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CERN Document Server 找到 146 筆記錄  1 - 10下一個最後  跳到記錄: 檢索需時 0.67 秒. 
1.
Measurement of the charge asymmetry of electrons from the decays of $W$ bosons produced in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV / CDF Collaboration
At the Fermilab Tevatron proton-antiproton ($p\bar{p}$) collider, high-mass electron-neutrino ($e\nu$) pairs are produced predominantly in the process $p \bar{p} \rightarrow W(\rightarrow e\nu) + X$. The asymmetry of the electron and positron yield as a function of their pseudorapidity constrain the slope of the ratio of the $u$- to $d$-quark parton distributions versus the fraction of the proton momentum carried by the quarks. [...]
arXiv:2107.04678; FERMILAB-PUB-21-293-E.- 2021-11-01 - 27 p. - Published in : Phys. Rev. D 104 (2021) 092002 Fulltext: Fulltext - PDF; fermilab-pub-21-293-e - PDF; 2107.04678 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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2.
Model-independent confirmation of the $Z(4430)^-$ state / LHCb collaboration
The decay $B^0\to \psi(2S) K^+\pi^-$ is analyzed using $\rm 3~fb^{-1}$ of $pp$ collision data collected with the LHCb detector. A model-independent description of the $\psi(2S) \pi$ mass spectrum is obtained, using as input the $K\pi$ mass spectrum and angular distribution derived directly from data, without requiring a theoretical description of resonance shapes or their interference. [...]
arXiv:1510.01951; CERN-PH-EP-2015-244; LHCB-PAPER-2015-038; CERN-PH-EP-2015-244; LHCB-PAPER-2015-038.- 2015-12-29 - 15 p. - Published in : Phys. Rev. D 92 (2015) 112009 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevD.92.112009 - PDF; arXiv:1510.01951 - PDF; External link: Figures, tables and other information
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3.
A Study of the Energy Dependence of the Underlying Event in Proton-Antiproton Collisions / for the CDF Collaboration
We study charged particle production in proton-antiproton collisions at 300 GeV, 900 GeV, and 1.96 TeV. We use the direction of the charged particle with the largest transverse momentum in each event to define three regions of eta-phi space; toward, away, and transverse. [...]
arXiv:1508.05340; FERMILAB-PUB-15-361-E; FERMILAB-PUB-15-361-E.- 2015-11-23 - 21 p. - Published in : Phys. Rev. D 92 (2015) 092009 Fulltext: PDF; External links: Fermilab Accepted Manuscript; Fermilab Today Result of the Week; Rivet analyses reference
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4.
LHCb Detector Performance / LHCb collaboration
The LHCb detector is a forward spectrometer at the Large Hadron Collider (LHC) at CERN. The experiment is designed for precision measurements of CP violation and rare decays of beauty and charm hadrons. [...]
arXiv:1412.6352; LHCB-DP-2014-002; CERN-PH-EP-2014-290; CERN-PH-EP-2014-290; LHCB-DP-2014-002.- Geneva : CERN, 2015-03-05 - 73 p. - Published in : Int. J. Mod. Phys. A 30 (2015) 1530022 Fulltext: PDF; World Scientific Open Access article: PDF; External link: Preprint
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5.
Measurement of the inelastic $pp$ cross-section at a centre-of-mass energy of $\sqrt{s}=7$ TeV / LHCb Collaboration
The cross-section for inelastic proton-proton collisions, with at least one prompt long-lived charged particle of transverse momentum $p_{\rm T}>0.2$ GeV/$c$ in the pseudorapidity range $2.0<\eta<4.5$, is measured by the LHCb experiment at a centre-of-mass energy of $\sqrt{s}=7$ TeV. The cross-section in this kinematic range is determined to be $\sigma_{\rm inel}^{\rm acc} = 55.0 \pm 2.4$ mb within the spectrometer acceptance with an experimental uncertainty that is dominated by systematic contributions. [...]
arXiv:1412.2500; CERN-PH-EP-2014-285; LHCB-PAPER-2014-057; LHCB-PAPER-2014-057; CERN-PH-EP-2014-285.- Geneva : CERN, 2015-02-19 - 15 p. - Published in : JHEP 02 (2015) 129 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Rivet analyses reference
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6.
Observation of the rare $B^0_s\to\mu^+\mu^-$ decay from the combined analysis of CMS and LHCb data / CMS and LHCb Collaborations
A joint measurement is presented of the branching fractions $B^0_s\to\mu^+\mu^-$ and $B^0\to\mu^+\mu^-$ in proton-proton collisions at the LHC by the CMS and LHCb experiments. The data samples were collected in 2011 at a centre-of-mass energy of 7 TeV, and in 2012 at 8 TeV. [...]
arXiv:1411.4413; CERN-PH-EP-2014-220; CMS-BPH-13-007; LHCB-PAPER-2014-049; CERN-PH-EP-2014-220; CMS-BPH-13-007; LHCB-PAPER-2014-049.- 2015-05-13 - 46 p. - Published in : Nature 522 (2015) 68-72 Fulltext: openaccess_nature14474 - PDF; arXiv:1411.4413 - PDF; Fulltext from Publisher: nature14474 - PDF; 10.1038_nature14474 - PDF; Related data file(s): ZIP; External links: Interactions.org article; Fermilab News article; Los Angeles Times article
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7.
Measurement of $B_c^+$ production in proton-proton collisions at $\sqrt{s}=8$ TeV / LHCb Collaboration
Production of $B_c^+$ mesons in proton-proton collisions at a center-of-mass energy of 8 TeV is studied with data corresponding to an integrated luminosity of $2.0~{\rm fb^{-1}}$ recorded by the LHCb experiment. The ratio of production cross-sections times branching fractions between the $B_c^+\to J/\psi \pi^+$ and $B^+\to J/\psi K^+$ decays is measured as a function of transverse momentum and rapidity in the regions $0 < p_{\rm T} < 20{\rm GeV}/c$ and $2.0 < y < 4.5$. [...]
arXiv:1411.2943; CERN-PH-EP-2014-269; LHCB-PAPER-2014-050; LHCB-PAPER-2014-050; CERN-PH-EP-2014-269.- Geneva : CERN, 2015-04-02 - 9 p. - Published in : Phys. Rev. Lett. 114 (2015) 132001 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data files(s): ZIP; External link: Preprint
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8.
Study of $\eta-\eta'$ mixing from measurement of $B^0_{(s)}\to J/\psi\eta^{(')}$ decay rates / LHCb Collaboration
A study of $B^0$and $B^0_s$ meson decays into $J/\psi\eta$ and $J/\psi\eta^{\prime}$ final states is performed using a data set of proton-proton collisions at centre-of-mass energies of 7 and 8TeV, collected by the LHCb experiment and corresponding to 3.0fb$^{-1}$ of integrated luminosity. The decay $B^0 \rightarrow J/\psi \eta^{\prime}$ is observed for the first time. [...]
arXiv:1411.0943; CERN-PH-EP-2014-266; LHCB-PAPER-2014-056; LHCB-PAPER-2014-056; CERN-PH-EP-2014-266.- Geneva : CERN, 2015-01-08 - 26 p. - Published in : JHEP 01 (2015) 024 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF;
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9.
Search for $CP$ violation in $D^0\to \pi^-\pi^+\pi^0$ decays with the energy test / LHCb Collaboration
A search for time-integrated CP violation in the Cabibbo-suppressed decay $D^0\to\pi^-\pi^+\pi^0$ is performed using for the first time an unbinned model-independent technique known as the energy test. Using proton-proton collision data, corresponding to an integrated luminosity of 2.0 fb$^{-1}$ collected by the LHCb detector at a centre-of-mass energy of $\sqrt{s}$ = 8 TeV, the world's best sensitivity to CP violation in this decay is obtained [...]
arXiv:1410.4170; CERN-PH-EP-2014-251; LHCB-PAPER-2014-054; LHCB-PAPER-2014-054; CERN-PH-EP-2014-251.- Geneva : CERN, 2015-01-05 - 10 p. - Published in : Phys. Lett. B 740 (2015) 158 Article from SCOAP3: PDF; Elsevier Open Access article : PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint
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10.
Precision luminosity measurements at LHCb / LHCb collaboration
Measuring cross-sections at the LHC requires the luminosity to be determined accurately at each centre-of-mass energy $\sqrt{s}$. In this paper results are reported from the luminosity calibrations carried out at the LHC interaction point 8 with the LHCb detector for $\sqrt{s}$ = 2.76, 7 and 8 TeV (proton-proton collisions) and for $\sqrt{s_{NN}}$ = 5 TeV (proton-lead collisions). [...]
arXiv:1410.0149; LHCB-PAPER-2014-047; CERN-PH-EP-2014-221; LHCB-PAPER-2014-047; CERN-PH-EP-2014-221.- Geneva : CERN, 2014-12-05 - 99 p. - Published in : JINST 9 (2014) P12005 Fulltext: arXiv:1410.0149 - PDF; 10.1088_1748-0221_9_12_P12005 - PDF; IOP Open Access article: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint
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