CERN Accelerating science

CERN Preprints

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2018-01-16
11:31
Limits on top FCNC decay t$\rightarrow$cH and t$\rightarrow$c$\gamma$ from CLIC at 380 GeV / Zarnecki, Aleksander (University of Warsaw (PL)) ; Van Der Kolk, Naomi (Nikhef National institute for subatomic physics (NL))
FCNC top decays are very strongly suppressed in the Standard Model and the observation of any such decay would be a direct signature of physics beyond SM. Many "new physics" scenarios predict contributions to FCNC processes and the largest enhancement in many models is for t$\rightarrow$cH decay. [...]
CLICdp-Conf-2018-001.- Geneva : CERN, 2018 - 9. Fulltext: PDF;
In : 2017 International Workshop on Future Linear Colliders, Strasbourg, France, 23 - 27 Oct 2017

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2018-01-16
11:03
Searches for vector-like quarks and resonances decaying to top quarks with the ATLAS and CMS detectors / Van Onsem, Gerrit Patrick (DESY) /ATLAS and CMS Collaborations
Many models beyond the standard model predict the existence of vector-like quarks or other types of heavy resonances. Using proton-proton collision data at center-of-mass energies of 8 and 13 TeV, the ATLAS and CMS Collaborations have performed a multitude of searches for pair and singly produced vector-like quarks decaying to W, Z, or Higgs bosons. [...]
CMS-CR-2017-384.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF;
In : 10th International Workshop on Top Quark Physics, Braga, Portugal, 17 - 22 Sep 2017

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2018-01-16
11:02
Measurement of normalized differential $t\bar{t}$ cross sections in the dilepton channel from pp collisions at 13 TeV / Roh, Youn (Korea U.) /CMS Collaboration
Measurements of normalized differential cross sections for top quark pair production are performed in the dilepton decay channels in proton-proton collisions at a center-of-mass energy of 13~TeV. The differential cross sections are measured with data corresponding to an integrated luminosity of 2.1~fb$^{-1}$ recorded by the CMS experiment at the LHC. [...]
CMS-CR-2017-435.- Geneva : CERN, 2017 - 6 p. Fulltext: PDF;
In : 10th International Workshop on Top Quark Physics, Braga, Portugal, 17 - 22 Sep 2017

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2018-01-16
11:02
Measurements of differential $t\bar t$ cross sections at CMS / Hindrichs, Otto Heinz (Rochester U.) /CMS Collaboration
An overview of recent measurements of differential top quark pair production cross sections performed by the CMS experiment at the LHC is presented. Measurements at different proton-proton center-of-mass energies are available using the dilepton, lepton+jets, and all-jets decay channels of the top quark. [...]
CMS-CR-2017-439.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF;
In : 10th International Workshop on Top Quark Physics, Braga, Portugal, 17 - 22 Sep 2017

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2018-01-16
07:49
Multi Quark Production in p+A collisions: Quantum Interference Effects / Kovner, Alex ; Rezaeian, Amir H.
We consider forward inclusive production of several quarks in the high energy p-A collisions in the CGC formalism. [...]
arXiv:1801.04875 ; CERN-TH-2018-007.
- 20 p.

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2018-01-16
07:49
Observation of medium induced modifications of jet fragmentation in PbPb collisions using isolated-photon-tagged jets / CMS Collaboration
Measurements of fragmentation functions for jets associated with an isolated photon are presented for the first time in pp and PbPb collisions. [...]
arXiv:1801.04895 ; CMS-HIN-16-014 ; CERN-EP-2017-337.
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2018-01-16
07:49
Serendipity in dark photon searches / Ilten, Philip ; Soreq, Yotam ; Williams, Mike ; Xue, Wei
Searches for dark photons provide serendipitous discovery potential for other types of vector particles. [...]
arXiv:1801.04847 ; MIT-CTP-4976 ; CERN-TH-2017-282.
- 31 p.

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2018-01-16
07:49
The Top Quark Mass at the LHC / Nason, Paolo
I briefly discuss some theoretical aspects of top mass measurements at the LHC. [...]
arXiv:1801.04826 ; CERN-TH-2018-008.
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2018-01-16
07:49
Arhuaco: Deep Learning and Isolation Based Security for Distributed High-Throughput Computing / Gomez Ramirez, A. ; Lara, C. ; Betev, L. ; Bilanovic, D. ; Kebschull, U.
Grid computing systems require innovative methods and tools to identify cybersecurity incidents and perform autonomous actions i.e. [...]
arXiv:1801.04179.
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Preprint

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2018-01-16
07:49
Status of MERLIN / Rafique, H. (Huddersfield U. ; Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Appleby, R.B. (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Barlow, R.J. (Huddersfield U.) ; Molson, J.G. (Orsay, LAL) ; Tygier, S. (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Valloni, A. (Manchester U. ; CERN)
MERLIN is an accelerator physics library written in C++ which can be used for a range of accelerator tracking simulations, including collimation in hadron colliders. [...]
arXiv:1712.06991.
- 17 p.
Preprint

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