# CERN Preprints

2015-07-27
17:25
 Measurement of the CP-violating weak phase $\mathrm{ \phi_s }$ and the decay width difference $\Delta \Gamma_{ \mathrm{s} }$ using the $\mathrm{B^0_s} \to \mathrm{J} / \psi \phi(1020)$ decay channel in pp collisions at $\sqrt{s} =$ 8 TeV The CP-violating weak phase $\mathrm{ \phi_s }$ of the $\mathrm{ B^0_s }$ meson and the decay width difference $\Delta \Gamma_{ \mathrm{s} }$ of the $\mathrm{ B^0_s }$ light and heavy mass eigenstates are measured with the CMS detector at the LHC using a data sample of $\mathrm{ B^0_s } \to \mathrm{J} / \psi \phi(1020) \to \mu^+ \mu^- \mathrm{ K^{+} K^{-} }$ decays. [...] CERN-PH-EP-2015-192 ; CMS-BPH-13-012-003. - 2015. Additional information for the analysis - CMS AuthorList - Fulltext

2015-07-27
17:10
 Spécification technique pour la fourniture de blocs et disques en alliage de cuivre CERN-SPS-Spec-80-193-ABT ; SPS-ABT-TA-RB-Spec-D5-193. - 1980. - 6 p. Full text

2015-07-27
16:02
 A precise measurement of the $B^0$ meson oscillation frequency / Vecchi, Stefania (Universita di Ferrara (IT)) /LHCb Collaboration The oscillation frequency of $B^0$ mesons is measured using semileptonic decays with a charged $D$ or $D^*$ meson in the final state, on a data sample collected by the LHCb detector corresponding to an integrated luminosity of 3 fb$^{-1}$ of $pp$ collisions. A combination of the two decay modes gives $\Delta m_d = (503.6 \pm 2.0 \pm 1.3)$ ns$^{-1}$ , where the first uncertainty is statistical and the second systematic [...] LHCb-CONF-2015-005; CERN-LHCb-CONF-2015-005.- Geneva : CERN, 2015 - 29. In : European Physical Society Conference on High Energy Physics 2015, Vienna, Austria, 22 - 29 Jul 2015

2015-07-27
14:52
 Interplay among transversity induced asymmetries in hadron leptoproduction / Adolph, C. ; Akhunzyanov, R. ; Alexeev, M.G. ; Alexeev, G.D. ; Amoroso, A. ; Andrieux, V. ; Anosov, V. ; Augustyniak, W. ; Austregesilo, A. ; Azevedo, C. et al. /COMPASS In the fragmentation of a transversely polarized quark several left-right asymmetries are possible for the hadrons in the jet. When only one unpolarized hadron is selected, it exhibits an azimuthal modulation known as Collins effect. [...] CERN-PH-EP-2015-199.- Geneva : CERN, 2015 - 11. Draft (restricted): PDF; Fulltext: PDF;

2015-07-27
07:26
 Large scale structure from viscous dark matter / Blas, Diego (CERN) ; Floerchinger, Stefan (CERN) ; Garny, Mathias (CERN) ; Tetradis, Nikolaos (CERN ; Athens U.) ; Wiedemann, Urs Achim (CERN) Cosmological perturbations of sufficiently long wavelength admit a fluid dynamic description. [...] arXiv:1507.06665 ; CERN-PH-TH-2015-172. - 2015. - 30 p. Preprint - Full text

2015-07-26
21:34
 Measurement of the underlying event activity using charged-particle jets in proton-proton collisions at $\sqrt{s}=$ 2.76 TeV A measurement of the underlying event (UE) activity in proton-proton collisions is performed using events with charged-particle jets produced in the central pseudorapidity region ($|{\eta^{\text{jet}}} |$ less than 2) and with transverse momentum $p_{\mathrm{T}}^\text{jet}$ between 1 and 100 GeV. [...] CERN-PH-EP-2015-176 ; CMS-FSQ-12-025-003. - 2015. Additional information for the analysis - CMS AuthorList - Fulltext

2015-07-25
22:45
 Search for pair-produced vector-like B quarks in proton-proton collisions at $\sqrt{s} =$ 8 TeV A search for the production of a heavy B quark, having electric charge ${-}1/3$ and vector couplings to W, Z, and H bosons, is carried out using proton-proton collision data recorded at the CERN LHC by the CMS experiment, corresponding to an integrated luminosity of 19.7 fb$^{-1}$. [...] CERN-PH-EP-2015-170 ; CMS-B2G-13-006-003. - 2015. Additional information for the analysis - CMS AuthorList - Fulltext

2015-07-24
20:56
 Study of the $B_c^+ \to J/\psi D_s^+$ and $B_c^+ \to J/\psi D_s^{*+}$ decays with the ATLAS detector The decays $B_c^+ \to J/\psi D_s^+$ and $B_c^+ \to J/\psi D_s^{*+}$ are studied with the ATLAS detector at the LHC using a dataset corresponding to integrated luminosities of 4.9 fb$^{-1}$ and 20.6 fb$^{-1}$ of $pp$ collisions collected at centre-of-mass energies $\sqrt{s} = 7$ TeV and 8 TeV, respectively. [...] CERN-PH-EP-2015-163. - 2015. Fulltext - Previous draft version

2015-07-24
16:32
 Temperature measurement on the recently installed TED-A in TT60 / Barisy, A ; Barisy, A ; Goujon, M ; Ijspeert, A ; Sievers, P ; Zihler, B CERN-SPS-Tech-Note-84-004-ABT ; SPS-ABT-AI-Tech-Note-84-04. - 1984. - 14 p. Full text

2015-07-24
15:58
 Description of IEP-punch logic with 8 hole perforation and computer on-line / Frederiksen, H ; Burkhard, J H CERN-TC-INSTR-66-7. - 1966. - 6 p. Full text