CERN Accelerating science

CERN Document Server 找到 175 笔记录  1 - 10下一个最後  跳到记录: 检索需时 1.22 秒. 
1.
Hadron Spectroscopy with Lattice QCD / Bulava, John (DESY, Zeuthen) ; Briceño, Raúl (Jefferson Lab ; Old Dominion U.) ; Detmold, William (MIT, Cambridge, CTP ; IAIFI, Cambridge) ; Döring, Michael (George Washington U. ; Jefferson Lab) ; Edwards, Robert G. (Jefferson Lab) ; Francis, Anthony (Bern U. ; Taiwan, Natl. Chiao Tung U. ; CERN) ; Knechtli, Francesco (Wuppertal U.) ; Lewis, Randy (York U., Canada) ; Prelovsek, Sasa (Ljubljana U. ; Stefan Inst., Ljubljana) ; Ryan, Sinéad M. (TCD, Dublin) et al.
The status and prospects for investigations of exotic and conventional hadrons with lattice QCD are discussed. [...]
arXiv:2203.03230 ; FERMILAB-FN-1149-T.
- 35 p.
Fermilab Library Server - eConf - Fulltext - Fulltext
2.
The energy-dependent $\pi^+ \pi^+ \pi^+$ scattering amplitude from QCD / Hansen, Maxwell T. (CERN ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Briceño, Raul A. (Jefferson Lab ; Old Dominion U.) ; Edwards, Robert G. (Jefferson Lab) ; Thomas, Christopher E. (Cambridge U., DAMTP) ; Wilson, David J. (Cambridge U., DAMTP) /Hadron Spectrum Collaboration
Focusing on three-pion states with maximal isospin ($\pi^+\pi^+\pi^+$), we present the first non-perturbative determination of an energy-dependent three-hadron scattering amplitude from first-principles QCD. The calculation combines finite-volume three-hadron energies, extracted using numerical lattice QCD, with a relativistic finite-volume formalism, required to interpret the results. [...]
arXiv:2009.04931; CERN-TH-2020-147; JLAB-THY-20-3242; CERN-TH-2020-147.- 2021-01-06 - 7 p. - Published in : Phys. Rev. Lett. 126 (2021) 012001  Article from SCOAP3: PDF; Fulltext: PDF;
3.
Differential branching fraction and angular moments analysis of the decay $B^0 \to K^+ \pi^- \mu^+ \mu^-$ in the $K^*_{0,2}(1430)^0$ region / LHCb collaboration
Measurements of the differential branching fraction and angular moments of the decay $B^0 \to K^+ \pi^- \mu^+ \mu^-$ in the $K^*_{0,2}(1430)^0$ in the $K^+\pi^-$ invariant mass range $1330 < m (K^+ \pi^-) <1530~ \text{MeV}/c^2$ are presented. Proton-proton collision data are used, corresponding to an integrated luminosity of 3 fb$^{-1}$ collected by the LHCb experiment. [...]
arXiv:1609.04736; CERN-EP-2016-215; LHCB-PAPER-2016-025; CERN-EP-2016-215; LHCB-PAPER-2016-025.- Geneva : CERN, 2016-12-15 - 23 p. Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Figures, tables and other information
4.
Search for Higgs-like bosons decaying into long-lived exotic particles / LHCb collaboration
A search is presented for massive long-lived particles, in the 20-60 GeV mass range with lifetimes between 5 and 100 ps. The dataset used corresponds to 0.62 1\fb of proton-proton collision data collected by the LHCb detector at sqrt(s)=7 TeV. [...]
arXiv:1609.03124; LHCB-PAPER-2016-014; CERN-EP-2016-188; LHCB-PAPER-2016-014; CERN-EP-2016-188.- Geneva : CERN, 2016-12-02 - 29 p. - Published in : Eur. Phys. J. C 76 (2016) 664 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Figures, tables and other information
5.
Measurement of the CP-violating phase and decay-width difference in $B_s^0\to\psi(2S)\phi$ decays / LHCb collaboration
A time-dependent angular analysis of $B_s^0\to\psi(2S)\phi$ decays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0\invfb collected during Run 1 of the LHC. [...]
arXiv:1608.04855; CERN-EP-2016-192; LHCB-PAPER-2016-027; LHCB-PAPER-2016-027.- 2016-11-10 - 10 p. - Published in : Phys. Lett. B 762 (2016) 253-262 Article from SCOAP3: PDF; Fulltext: PDF; External link: Figures, tables and other information
6.
Measurement of forward $W\to e\nu$ production in $pp$ collisions at $\sqrt{s}=8$ TeV / LHCb collaboration
A measurement of the cross-section for $W \to e\nu$ production in $pp$ collisions is presented using data corresponding to an integrated luminosity of $2\,$fb$^{-1}$ collected by the LHCb experiment at a centre-of-mass energy of $\sqrt{s}=8\,$TeV. The electrons are required to have more than $20\,$GeV of transverse momentum and to lie between 2.00 and 4.25 in pseudorapidity. [...]
arXiv:1608.01484; LHCB-PAPER-2016-024; CERN-EP-2016-179; LHCB-PAPER-2016-024; CERN-EP-2016-179.- Geneva : CERN, 2016-10-07 - 29 p. - Published in : JHEP 10 (2016) 030 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Figures, tables and other information
7.
Search for the suppressed decays $B^{+}\rightarrow K^{+}K^{+}\pi^{-}$ and $B^{+}\rightarrow \pi^{+}\pi^{+}K^{-}$ / LHCb Collaboration
A search is made for the highly-suppressed B meson decays $B^{+}\rightarrow K^{+}K^{+}\pi^{-}$ and $B^{+}\rightarrow \pi^{+}\pi^{+}K^{-}$ using a data sample corresponding to an integrated luminosity of 3.0 $fb^{-1}$ collected by the LHCb experiment in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. No evidence is found for the decays, and upper limits at 90\% confidence level are determined to be $\mathcal{B}(B^{+}\rightarrow K^{+}K^{+}\pi^{-}) < 1.1\times 10^{-8}$ and $\mathcal{B}(B^{+}\rightarrow \pi^{+}\pi^{+}K^{-}) < 4.6\times 10^{-8}$..
arXiv:1608.01478; LHCB-PAPER-2016-023; CERN-EP-2016-177.- Geneva : CERN, 2017-02-10 - 10 p. - Published in : Phys. Lett. B 765 (2017) 307-316 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
8.
Amplitude analysis of $B^- \to D^+ \pi^- \pi^-$ decays / LHCb Collaboration
The Dalitz plot analysis technique is used to study the resonant substructures of $B^- \to D^+ \pi^- \pi^-$ decays in a data sample corresponding to 3.0 fb$^-1$ of $pp$ collision data recorded by the LHCb experiment during 2011 and 2012. A model-independent analysis of the angular moments demonstrates the presence of resonances with spins 1, 2 and 3 at high $D^+\pi^-$ mass. [...]
arXiv:1608.01289; CERN-EP-2016-184; LHCB-PAPER-2016-026; LHCB-PAPER-2016-026; CERN-EP-2016-184.- Geneva : CERN, 2016-10-05 - 23 p. - Published in : Phys. Rev. D 94 (2016) 072001 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevD.94.072001 - PDF; arXiv:1608.01289 - PDF; Related data file(s): ZIP; External link: Figures, tables and other information
9.
Measurement of the ratio of branching fractions $\mathcal{B}(B_{c}^{+} \to J/\psi K^{+})/\mathcal{B}(B_{c}^{+} \to J/\psi\pi^{+})$ / LHCb collaboration
The ratio of branching fractions $R_{K/\pi} \equiv \mathcal{B}(B_{c}^{+} \to J/\psi K^{+})/\mathcal{B}(B_{c}^{+} \to J/\psi\pi^{+})$ is measured with $pp$ collision data collected by the LHCb experiment at centre-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of 3${\mbox{fb}^{-1}}$. It is found to be $ R_{K/\pi} = 0.079\pm0.007\pm0.003$, where the first uncertainty is statistical and the second is systematic. [...]
arXiv:1607.06823; LHCB-PAPER-2016-020; CERN-EP-2016-173; LHCB-PAPER-2016-020; CERN-EP-2016-173.- Geneva : CERN, 2016-09-27 - 16 p. - Published in : JHEP 09 (2016) 153 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Figures, tables and other information
10.
Observation of $\eta_{c}(2S) \to p \bar p$ and search for $X(3872) \to p \bar p$ decays / LHCb collaboration
The first observation of the decay $\eta_{c}(2S) \to p \bar p$ is reported using proton-proton collision data corresponding to an integrated luminosity of $3.0\rm \, fb^{-1}$ recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The $\eta_{c}(2S)$ resonance is produced in the decay $B^{+} \to [c\bar c] K^{+}$ [...]
arXiv:1607.06446; CERN-EP-2016-175; LHCB-PAPER-2016-016.- 2017-06-10 - 9 p. - Published in : Phys. Lett. B 769 (2017) 305-313 Article from SCOAP3: PDF; Fulltext: PDF; External link: Figures, tables and other information

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