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2020-01-19
21:52
Measurement of the associated production of a Z boson with charm or bottom quark jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV
Ratios of cross sections, $\sigma(\mathrm{Z+c\ \text{jets}})/\sigma(\mathrm{Z+ \text{jets}})$, $\sigma(\mathrm{Z+b\ \text{jets}})/\sigma(\mathrm{Z+ \text{jets}})$, and $\sigma(\mathrm{Z+c\ \text{jets}})/\sigma(\mathrm{Z+b\ \text{jets}})$ in the associated production of a Z boson with at least one charm or bottom quark jet are measured in proton-proton collisions at $\sqrt{s}=$ 13 TeV. [...]
CERN-EP-2019-262 ; CMS-SMP-19-004-003. - 2020.
Additional information for the analysis - CMS AuthorList - Fulltext

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2020-01-19
10:29
Measurements of dose-rate effects in the radiation damage of plastic scintillator tiles using silicon photomultipliers
Measurements are presented of the reduction of signal output due to radiation damage for plastic scintillator tiles used in the hadron endcap (HE) calorimeter of the CMS detector. [...]
CERN-EP-2019-266 ; CMS-PRF-18-003-003. - 2020.
Additional information for the analysis - CMS AuthorList - Fulltext

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2020-01-19
10:22
Study of excited $\Lambda_{\mathrm{b}}^{0}$ states decaying to $\Lambda_{\mathrm{b}}^{0}\pi^{+}\pi^{-}$ in proton-proton collisions at $\sqrt{s} = $ 13 TeV
A study of excited $\Lambda_{\mathrm{b}}^{0}$ baryons is reported, based on a data sample collected in 2016-2018 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of up to 140 fb$^{-1}$. [...]
CERN-EP-2019-288 ; CMS-BPH-19-003-003. - 2020.
Additional information for the analysis - CMS AuthorList - Fulltext

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2020-01-19
05:01
D-meson production in Pb-Pb collisions with ALICE at the LHC / Trogolo, Stefano
Heavy quarks, like charm and beauty, are sensitive probes to investigate the colour-deconfined medium created in high-energy heavy-ion collisions, the Quark-Gluon Plasma (QGP). [...]
arXiv:2001.05949. - 4 p.
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2020-01-19
05:01
Learning Multivariate New Physics / D'Agnolo, Raffaele Tito (IPhT, Saclay) ; Grosso, Gaia (Catania U. ; INFN, Catania ; CERN) ; Pierini, Maurizio (CERN) ; Wulzer, Andrea (Catania U. ; INFN, Catania ; CERN ; EPFL, Lausanne, LPTP) ; Zanetti, Marco (Catania U. ; INFN, Catania)
We discuss a method that employs a multilayer perceptron to detect deviations from a reference model in large multivariate datasets. [...]
arXiv:1912.12155. - 28 p.
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2020-01-19
05:01
Circular and Linear ${\rm e^+ e^-}$ Colliders: Another Story of Complementarity / Blondel, Alain (Paris U., VI-VII) ; Janot, Patrick (CERN)
The remarkable synergy and complementarity between the circular ${\rm e^+ e^-}$ and pp colliders has been extensively discussed. [...]
arXiv:1912.11871. - 22 p.
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2020-01-19
05:01
Strong coupling $\alpha_s(m_Z)$ extraction from a combined NNLO analysis of inclusive electroweak boson cross sections at hadron colliders / d'Enterria, David (CERN) ; Poldaru, Andres (CERN ; LMU Munich (main))
The inclusive cross sections of W$^+$, W$^-$, and Z boson production from 34 different measurements performed in proton-(anti)proton collisions at center-of-mass energies $\sqrt{s}$ = 1.8--13 TeV, are compared to perturbative QCD calculations at next-to-next-to-leading-order (NNLO) accuracy with four sets of parton distributions functions (CT14, HERAPDF2.0, MMHT14, and NNPDF3.0 PDFs) and varying values of the strong coupling constant at the Z mass pole, $\alpha_s(m_Z)$. [...]
arXiv:1912.11733. - 32 p.
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2020-01-18
06:06
Built-in self test of high speed analog-to-digital converters / Santin, Edinei (CERN) ; Oliveira, Luis B (Nova U., Lisboa) ; Goes, Joao (Nova U., Lisboa)
Signals found in nature need to be converted to the digital domain through analog-to-digital converters (ADCs) to be processed by digital means [1]. [...]
2019. - 7 p.

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2020-01-17
18:07
The Tracker End-cap Pixel detector for CMS Phase-2 upgrade / Del Burgo, Riccardo (Zurich U.) /CMS Collaboration
After the high-luminosity upgrade of the LHC (HL-LHC), the instantaneous luminosity will increase to unprecedented values of $5-7 \times10^{34}\,\mathrm{cm^{-2}s^{-1}}$. In order to cope with these conditions the whole CMS silicon tracker detector will be replaced. [...]
CMS-CR-2019-146.- Geneva : CERN, 2019 - 7 p. Fulltext: PDF;

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2020-01-17
06:03
Tests of Lepton Flavour Universality and Related Anomalies at LHCb / Plana, Beatriz García (Unlisted)
Lepton flavour universality tests are powerful probes of the Standard Model and, in turn, of New Physics effects. [...]
WSP, 2019. - 15 p.
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