sub><SUP>0</SUP> → <i>J</i>/ψ <i>K</i><SUP>+</SUP><i>K</i><SUP>-</SUP> and <i>B</i><sub>s</sub><SUP>0</SUP> → <i>J</i>/ψ <i>π</i><SUP>+</SUP> <i>π</i><SUP>-</SUP>decays, PHYSICAL REVIEW D, Vol: 87, ISSN: 2470-0010
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- Citations: 74
Aaij R, Beteta CA, Adeva B, et al., 2013, Measurement of the branching fractions of the decays <i>B<sub>s</sub></i><SUP>0</SUP> → (<i>D</i>)over-bar<SUP>0</SUP><i>K</i><SUP>-</SUP> π<SUP>+</SUP> and <i>B</i><SUP>0</SUP> → (<i>D</i>)over-bar<SUP>0</SUP><i>K</i><SUP>+</SUP> π<SUP>-</SUP>, PHYSICAL REVIEW D, Vol: 87, ISSN: 2470-0010
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- Citations: 21
Aaij R, Abellan Beteta C, Adametz A, et al., 2013, Measurements of the branching fractions of B+ -> p(p)over-barK(+) decays, European Physical Journal C: Particles and Fields, Vol: 73, ISSN: 1124-1861
The branching fractions of the decay B+ →ppK¯ + for different intermediate states are measured usingdata, corresponding to an integrated luminosity of 1.0 fb−1,collected by the LHCb experiment. The total branching fraction,its charmless component (Mpp¯ < 2.85 GeV/c2) andthe branching fractions via the resonant cc¯ states ηc(1S) andψ(2S) relative to the decay via a J/ψ intermediate state areB(B+ → ppK¯ +)totalB(B+ → J/ψK+ → ppK¯ +)= 4.91 ± 0.19 (stat) ± 0.14 (syst),B(B+ → ppK¯ +)Mpp¯<2.85 GeV/c2B(B+ → J/ψK+ → ppK¯ +)= 2.02 ± 0.10 (stat) ± 0.08 (syst),B(B+ → ηc(1S)K+ → ppK¯ +)B(B+ → J/ψK+ → ppK¯ +)= 0.578 ± 0.035 (stat) ± 0.027 (syst),B(B+ → ψ(2S)K+ → ppK¯ +)B(B+ → J/ψK+ → ppK¯ +)= 0.080 ± 0.012 (stat) ± 0.009 (syst).Upper limits on the B+ branching fractions into the ηc(2S)meson and into the charmonium-like states X(3872) andX(3915) are also obtained.
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, First Measurement of the <i>CP</i>-Violating Phase in <i>B<sub>s</sub></i><SUP>0</SUP> → φφ Decays, PHYSICAL REVIEW LETTERS, Vol: 110, ISSN: 0031-9007
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- Citations: 20
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, Search for direct <i>CP</i> violation in <i>D</i><SUP>0</SUP> → <i>h</i><SUP>-</SUP><i>h</i><SUP>+</SUP> modes using semileptonic <i>B</i> decays, PHYSICS LETTERS B, Vol: 723, Pages: 33-43, ISSN: 0370-2693
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- Citations: 51
Aaij R, Abellan Beteta C, Adametz A, et al., 2013, Prompt charm production in <i>pp</i> collisions at √<i>s</i>=7 TeV, NUCLEAR PHYSICS B, Vol: 871, Pages: 1-20, ISSN: 0550-3213
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- Citations: 225
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, Production of <i>J</i>/ψ and γ mesons in <i>pp</i> collisions at √<i>s</i>=8 TeV, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 54
Aaij R, Beteta CAL, Adeva B, et al., 2013, Search for <i>CP</i> violation in <i>D</i><SUP>+</SUP> → φπ<SUP>+</SUP> and <i>D<sub>s</sub></i><SUP>+</SUP> → <i>K<sub>S</sub></i><SUP>0</SUP>π<SUP>+</SUP> decays, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 18
Aaij R, Beteta CA, Adeva B, et al., 2013, Precision measurement of <i>D</i> meson mass differences, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 49
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, First Observation of <i>CP</i> Violation in the Decays of B<i><sub>s</sub></i><SUP>0</SUP> Mesons, PHYSICAL REVIEW LETTERS, Vol: 110, ISSN: 0031-9007
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- Citations: 110
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, Determination of the <i>X</i>(3872) Meson Quantum Numbers, PHYSICAL REVIEW LETTERS, Vol: 110, ISSN: 0031-9007
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- Citations: 276
Aaij R, Beteta CA, Adametz A, et al., 2013, Search for Rare B-(s)(0) -> mu(+)mu(-)mu(+)mu(-) Decays, Physical Review Letters, Vol: 110, ISSN: 1079-7114
A search for the decays B0s ! þ þ and B0 ! þ þ is performed using data,corresponding to an integrated luminosity of 1:0 fb 1, collected with the LHCb detector in 2011. Thenumber of candidates observed is consistent with the expected background and, assuming phase-spacemodels of the decays, limits on the branching fractions are set: BðB0s ! þ þ Þ<1:6ð1:2Þ10 8and BðB0 ! þ þ Þ < 6:6ð5:3Þ 10 9 at 95% (90%) confidence level. In addition, limits are setin the context of a supersymmetric model which allows for the B0ðsÞ meson to decay into a scalar (S)and pseudoscalar particle (P), where S and P have masses of 2:5 GeV=c and 214:3 MeV=c, respectively,both resonances decay into þ . The branching fraction limits for these decays are BðB0s ! SPÞ <1:6ð1:2Þ 10 8 and BðB0 ! SPÞ < 6:3ð5:1Þ 10 9 at 95% (90%) confidence level.DO
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, First observations of (<i>B</i>)over-bar<i><sub>s</sub></i><SUP>0</SUP> → <i>D</i><SUP>+</SUP><i>D</i><SUP>-</SUP>, <i>D<sub>s</sub></i><SUP>+</SUP><i>D</i><SUP>-</SUP> and <i>D</i><SUP>0</SUP>(<i>D</i>)over-bar<SUP>0</SUP> decays, PHYSICAL REVIEW D, Vol: 87, ISSN: 2470-0010
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- Citations: 21
Aaij R, Abellan Beteta C, Adametz A, et al., 2013, Measurement of the forward energy flow in pp collisions at root s=7 TeV, European Physical Journal C, Vol: 73, ISSN: 1434-6052
The energy flow created in pp collisions at √s =7 TeV is studied within the pseudorapidity range 1.9 <η<4.9 with data collected by the LHCb experiment. The measurementsare performed for inclusive minimum-bias interactions,hard scattering processes and events with an enhancedor suppressed diffractive contribution. The resultsare compared to predictions given by PYTHIA-based andcosmic-ray event generators, which provide different modelsof soft hadronic interactions.
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, Precision measurement of the B<sub>s</sub><SUP>0</SUP>-(B)over-bar<sub>s</sub><SUP>0</SUP> oscillation frequency with the decay B<sub>s</sub><SUP>0</SUP> → D<sub>s</sub><SUP>-</SUP>π<SUP>+</SUP>, NEW JOURNAL OF PHYSICS, Vol: 15, ISSN: 1367-2630
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- Citations: 84
Aaij R, Ilan Beteta CA, Adeva B, et al., 2013, Observation of the suppressed ADS modes B-+/- -> [pi K-+/-(-/+)pi(+)pi(-)](D)K-+/- and B-+/- -> [pi K-+/-(-/+)pi(+)pi(-)](D)pi(+/-), Physics Letters B, Vol: 723, Pages: 44-53, ISSN: 0370-2693
Aaij R, Beteta CA, Adametz A, et al., 2013, Study of <i>B</i><SUP>0</SUP> → <i>D</i>*<SUP>-</SUP> π<SUP>+</SUP>π<SUP>-</SUP>π<SUP>+</SUP> and <i>B</i><SUP>0</SUP> → <i>D</i>*<SUP>-</SUP><i>K</i><SUP>+</SUP>π<SUP>-</SUP>π<SUP>+</SUP> decays, PHYSICAL REVIEW D, Vol: 87, ISSN: 2470-0010
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- Citations: 17
Aaij R, Abellan Beteta C, Adametz A, et al., 2013, Measurement of the Λ<i><sub>b</sub></i><SUP>0</SUP>, Ξ<i><sub>b</sub></i><SUP>-</SUP>, and Ω<i><sub>b</sub></i><SUP>-</SUP> Baryon Masses, PHYSICAL REVIEW LETTERS, Vol: 110, ISSN: 0031-9007
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- Citations: 119
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, Limits on neutral Higgs boson production in the forward region in <i>pp</i> collisions at √<i>s</i>=7 TeV, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 7
Aaij R, Beteta CA, Adeva B, et al., 2013, Measurement of the <i>B</i><SUP>0</SUP> → <i>K</i>*<SUP>0</SUP> <i>e</i><SUP>+</SUP> <i>e</i><SUP>-</SUP> branching fraction at low dilepton mass, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 43
Bharucha A, Bigi II, Bobeth C, et al., 2013, Implications of LHCb measurements and future prospects, European Physical Journal C, Vol: 73, ISSN: 1434-6052
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, Observation of the decay <i>B<sub>c</sub></i><SUP>+</SUP> → ψ(2<i>S</i>)π<SUP>+</SUP>, PHYSICAL REVIEW D, Vol: 87, ISSN: 2470-0010
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- Citations: 32
Aaij R, Abellan Beteta C, Adeva B, et al., 2013, Search for the decay <i>B<sub>s</sub></i><SUP>0</SUP> → <i>D</i>*<SUP>∓</SUP>π<SUP>±</SUP>, PHYSICAL REVIEW D, Vol: 87, ISSN: 2470-0010
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- Citations: 7
Aaij R, Abellan Beteta C, Adametz A, et al., 2013, Measurement of the time-dependent <i>CP</i> asymmetry in <i>B</i><SUP>0</SUP> → <i>J</i>/ψ<i>K</i><sub>S</sub><SUP>0</SUP> decays, PHYSICS LETTERS B, Vol: 721, Pages: 24-31, ISSN: 0370-2693
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- Citations: 13
Aaij R, Abellan Beteta C, Adametz A, et al., 2013, First Observation of the Decay <i>B</i>*<sub>s2</sub>(5840)<SUP>0</SUP> → <i>B</i>*<SUP>+</SUP><i>K</i><SUP>-</SUP> and Studies of Excited <i>B</i><sub>s</sub><SUP>0</SUP> Mesons, PHYSICAL REVIEW LETTERS, Vol: 110, ISSN: 0031-9007
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- Citations: 38
Aaij R, Abellan Beteta C, Adametz A, et al., 2013, Amplitude analysis and branching fraction measurement of (<i>B</i>)over-bar<i><sub>s</sub></i><SUP>0</SUP> → <i>J</i>/ψ<i>K</i><SUP>+</SUP><i>K</i><SUP>-</SUP>, PHYSICAL REVIEW D, Vol: 87, ISSN: 2470-0010
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- Citations: 39
Aaij R, Abellan Beteta C, Adametz A, et al., 2013, Measurement of the fragmentation fraction ratio <i>f<sub>s</sub></i>/<i>f<sub>d</sub></i> and its dependence on <i>B</i> meson kinematics, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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- Citations: 79
Aaij R, Beteta CA, Adametz A, et al., 2013, Exclusive <i>J</i>/ψ and ψ(2<i>S</i>) production in <i>pp</i> collisions at √<i>s</i>=7 TeV, JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, Vol: 40, ISSN: 0954-3899
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- Citations: 115
Aaij R, Abellan Beteta C, Adametz A, et al., 2013, Observation of <i>D</i><SUP>0</SUP> - (<i>D</i>)over-bar<SUP>0</SUP> Oscillations, PHYSICAL REVIEW LETTERS, Vol: 110, ISSN: 0031-9007
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- Citations: 66
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