# CERN Preprints

Derniers ajouts:
2015-07-29
17:17
 Radiation levels at CERN's injectors and their impact on electronic equipment / De Carvalho Saraiva, Joao Pedro (CERN) ; Brugger, Markus (CERN) Electronic devices operating in hostile radiation environments, such as those found close to high-energy particle accelerators, can suffer from different types of radiation induced failures. [...] CERN-ACC-POSTER-2015-0001. - 2013. - 5 p.

2015-07-29
16:53
 Angular analysis of the decay $\mathrm{ B^0 \to K^{*0} \mu^{+} \mu^{-} }$ from pp collisions at $\sqrt{s}=$ 8 TeV The angular distributions and the differential branching fraction of the decay $\mathrm{ B^0 \to K^{*}(892)^0 \mu^{+} \mu^{-} }$ are studied using data corresponding to an integrated luminosity of 20.5 fb$^{-1}$ collected with the CMS detector at the LHC in pp collisions at $\sqrt{s} =$ 8 TeV. [...] CERN-PH-EP-2015-178 ; CMS-BPH-13-010-003. - 2015. Additional information for the analysis - CMS AuthorList - Fulltext

2015-07-29
16:44
 Measurement of the branching ratio $\Gamma(\Lambda_b^0 \rightarrow \psi(2S)\Lambda^0)/\Gamma(\Lambda_b^0 \rightarrow J/\psi\Lambda^0)$ with the ATLAS detector An observation of the $\Lambda_b^0 \rightarrow \psi(2S) \Lambda^0$ decay and a comparison of its branching fraction with that of the $\Lambda_b^0 \rightarrow J/\psi \Lambda^0$ decay has been made with the ATLAS detector in proton--proton collisions at $\sqrt{s}=8\,$TeV at the LHC using an integrated luminosity of $20.6\,$fb$^{-1}$. [...] CERN-PH-EP-2015-164. - 2015. Fulltext - Previous draft version

2015-07-28
11:33
 Regge pole versus low energy resonances / Schmid, C (CERN) 1969.

2015-07-28
11:24
 Lepton Flavour Violating top decays at the LHC / Davidson, Sacha ; Mangano, Michelangelo L ; Perries, Stephane ; Sordini, Viola We consider lepton flavour violating decays of the top quark, mediated by four-fermion operators. [...] arXiv:1507.07163 ; CERN-PH-TH-2015-145. - 2015. - 10 p. Preprint - Full text

2015-07-28
11:21
 Heavy Vector Partners of the Light Composite Higgs / Lane, Kenneth ; Prichett, Lukas If the Higgs boson $H(125)$ is a composite due to new strong interactions at high energy, it has spin-one partners, $\rho_H$ and $a_H$, analogous to the $\rho$ and $a_1$ mesons of QCD. [...] arXiv:1507.07102 ; CERN-PH-TH-2015-175 ; LAPTH-042-15. - 2015. - 10 p. Preprint - Full text

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 / CMS Collaboration 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 ; arXiv:1507.07527. - 2015. Additional information for the analysis - CMS AuthorList - Full text - Full text

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;