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CERN Document Server Намерени са 537 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.71 секунди. 
1.
Light isovector resonances in $\pi^- p \to \pi^-\pi^-\pi^+ p$ at 190 GeV/${\it c}$ / COMPASS Collaboration
We have performed the most comprehensive resonance-model fit of $\pi^-\pi^-\pi^+$ states using the results of our previously published partial-wave analysis (PWA) of a large data set of diffractive-dissociation events from the reaction $\pi^- + p \to \pi^-\pi^-\pi^+ + p_\text{recoil}$ with a 190 GeV/$c$ pion beam. The PWA results, which were obtained in 100 bins of three-pion mass, $0.5 < m_{3\pi} < 2.5$ GeV/$c^2$, and simultaneously in 11 bins of the reduced four-momentum transfer squared, $0.1 < t' < 1.0$ $($GeV$/c)^2$, are subjected to a resonance-model fit using Breit-Wigner amplitudes to simultaneously describe a subset of 14 selected waves using 11 isovector light-meson states with $J^{PC} = 0^{-+}$, $1^{++}$, $2^{++}$, $2^{-+}$, $4^{++}$, and spin-exotic $1^{-+}$ quantum numbers. [...]
arXiv:1802.05913; CERN-EP-2018-021.- Geneva : CERN, 2018-11-02 - 72 p. - Published in : Phys. Rev. D 98 (2018) 092003 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: CERN-EP-2018-021 - PDF; 1802.05913 - PDF;
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2.
Measurements of $\phi_s$ at the LHCb experiment / Cowan, Greig A. (Edinburgh U.) /LHCb Collaboration
These proceedings present the current status of measurements of the CP-violating phase $phi_s$ by the LHCb collaboration, reviewing the measurements in channels such as $B_s^0\to J/\psi\phi$, $B_s^0\to J/\psi \pi^+\pi^-$ and $B_s^0 \to \psi(2S)\phi$. The observation of the $B_s^0\to\eta_c\phi$ decay mode is presented for the first time, which can be used to measure $\phi_s$ with larger data samples that will be collected over the coming years by the LHCb experiment. [...]
arXiv:1701.08580.- SISSA, 2017-01-30 - 7 p. - Published in : PoS CKM2016 (2017) 084 Fulltext: PDF; External link: PoS server
In : 9th International Workshop on the CKM Unitarity Triangle, Mumbai, India, 28 Nov - 2 Dec 2016, pp.084
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3.
New limits on heavy neutrinos from Kaon experiments at CERN / Massri, Karim (CERN)
The NA48/2 and NA62-$R_K$ experiments at CERN collected large samples of charged kaon decays in 2003--2004 and 2007, respectively. These samples, collected with different trigger conditions, allow to search for both short and long-living heavy neutrinos produced in $K^{\pm}\to\mu^{\pm}N_4$ decays. [...]
arXiv:1706.03553.- 2017 - 8 p. - Published in : Nuovo Cimento C 40 (2017) 170 Fulltext: PDF; Preprint: PDF;
In : 31st Rencontres de Physique de La Vallée d'Aoste, La Thuile, Vallée D'aoste, Ita, 5 - 11 Mar 2017, pp.170
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4.
Exclusive and semi-exclusive $\pi^{+}\pi^{-}$ production in proton-proton collisions at $\sqrt{s} = $ 7 TeV / CMS Collaboration
A measurement is presented of the exclusive and semi-exclusive production of charged pion pairs in proton-proton collisions, $\mathrm{ p p }\to\mathrm{ p }({\mathrm{p}^*} )+ \pi^{+}\pi^{-}+ \mathrm{ p } ({\mathrm{p}^*} )$, where the $\pi^{+} \pi^{-}$ pair is emitted at central rapidities, and the scattered protons stay intact ($\mathrm{p}$) or diffractively dissociate (${\mathrm{p}^*} $) without detection. [...]
arXiv:1706.08310 ; CMS-FSQ-12-004 ; CERN-EP-2016-261 ; CMS-FSQ-12-004-005. - 2017 - 34.
Figures, tables and other information - Full text - Fulltext
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5.
Searches for Light Exotics at LHCb / Redi, Federico (Imperial Coll., London) /LHCb Collaboration
We report on the latest direct searches for light exotics at LHCb, conducted during Run I of LHC. This proceedings are divided into two sections, the first part will cover the search for the lepton number violating decay ${B}\rightarrow {\pi^{+}\mu^{-}\mu^{-}}$ while the second part will cover the search for a low mass dark boson in the decay $B^0 \rightarrow K^{*0}\chi$, with $\chi \rightarrow \mu^+\mu^-$ and $K^{*0} \rightarrow K^+\pi^-$. [...]
arXiv:1703.01637.- 2016 - 8 p. - Published in : (2015) , pp. 115-120 Fulltext: PDF; Preprint: PDF;
In : 3rd Annual Large Hadron Collider Physics Conference, St. Petersburg, Russia, 31 Aug - 5 Sep 2015, pp.115-120
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6.
Recent results from NA48/2 and NA62 experiments at CERN / Lurkin, Nicolas (Birmingham U.)
The NA48/2 and $\text{NA62}\text{-}{\text{R}_\text{K}}$ experiments at the CERN SPS collected a large sample of charged kaon decays in flight. $\text{NA62}\text{-}{\text{R}_\text{K}}$ was running in 2007-08 with a highly efficient minimum bias trigger for decays into electrons. [...]
POS(HQL-2016)033; arXiv:1701.06979.- SISSA, 2016-11-23 - 11 p. - Published in : PoS HQL2016 (2017) 033 Fulltext: PDF; Preprint: PDF;
In : 13th International Conference on Heavy Quarks and Leptons, Blacksburg, Virginia, USA, 22 - 27 May 2016, pp.033
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7.
Measurement of the $C\!P$ violation parameter $A_\Gamma$ in $D^0 \to K^+K^-$ and $D^0 \to \pi^+\pi^-$ decays / LHCb Collaboration
Asymmetries in the time-dependent rates of $D^0 \to K^+K^-$ and $D^0 \to \pi^+\pi^-$ decays are measured in a $pp$ collision data sample collected with the LHCb detector during LHC Run 1, corresponding to an integrated luminosity of $3\,\mathrm{fb}^{-1}$. The asymmetries in effective decay widths between $D^0$ and $\overline{D}^0$ decays, sensitive to indirect $CP$ violation, are measured to be $A_\Gamma(K^+ K^-) = (-0.30 \pm 0.32 \pm 0.10)\times 10^{-3}$ and $A_\Gamma(\pi^+\pi^-) = (0.46 \pm 0.58 \pm 0.12)\times 10^{-3}$, where the first uncertainty is statistical and the second systematic. [...]
arXiv:1702.06490; LHCB-PAPER-2016-063; CERN-EP-2017-028.- Geneva : CERN, 2017-06-28 - 9 p. - Published in : Phys. Rev. Lett. 118 (2017) 261803 APS Open Access Article: PDF; Fulltext: arXiv:1702.06490 - PDF; 10.1103_PhysRevLett.118.261803 - PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Figures, tables and other information
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8.
Resonance Production and $\pi\pi$ S-wave in $\pi^- + p \rightarrow \pi^- \pi^- \pi^+ + p_{recoil}$ at 190 GeV/c / COMPASS collaboration
The COMPASS collaboration has collected the currently largest data set on diffractively produced $\pi^-\pi^-\pi^+$ final states using a negative pion beam of 190 GeV/c momentum impinging on a stationary proton target. This data set allows for a systematic partial-wave analysis in 100 bins of three-pion mass, $0.5 < m_{3\pi} < 2.5$ GeV/c$^2$ , and in 11 bins of the reduced four-momentum transfer squared, $0.1 < t < 1.0$ (GeV/c)$^2$ . [...]
arXiv:1509.00992; CERN-PH-EP-2015-233.- Geneva : CERN, 2017-02-16 - 59 p. - Published in : Phys. Rev. D 95 (2017) 032004 APS Open Access article: PDF; Draft (restricted): PDF; Fulltext: arXiv:1509.00992 - PDF; 10.1103_PhysRevD.95.032004 - PDF; External link: Preprint
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9.
Energy Deposition And Energy-deposition Fluctuations In An ionization spectrometer And A Total-absorption Nuclear-cascade Counter / Gabriel, T A ; Chandler, K C (Oak Ridge)
1973 - Published in : Part. Accel.: 5 (1973) , pp. 161-169 Fulltext: PDF;
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10.
Fluence and dosimetric measurements for a $\pi^{\pm}$ irradiation facility / Furetta, C ; Bates, S ; Glaser, M ; Lemeilleur, F ; Tavlet, Marc (CERN) ; León-Florián, E ; Leroy, C /RD2 Collaboration
CERN-ECP-95-02; CERN-ECP-95-002; CERN-ECP-95-2.- Geneva : CERN, 1995 - 8 p. Fulltext: PDF TIF; Source files restricted to CERN users: ZIP;
In : 4th International Conference on Advanced Technology and Particle Physics, Como, Italy, 3 - 7 Oct 1994, pp.503-509
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