CERN Preprints

2018-12-09
04:45
 A General Classification of Starobinsky-like Inflationary Avatars of SU(2,1)/SU(2) x U(1) No-Scale Supergravity / Ellis, John ; Nanopoulos, Dimitri V. ; Olive, Keith A. ; Verner, Sarunas Measurements of the cosmic microwave background (CMB) favour models of inflation with a small tensor-to-scalar ratio r, as predicted by the Starobinsky R + R^2 model. [...] arXiv:1812.02192 ; KCL-PH-TH/2018-69 ; CERN-TH-2018-260 ; ACT-04-18 ; MI-TH-1813, UMN-TH-3806/18 ; FTPI-MINN-18/21. - 21 p. Fulltext

2018-12-09
04:45
 Formation and Evolution of Primordial Black Hole Binaries in the Early Universe / Raidal, Martti ; Spethmann, Christian ; Vaskonen, Ville ; Veermäe, Hardi The abundance of primordial black holes (PBHs) in the mass range $0.1 - 10^3 M_\odot$ can potentially be tested by gravitational wave observations due to the large merger rate of PBH binaries formed in the early universe. [...] arXiv:1812.01930 ; KCL-PH-TH/2018-70 ; CERN-TH-2018-266. - 32 p. Fulltext

2018-12-09
04:45
 Fermion-boson symmetry and quantum field theory / Wu, Sau Lan ; Wu, Tai Tsun ; Zhou, Chen The application of fermion-boson symmetry to the standard model leads to the following: first, there are three generations of scalar quarks and scalar leptons in addition to the known quarks and leptons, and, secondly, the divergences in the perturbation series for the standard model are reduced. [...] arXiv:1812.01988 ; CERN-TH-2017-046. - Fulltext

2018-12-09
04:45
 The CLIC Potential for New Physics / de Blas, J. ; Franceschini, R. ; Riva, F. ; Roloff, P. ; Schnoor, U. ; Spannowsky, M. ; Wells, J.D. ; Wulzer, A. ; Zupan, J. ; Alipour-Fard, S. et al. The Compact Linear Collider (CLIC) is a mature option for the future of high energy physics. [...] arXiv:1812.02093 ; CERN-TH-2018-267. - 270 p. Fulltext

2018-12-09
04:45
 Search for pair-production of vector-like quarks in final states with at least one $Z$ boson decaying into a pair of electrons or muons in $pp$ collision data collected with the ATLAS detector at $\sqrt{s}$ = 13 TeV / Vale, Tiago A search for pair-produced vector-like quarks decaying into a $Z$ boson and a third generation quark using 2015 and 2016 $pp$ collision data at $\sqrt{s}~=~13~$TeV collected by the ATLAS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of $36.1~$fb$^{-1}$, is presented. [...] arXiv:1812.02112. - 5 p. Fulltext

2018-12-09
04:45
 Measurement of inclusive very forward jet cross sections in proton-lead collisions at $\sqrt{s_\mathrm{NN}}=$ 5.02 TeV / CMS Collaboration Measurements of differential cross sections for inclusive very forward jet production in proton-lead collisions as a function of jet energy are presented. [...] arXiv:1812.01691 ; CMS-FSQ-17-001 ; CERN-EP-2018-325. - Fulltext

2018-12-09
04:45
 Topological susceptibility at $T>T_{\rm c}$ from master-field simulations of the SU(3) gauge theory / Giusti, Leonardo ; Lüscher, Martin The topological susceptibility is computed in the SU(3) gauge theory at temperatures $T$ above the critical temperature $T_{\rm c}$ using master-field simulations of very large lattices, where the infamous topology-freezing issue is effectively bypassed. [...] arXiv:1812.02062 ; CERN-TH-2018-259. - 19 p. Fulltext

2018-12-09
04:45
 Search for flavour-changing neutral currents $tZ$ interactions in $pp$ collisions at $\sqrt{s}$=13 TeV with ATLAS / Peixoto, Ana A search for flavour-changing neutral currents (FCNC) processes in proton-proton ($pp$) collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider (LHC) is presented. [...] arXiv:1812.01363. - 5 p. Fulltext

2018-12-07
16:07
 Operational experience with the new CMS DAQ expert / Sakulin, Hannes (CERN) /CMS Collaboration The data acquisition (DAQ) system of the Compact Muon Solenoid (CMS) at CERN reads out the detector at the level-1 trigger accept rate of 100 kHz, assembles events with a bandwidth of 200 GB/s, provides these events to the high level-trigger running on a farm of about 30k cores and records the accepted events. Comprising custom-built and cutting edge commercial hardware and several 1000 instances of software applications, the DAQ system is complex in itself and failures cannot be completely excluded. [...] CMS-CR-2018-406.- Geneva : CERN, 2018 - 9 p. Fulltext: PDF; In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018

2018-12-07
16:07
 Experience with dynamic resource provisioning of the CMS online cluster using a cloud overlay / Da Silva Gomes, Diego (CERN) /CMS Collaboration The primary goal of the online cluster of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) is to build event data from the detector and to select interesting collisions in the High Level Trigger (HLT) farm for offline storage. With more than 1500 nodes and a capacity of about 850 kHEPSpec06, the HLT machines represent similar computing capacity of all the CMS Tier1 Grid sites together. [...] CMS-CR-2018-398.- Geneva : CERN, 2018 - 9 p. Fulltext: PDF; In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018