CERN Accelerating science

CERN Preprints

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2019-07-19
04:20
TMDs and Monte Carlo Event Generators / Hautmann, F. (Oxford U. ; Antwerp U. ; Basque U., Bilbao ; CERN)
We discuss prospects for Monte Carlo event generators incorporating the dynamics of transverse momentum dependent (TMD) parton distribution functions. [...]
arXiv:1907.03353.
- 8 p.
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2019-07-19
04:20
Quantum Fishchain in $AdS_5$ / Gromov, Nikolay (King's Coll. London, Dept. Math ; St. Petersburg, INP) ; Sever, Amit (Tel Aviv U. ; CERN)
In our previous paper we derived the holographic dual of the planar fishnet CFT in four dimensions. [...]
arXiv:1907.01001.
- 39 p.
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2019-07-18
20:45
Measurements of triple-differential cross sections for inclusive isolated-photon+jet events in pp collisions at $\sqrt{s} = $ 8 TeV
Measurements are presented of the triple-differential cross section for inclusive isolated-photon+jet events in pp collisions at $\sqrt{s} = $ 8 TeV as a function of photon transverse momentum (${p_{\mathrm{T}}^{\gamma}}$), photon pseudorapidity (${\eta^{\gamma}}$), and jet pseudorapidity (${\eta^{\text{jet}}}$). [...]
CERN-EP-2019-127 ; CMS-SMP-16-016-003.
- 2019.
Additional information for the analysis - CMS AuthorList - Fulltext

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2019-07-18
17:03
Precision measurement of the $\Lambda_c^+$, $\Xi_c^0$, and $\Xi_c^+$ baryon lifetimes / LHCb Collaboration
We report measurements of the lifetimes of the $\Lambda_c^+$, $\Xi_c^+$ and $\Xi_c^0$ charm baryons using proton-proton collision data at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3.0 fb$^{-1}$, collected by the LHCb experiment. [...]
arXiv:1906.08350 ; LHCb-PAPER-2019-008 ; CERN-EP-2019-122 ; LHCB-PAPER-2019-008.
- 2019. - 20 p, 20 p.
Fulltext - Related data file(s) - Supplementary information - Fulltext

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2019-07-18
14:55
The Upgrade of the CMS Inner Tracker for HL-LHC / Backhaus, Malte (Zurich, ETH) /CMS Collaboration
During the Long Shutdown (LS) from 2024 to 2026 the Large Hadron Collider (LHC) will be upgraded in order to provide a ten-fold increase of the data rate to the experiments. This will enhance the sensitivity of the experiments to possible unexplored rare processes and to allow for precision measurements of known processes, in particular of the properties of the Higgs Boson which was discovered in 2012. [...]
CMS-CR-2019-011.- Geneva : CERN, 2019 - 14 p. Fulltext: PDF;
In : International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2018), Taipei, Taiwan, 10 - 14 Dec 2018

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2019-07-18
05:08
Towards a determination of the low $x$ gluon via exclusive $J/\psi$ production / Flett, Chris A. ; Jones, Stephen P. ; Martin, Alan D. ; Ryskin, Misha G. ; Teubner, Thomas
We discuss how the stability of the theoretical prediction for exclusive $J/\psi$ photoproduction has been improved through a systematic taming of the known $\overline{\text{MS}}$ coefficient functions by accounting for a formally power suppressed, but numerically significant, correction encoded within a $Q_0$ cut. [...]
arXiv:1907.06471 ; CERN-TH-2019-107 ; IPPP/19/53 ; LTH 1209.
- 5 p.
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2019-07-18
05:08
Axion-electron decoupling in nucleophobic axion models / Björkeroth, Fredrik ; Di Luzio, Luca ; Mescia, Federico ; Nardi, Enrico ; Panci, Paolo ; Ziegler, Robert
The strongest upper bounds on the axion mass come from astrophysical observations like the neutrino burst duration of SN1987A, which depends on the axion couplings to nucleons, or the white-dwarf cooling rates and red-giant evolution, which involve the axion-electron coupling. [...]
arXiv:1907.06575 ; CERN-TH-2019-118.
- 5 p.
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2019-07-18
05:08
Double Higgs boson production at NLO: combining the exact numerical result and high-energy expansion / Davies, Joshua ; Heinrich, Gudrun ; Jones, Stephen P. ; Kerner, Matthias ; Mishima, Go ; Steinhauser, Matthias ; Wellmann, David
We consider the next-to-leading order QCD corrections to Higgs boson pair production, using our recent calculation of the form factors in the high-energy limit. [...]
arXiv:1907.06408 ; CERN-TH-2019-103 ; MPP-2019-128 ; P3H-19-015 ; TTP19-018 ; ZU-TH 34/19.
- 21 p.
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2019-07-18
05:08
Small-scale structure of primordial black hole dark matter and its implications for accretion / Hütsi, Gert ; Raidal, Martti ; Veermäe, Hardi
Primordial black hole (PBH) dark matter (DM) non-linear small-scale structure formation begins before the epoch of recombination due to large Poisson density fluctuations. [...]
arXiv:1907.06533 ; CERN-TH-2019-112.
- 9 p.
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2019-07-18
05:08
Probing the strange content of the proton with charm production in charged current at LHeC / xFitter Developers' Team Collaboration
We study charm production in charged-current deep-inelastic scattering (DIS) using the xFitter framework. [...]
arXiv:1907.01014 ; DESY Report 19-107.
- 19 p.
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