CERN Accelerating science

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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

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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

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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

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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;

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2015-07-27
07:28
Time-resolved spectroscopy at surfaces and adsorbate dynamics: insights from a model-system approach / Boström, Emil ; Mikkelsen, Anders ; Verdozzi, Claudio
We introduce a finite-system, model description of the initial stages of femtosecond laser induced desorption at surfaces. [...]
arXiv:1507.06975.
- 2015.
Preprint

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2015-07-27
07:28
Why the laser linewidth is so narrow: A modern perspective / Cerjan, Alexander ; Stone, A Douglas
We review and interpret a modern approach to laser theory, steady-state ab initio laser theory (SALT), which treats lasing and amplification in a unified manner as a non-unitary scattering problem described by a non-linear scattering matrix. [...]
arXiv:1507.06973.
- 2015. - 17 p.
Preprint

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2015-07-27
07:28
Measurements of the Rate Capability of Various Resistive Plate Chambers / Affatigato, M ; Akgun, U ; Bilki, B ; Corriveau, F ; Freund, B ; Johnson, N ; Neubueser, C ; Onel, Y ; Repond, J ; Xia, L
Resistive Plate Chambers (RPCs) exhibit a significant loss of efficiency for the detection of particles, when subjected to high particle fluxes [...]
arXiv:1507.06968.
- 2015.
Preprint

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2015-07-27
07:28
Classical thermodynamics from quasi-probabilities / Pennini, F ; Plastino, A ; Rocca, M C
The basic idea of a microscopic understanding of Thermodynamics is to derive its main features from a microscopic probability distribution. [...]
arXiv:1507.06960.
- 2015. - 9 p.
Preprint

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2015-07-27
07:28
Addendum to "Vector-based model of elastic bonds for simulation of granular solids" / Kuzkin, Vitaly A
In our previous work [Phys. [...]
arXiv:1507.06957.
- 2015. - 4 p.
Preprint

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2015-07-27
07:28
Detecting changes in maps of gamma spectra with Kolmogorov-Smirnov tests / Reinhart, Alex ; Ventura, Valérie ; Athey, Alex
Various security, regulatory, and consequence management agencies are interested in continuously monitoring wide areas for unexpected changes in radioactivity. [...]
arXiv:1507.06954.
- 2015. - 8 p.
Preprint

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