Murray, D - Резултати от търсенето

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The LHCb VELO Upgrade module construction / Akiba, K. (NIKHEF, Amsterdam) ; Alexander, M. (Glasgow U.) ; Bertella, C. (Manchester U.) ; Biolchini, A. (NIKHEF, Amsterdam) ; Bitadze, A. (Manchester U.) ; Bogdanova, G. (Higher Sch. of Economics, Moscow) ; Borghi, S. (Manchester U.) ; Bowcock, T.J.V. (Liverpool U.) ; Bridges, K. (Liverpool U.) ; Brock, M. (Oxford U.) et al.
The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC collision rate, critically including the use of vertex information. [...]
arXiv:2404.13615; LHCb-DP-2024-001; LHCb-PAPER-2024-001.- 2024-06-17 - 66 p. - Published in : JINST 19 (2024) P06023 Fulltext: 2404.13615 - PDF; Publication - PDF;

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Measurement of the $Z$ boson production cross-section in $pp$ collisions at $\sqrt{s} = 5.02$ TeV / LHCb Collaboration
The first measurement of the

$Z$ boson production cross-section at centre-of-mass energy

$\sqrt{s} = 5.02\,$ TeV in the forward region is reported, using

$pp$ collision data collected by the LHCb experiment in year 2017, corresponding to an integrated luminosity of

$100 \pm 2\,\rm{pb^{-1}}$ . The production cross-section is measured for final-state muons in the pseudorapidity range

$2.0<\eta<4.5$ with transverse momentum

$p_{\rm{T}}> 20\,\rm{GeV/}\it{c}$ . [...]
arXiv:2308.12940; LHCb-PAPER-2023-010; CERN-EP-2023-141; LHCB-PAPER-2023-010.- Geneva : CERN, 2024-02-13 - 38 p. - Published in : JHEP 2402 (2024) 070 Fulltext: Publication - PDF; 2308.12940 - PDF; Related data file(s): ZIP;

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Measurement of the CKM angle $\gamma$ using the $B^{\pm}\rightarrow D^*h^{\pm}$ channels / LHCb Collaboration
A measurement of the

$CP$ -violating observables from

$B^{\pm}\rightarrow D^* K^{\pm}$ and

$\mbox{$B^{\pm}\rightarrow D^* \pi^{\pm}$}$ decays is presented, where

$D^* (D)$ is an admixture of

$D^{*0}$ and

$\bar{D}^{*0}$ (

$D^0$ and

$\bar{D}^0$ ) states and is reconstructed through the decay chains

$D^* \rightarrow D\pi^0/\gamma$ and

$\mbox{$D \to K_S^0 \pi^+\pi^-/K_S^0 K^+K^-$}$ . The measurement is performed by analysing the signal yield variation across the

$D$ decay phase space and is independent of any amplitude model. [...]
arXiv:2310.04277; LHCb-PAPER-2023-012; CERN-EP-2023-170.- Geneva : CERN, 2023-12-01 - 32 p. - Published in : JHEP 2312 (2023) 13 Fulltext: Publication - PDF; 2310.04277 - PDF; document - PDF; Related data file(s): ZIP;

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Measurement of prompt $D^+$ and $D^+_{s}$ production in $p\mathrm{Pb}$ collisions at $\sqrt {s_{\mathrm{NN}}}=5.02\,$ TeV / LHCb Collaboration
The production of prompt

$D^+$ and

$D^+_{s}$ mesons is studied in proton-lead collisions at a centre-of-mass energy of

$\sqrt {s_{\mathrm{NN}}}=5.02\,$ TeV. The data sample corresponding to an integrated luminosity of

$(1.58\pm0.02)\mathrm{nb}^{-1}$ is collected by the LHCb experiment at the LHC. [...]
arXiv:2309.14206; CERN-EP-2023-142; LHCb-PAPER-2023-006.- 2024-01-15 - 45 p. - Published in : JHEP 2401 (2024) 070 Fulltext: 2309.14206 - PDF; document - PDF;

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Measurement of CP violation in $B^0\to \psi(\to\ell^+\ell^-)K^0_\mathrm{S}(\to \pi^+\pi^-)$ decays / LHCb Collaboration
<--!html> A measurement of time-dependent

$C\!P$ violation in the decays of

$B^0$ and

$\overline{B}^0$ mesons to the final states

${J\!/\!\psi(\to\mu^+\mu^-)K^0_\mathrm{S}}$ ,

$\psi(2S)(\to\mu^+\mu^-)K^0_\mathrm{S}$ and

$J\!/\!\psi(\to e^+e^-)K^0_\mathrm{S}$ with

${K^0_\mathrm{S}}\to{\pi^+\pi^-}$ is presented. The data correspond to an integrated luminosity of

$6\,\mathrm{fb}^{-1}$ collected at a centre-of-mass energy of

$\sqrt{s}=13\,\mathrm{TeV}$ with the LHCb detector. [...]
arXiv:2309.09728; LHCb-PAPER-2023-013; CERN-EP-2023-177.- Geneva : CERN, 2024-01-08 - 12 p. - Published in : Phys. Rev. Lett. 132 (2024) 021801 Fulltext: 2309.09728 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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Measurement of the CKM angle $\gamma$ in the $B^0 \to DK^{*0}$ channel using self-conjugate $D \to K_S^0 h^+h^-$ decays / LHCb Collaboration
A model-independent study of CP violation in

$B^0 \to DK^{*0}$ decays is presented using data corresponding to an integrated luminosity of 9fb

$^{-1}$ collected by the LHCb experiment at centre-of-mass energies of

$\sqrt{s}=7, \, 8$ and

$13$ TeV. The CKM angle

$\gamma$ is determined by examining the distributions of signal decays in phase-space bins of the self-conjugate

$D \to K_S^0 h^+ h^-$ decays, where

$h = \pi, K$ . [...]
arXiv:2309.05514; LHCb-PAPER-2023-009; CERN-EP-2023-138.- Geneva : CERN, 2024-02-29 - 29 p. - Published in : Eur. Phys. J. C 84 (2024) 206 Fulltext: 2309.05514 - PDF; document - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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Observation of Cabibbo-suppressed two-body hadronic decays and precision mass measurement of the $\Omega_{c}^{0}$ baryon / LHCb Collaboration
The first observation of the singly Cabibbo-suppressed

$\Omega_{c}^{0}\to\Omega^{-}K^{+}$ and

$\Omega_{c}^{0}\to\Xi^{-}\pi^{+}$ decays is reported, using proton-proton collision data at a center-of-mass energy of

$13\,{\rm TeV}$ , corresponding to an integrated luminosity of

$5.4\,{\rm fb}^{-1}$ , collected with the LHCb detector between 2016 and 2018. The branching fraction ratios are measured to be

$\frac{\mathcal{B}(\Omega_{c}^{0}\to\Omega^{-}K^{+})}{\mathcal{B}(\Omega_{c}^{0}\to\Omega^{-}\pi^{+})}=[6.08\pm0.51({\rm stat})\pm 0.40({\rm syst})]\%$ ,

$\frac{\mathcal{B}(\Omega_{c}^{0}\to\Xi^{-}\pi^{+})}{\mathcal{B}(\Omega_{c}^{0}\to\Omega^{-}\pi^{+})}=[15.81\pm0.87({\rm stat})\pm0.44({\rm syst})\pm0.16({\rm ext})]\%$ . [...]
arXiv:2308.08512; LHCb-PAPER-2023-011; CERN-EP-2023-155.- Geneva : CERN, 2024-02-23 - 18 p. - Published in : Phys. Rev. Lett. 132 (2024) 081802 Fulltext: 2308.08512 - PDF; Publication - PDF; Related data file(s): ZIP;

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A search for rare $B \to D \mu^+\mu^-$ decays / LHCb Collaboration
A search for rare

$B \rightarrow D \mu^+ \mu^-$ decays is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb

$^{-1}$ . No significant signals are observed in the non-resonant

$\mu^+\mu^-$ modes, and upper limits of

$\mathcal{B}(B^0 \rightarrow \overline{D}^0 \mu^+ \mu^-) < 5.1 \times 10^{-8}$ ,

$\mathcal{B}(B^+ \rightarrow D_s^+ \mu^+ \mu^-) < 3.2 \times 10^{-8}$ ,

$\mathcal{B}(B_s^0 \rightarrow \overline{D}^0 \mu^+ \mu^-) < 1.6 \times 10^{-7}$ and

$f_c/f_u \cdot \mathcal{B}(B_c^+ \rightarrow D_s^+ \mu^+ \mu^-) < 9.6 \times 10^{-8}$ are set at the 95 % confidence level, where

$f_c$ and

$f_u$ are the fragmentation fractions of a

$B$ meson with a

$c$ and

$u$ quark respectively in proton-proton collisions. [...]
arXiv:2308.06162; LHCb-PAPER-2022-048; CERN-EP-2023-121; LHCB-PAPER-2022-048.- Geneva : CERN, 2024-02-07 - 23 p. - Published in : JHEP 2402 (2024) 032 Fulltext: 2308.06162 - PDF; document - PDF; Related data file(s): ZIP;

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$\Lambda_c^+$ polarimetry using the dominant hadronic mode / LHCb Collaboration
The polarimeter vector field for multibody decays of a spin-half baryon is introduced as a generalisation of the baryon asymmetry parameters. Using a recent amplitude analysis of the

$\Lambda_c^+ \to p K^- \pi^+$ decay performed at the LHCb experiment, we compute the distribution of the kinematic-dependent polarimeter vector for this process in the space of Mandelstam variables to express the polarised decay rate in a model-agnostic form. [...]
arXiv:2301.07010; LHCb-PAPER-2022-044; CERN-EP-2022-287.- Geneva : CERN, 2023-07-31 - 20 p. - Published in : JHEP 2307 (2023) 228 Fulltext: 2301.07010 - PDF; document - PDF; Related data file(s): ZIP;

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10.

Observation of New Baryons in the <math display="inline"><msubsup><mi mathvariant="normal">Ξ</mi><mi>b</mi><mo>-</mo></msubsup><msup><mi>π</mi><mo>+</mo></msup><msup><mi>π</mi><mo>-</mo></msup></math> and <math display="inline"><mrow><msubsup><mrow><mi mathvariant="normal">Ξ</mi></mrow><mrow><mi>b</mi></mrow><mrow><mn>0</mn></mrow></msubsup><msup><mrow><mi>π</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>π</mi></mrow><mrow><mo>-</mo></mrow></msup></mrow></math> Systems / LHCb Collaboration
The first observation and study of two new baryonic structures in the final state

$\Xi_b^0\pi^+\pi^-$ and the confirmation of the

$\Xi_b(6100)^-$ state in the

$\Xi_b^-\pi^+\pi^-$ decay mode are reported using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9

$\mathrm{fb}^{-1}$ . In addition, the properties of the known

$\Xi_b^{*0}$ ,

$\Xi_b^{'-}$ and

$\Xi_b^{*-}$ resonances are measured with improved precision. [...]
arXiv:2307.13399; LHCb-PAPER-2023-008; CERN-EP-2023-126.- Geneva : CERN, 2023-10-23 - 11 p. - Published in : Phys. Rev. Lett. 131 (2023) 171901 Fulltext: 2307.13399 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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Виж също: автори с подобни имена
11	Murray, D B
1	Murray, D J
10	Murray, D N
1	Murray, D O
7	Murray, D W
51	Murray, D.
3	Murray, Dan
1	Murray, Daniel A
1	Murray, Daniel W
1	Murray, David Kord
6	Murray, Denise E
1	Murray, Dianne
290	Murray, Donal
290	Murray, Dónal

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