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The Preprints collection aims to cover as far as possible all the grey literature in particle physics and its related technologies. The collection contains something like 400,000 documents, out of which about 50% can be accessed electronically. The documents originate from a variety of institutes all over the world. The collection, currently available, starts in 1979 and it has a full coverage of the arXiv.org e-Print archive since its beginning in 1991.
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2019-10-22
16:33
Measurement of $f_s / f_u$ variation with proton-proton collision energy and kinematics
The ratio of the $B^0_s$ and $B^+$ fragmentation fractions $f_s$ and $f_u$ is studied with $B^0_s \to J/\psi \phi$ and $B^+ \to J/\psi K^+$ decays using data collected by the LHCb experiment in proton-proton collisions at 7, 8 and 13 TeV center-of-mass energies [...]
CERN-EP-2019-209 ; LHCB-PAPER-2019-020. - 2019.
Fulltext - Previous draft version - Related data file(s)

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2019-10-22
10:33
Search for standard model production of four top quarks / Fangmeier, Caleb Arthur (Nebraska U.) /CMS Collaboration
This talk describes efforts towards a first measurement of the standard model production of four top quarks with results based on up to the full Run 2 dataset. It includes implications of this measurement to constrain properties of the Higgs Boson and new physics scenarios including dark matter..
CMS-CR-2019-170.- Geneva : CERN, 2019 - 6 p. Fulltext: PDF;
In : 2019 Meeting of the Division of Particles & Fields of the American Physical Society, Boston, United States Of America, 29 Jul - 2 Aug 2019

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2019-10-22
04:09
Quantized Coulomb Branches, Monopole Bubbling and Wall-Crossing Phenomena in 3d $\mathcal{N}=4$ Theories / Assel, Benjamin (CERN) ; Cremonesi, Stefano (Durham U., Dept. of Math.) ; Renwick, Matthew (Durham U., Dept. of Math.)
To study the quantized Coulomb branch of 3d $\mathcal{N}=4$ unitary SQCD theories, we propose a new method to compute correlators of monopole and Casimir operators that are inserted in the $\mathbb{R}\times\mathbb{R}^2_\epsilon$ Omega background. [...]
arXiv:1910.01650. - 73 p.
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2019-10-22
04:09
Emergent Strings from Infinite Distance Limits / Lee, Seung-Joo (CERN) ; Lerche, Wolfgang (CERN) ; Weigand, Timo (CERN ; U. Mainz, PRISMA)
As a refinement of the Swampland Distance Conjecture, we propose that a quantum gravitational theory in an infinite distance limit of its moduli space either decompactifies, or reduces to an asymptotically tensionless, weakly coupled string theory. [...]
arXiv:1910.01135 ; CERN-TH-2019-159. - 96 p.
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2019-10-21
18:55
Evidence for electroweak production of two jets in association with a $Z\gamma$ pair in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
Evidence for electroweak production of two jets in association with a $Z\gamma$ pair in $\sqrt{s} = 13$ TeV proton-proton collisions at the Large Hadron Collider is presented. [...]
CERN-EP-2019-206. - 2019.
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2019-10-21
15:32
The Hardware of the Video Observation System / Heinze, W
CERN-PS-CO-Note-2002-011-Tech. - 2002. - 8 p.
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2019-10-20
11:00
Bose-Einstein correlations of charged hadrons in proton-proton collisions at $\sqrt{s} = $ 13 TeV
Bose-Einstein correlations of charged hadrons are measured over a broad multiplicity range, from a few particles up to about 250 reconstructed charged hadrons in proton-proton collisions at $\sqrt{s} = $ 13 TeV. [...]
CERN-EP-2019-151 ; CMS-FSQ-15-009-003. - 2019.
Additional information for the analysis - CMS AuthorList - Fulltext

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2019-10-19
22:35
Measurement of the $t\bar{t}$ production cross-section and lepton differential distributions in $e\mu$ dilepton events from $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
The inclusive top quark pair ($t\bar{t}$) production cross-section $\sigma_{t\bar{t}}$ has been measured in proton-proton collisions at $\sqrt{s}=13$ TeV, using $36.1$ fb$^{-1}$ of data collected in 2015-16 by the ATLAS experiment at the LHC. [...]
CERN-EP-2019-203. - 2019.
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2019-10-19
20:21
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at ${\sqrt {\smash [b]{s_{_{\mathrm {NN}}}}}} = $ 2.76 and 5.02 TeV
Anisotropies in the initial energy density distribution of the quark-gluon plasma created in high energy heavy ion collisions lead to anisotropies in the azimuthal distributions of the final-state particles known as collective flow. [...]
CERN-EP-2019-211 ; CMS-HIN-17-005-003. - 2019.
Additional information for the analysis - CMS AuthorList - Fulltext

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2019-10-18
18:01
Search for new resonances in mass distributions of jet pairs using 139 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for new resonances decaying into a pair of jets is reported using the dataset of proton-proton collisions recorded at $\sqrt{s}=13$ TeV with the ATLAS detector at the Large Hadron Collider between 2015 and 2018, corresponding to an integrated luminosity of 139 fb$^{-1}$. [...]
arXiv:1910.08447 ; CERN-EP-2019-162. - 2019. - 39 p, 39 p.
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