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# CERN Published Articles

Letzte Einträge:
2021-04-21
06:17
 Semileptonic $B$ decays at LHCb / Ferrari, F (Bologna U. ; INFN, Bologna) In the Standard Model of particle physics, the coupling of the gauge bosons to leptons is independent of their flavour. This property is called lepton flavour universality and it has been well tested. [...] 2020 - 6 p. - Published in : Nuovo Cimento C 43 (2020) 43 Fulltext: PDF; In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.43

2021-04-21
06:17
 Recent results on single vector boson plus jets production at CMS / Vazzoler, F (Trieste U. ; INFN, Trieste) The most recent results on the hadroproduction of an electroweak boson in association with one or more jets within the CMS experiment are presented. The cross section is studied differentially with respect to the transverse momentum and the angular correlation of the final state particles. Attention is given to the associated production of a vector boson plus flavour-tagged (b, c) jets. [...] 2020 - 7 p. - Published in : Nuovo Cimento C 43 (2020) 38 Fulltext: PDF; In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.38

2021-04-21
06:17
 First evidence of double-parton scattering in same-sign WW production at CMS / Mariani, V (INFN, Perugia) /CMS Collaboration The search for the same-sign WW production via double-parton scattering is presented, based on study of proton-proton collision data collected at $\sqrt{s}$ = 13TeV, using dimuon and electron-muon final states with the CMS experiment. First evidence for WW production via double-parton scattering, with a significance of 3.9 standard deviations, is presented. [...] 2020 - 7 p. - Published in : Nuovo Cimento C 43 (2020) 36 Fulltext: PDF; In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.36

2021-04-21
06:17
 Search for four-top-quark production in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at $\sqrt {s}$ = 13 TeV with the ATLAS detector / Magro, J (INFN, Udine ; Udine U.) Recent published results on a search for four-top-quark production, $t$$\bar{t}$t$t$t, are presented, based on a dataset collected at $\sqrt{s}$ = 13TeV with the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 36.1 fb$^{−1}$. The single-lepton and opposite-sign dilepton final states are analysed. [...] 2020 - 6 p. - Published in : Nuovo Cimento C 43 (2020) 35 Fulltext: PDF; In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.35

2021-04-21
06:17
 ATLAS searches for resonances decaying to boson pairs / Lavorgna, M (Naples U. ; INFN, Naples) Searches for heavy-mass resonances decaying into a couple of vectorial bosons, $WW$, $WZ$ or $ZZ$ using data from proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 13TeV at the Large Hadron Collider are presented. The searches are performed in the semileptonic and fully hadronic final states, in which one boson decays into leptons and the other one decays into hadrons, or both bosons decay hadronically. [...] 2020 - 6 p. - Published in : Nuovo Cimento C 43 (2020) 34 Fulltext: PDF; In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.34

2021-04-21
06:17
 Search for dark matter in events with missing transverse momentum and hadronic jets with the ATLAS experiment at the LHC and HL-LHC / Frattari, G (INFN, Rome ; Rome U.) Several cosmological observations hint at the existence of dark matter, whose particle nature is still unknown. The study of events with a highly energetic jet and large missing transverse momentum in proton-proton collisions at the Large Hadron Collider (LHC) plays an important role in the search for weakly interacting massive particles, which are natural dark matter candidates. [...] 2020 - 6 p. - Published in : Nuovo Cimento C 43 (2020) 32 Fulltext: PDF; In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.32

2021-04-21
06:17
 Projections for HH measurements in the bbZZ(4l) final state with the CMS experiment at the HL-LHC / Fontanesi, E (INFN, Bologna ; Bologna U.) /CMS Collaboration Prospects for the study of Higgs boson pair (HH) production in the HH → b$\bar{b}$4l (l = e, $\mu$) channel are studied in the context of the High-Luminosity LHC. The analysis is performed using a parametric simulation of the Phase-2 CMS detector response provided by the Delphes software and assuming an average of 200 proton-proton collisions per bunch crossing at a center-of-mass energy of 14TeV. [...] 2020 - 6 p. - Published in : Nuovo Cimento C 43 (2020) 31 Fulltext: PDF; In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.31

2021-04-21
06:17
 Single top quark measurements with the CMS experiment / De Iorio, A (INFN, Naples ; Naples U.) /CMS Collaboration Single top quarks are produced at the Large Hadron Collider in electroweak processes via charged current interaction. This channel is very sensible to new physics signals, like anomalous couplings or flavour changing neutral current, due to the presence of an electroweak vertex. [...] 2020 - 5 p. - Published in : Nuovo Cimento C 43 (2020) 30 Fulltext: PDF; In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.30

2021-04-21
06:17
 Impact of the PDFs on the $Z$ and $W$ lineshapes at LHC / Bertacchi, V (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Bianchini, L (INFN, Pisa) ; Manca, E (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; G Rolandi (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Roy Chowdhury, S (INFN, Pisa ; Pisa, Scuola Normale Superiore) The parton distribution functions (PDFs) of the proton play a role in determining the lineshape of $W$ and $Z$ bosons produced at the LHC. In particular, the mode of the distribution of the gauge boson virtuality gets shifted with respect to the boson mass due to the dependence of the partonic luminosity on the boson virtuality itself. [...] 2020 - 6 p. - Published in : Nuovo Cimento C 43 (2020) 28 Fulltext: PDF; In : 18th Incontri di Fisica delle Alte Energie, Naples, Italy, 8 - 10 April 2019, pp.28

2021-04-21
04:04
 The DAQ system of the 12,000 Channel CMS High Granularity Calorimeter Prototype / CMS HGCAL Collaboration The CMS experiment at the CERN LHC will be upgraded to accommodate the 5-fold increase in the instantaneous luminosity expected at the High-Luminosity LHC (HL-LHC). Concomitant with this increase will be an increase in the number of interactions in each bunch crossing and a significant increase in the total ionising dose and fluence. [...] arXiv:2012.03876.- 2021-04-15 - 20 p. - Published in : JINST 16 (2021) T04001 Fulltext: PDF;