CERN Accelerating science

CERN Preprints

უკანასკნელი დამატებები:
2018-05-22
15:04
Update of the LHCb combination of the CKM angle $\gamma$ / Kenzie, Matthew William (University of Cambridge (GB)) ; Whitehead, Mark Peter (Rheinisch Westfaelische Tech. Hoch. (DE)) /LHCb Collaboration
A combination of tree-level measurements of the CKM angle $\gamma$ at LHCb is performed. The results are obtained from time-integrated measurements of $B^{+}\to D K^{+}$, $B^{+}\to D^{*}K^{+}$, $B^{+}\to DK^{*+}$, $B^{0}\to D K^{*0}$, $B^{0}\to D K^{+}\pi^{-}$ and $B^{+}\to DK^{+}\pi^{+}\pi^{-}$ decays and time-dependent analyses of $B_{s}^{0}\to D_{s}^{\mp}K^{\pm}$ and $B^{0}\to D^{\mp}\pi^{\pm}$ decays. [...]
LHCb-CONF-2018-002; CERN-LHCb-CONF-2018-002.- Geneva : CERN, 2018 - 29. Fulltext: LHCb-CONF-2018-002-figures - ZIP; LHCb-CONF-2018-002 - PDF;
In : The 17th International Conference on B-Physics at Frontier Machines, Isola D'elba, Italy, 6 - 11 May 2018

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2018-05-22
14:57
Search for heavy neutral leptons, right-handed neutrinos and long-lived particles with the CMS detector / Negro, Giulia (IRFU, Saclay) /CMS Collaboration
A selection of recent CMS results on heavy neutral leptons, right-handed neutrinos and long-lived particles is reported. The search for heavy neutral leptons in the trilepton channel and in the same-sign dilepton channel, the search of a $W_R$ decaying into two leptons and two jets through a right-handed neutrino, and the searches on stopped long-lived particles and disappearing tracks are presented..
CMS-CR-2018-051.- Geneva : CERN, 2018 - 7 p. Fulltext: PDF;
In : 53rd Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 10 - 17 Mar 2018

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2018-05-22
14:57
Search for leptoquarks in CMS / Takahashi, Yuta (Zurich U.) /CMS Collaboration
Leptoquarks (LQs) are hypothetical bosons, each coupling to a lepton and a quark of a given generation. They recently got particular attention, as the ``TeV-scale LQ'' might explain observed anomalies reported by dedicated B physics experiments. [...]
CMS-CR-2018-049.- Geneva : CERN, 2018 - 7 p. Fulltext: PDF;
In : 53rd Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 10 - 17 Mar 2018

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2018-05-22
14:57
Search for Dark Matter in final states with top quarks in CMS data / Kevin Kai Hong Sung /CMS Collaboration
Searches for dark matter (DM) produced in association with a single top quark or a top quark pair in proton-proton collisions at $\sqrt{s}$ = 13 TeV are presented. The data corresponds to an integrated luminosity of $35.9~\mathrm{fb}^{-1}$ recorded by the CMS detector at the CERN LHC in 2016. [...]
CMS-CR-2018-047.- Geneva : CERN, 2018 - 7 p. Fulltext: PDF;
In : 53rd Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 10 - 17 Mar 2018

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2018-05-22
14:50
SUSY searches in the context of R-parity violation with CMS data / Seitz, Claudia (Zurich U.) /CMS Collaboration
Several searches for supersymmetric particles are presented using data collected by the CMS experiment during Run 2 of the LHC. With rather stringent limits placed on R-parity conserving models, we explore three different scenarios where R-parity is not conserved. In these cases the lightest supersymmetric particle is not required to be stable, and can decay exclusively into known standard model particles. Different coupling scenarios and coupling strengths are possible, however, the focus here lies on prompt hadronic R-parity violating decays..
CMS-CR-2018-035.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF;
In : 53rd Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 10 - 17 Mar 2018

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2018-05-22
10:30
Search for exotic Higgs boson decays to pairs of light pseudoscalars with the CMS detector / Caillol, Cecile (Wisconsin U., Madison) /CMS Collaboration
Searches for exotic Higgs boson decays to pairs of light pseudoscalars are performed using the data collected by the CMS experiment at center-of-mass energies of 8 and 13 TeV. The results are interpreted in different scenarios of two Higgs doublet models extended by a scalar singlet. [...]
CMS-CR-2018-030.- Geneva : CERN, 2018 - 7 p. Fulltext: PDF;
In : 53rd Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 10 - 17 Mar 2018

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2018-05-22
10:24
CMS Higgs boson results / Bluj, Michal Jacek (NCBJ, Swierk) /CMS Collaboration
In this report we review recent Higgs boson results obtained with pp collisions at $\sqrt{s}=\,$13 TeV recorded by the CMS detector in 2016 for an integrated luminosity of 35.9fb$^{\text{-1}}$. The 2016 data allowed the observation of the $H \to \tau\tau$ and $H \to WW$ decays with high significance. [...]
CMS-CR-2018-045.- Geneva : CERN, 2018 - 5 p. Fulltext: PDF;
In : 53rd Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 17 - 24 Mar 2018

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2018-05-22
07:18
Blue and violet graviton spectra from a dynamical refractive index / Giovannini, Massimo
We show that the spectral energy distribution of relic gravitons mildly increases for frequencies smaller than the $\mu$Hz and then flattens out whenever the refractive index of the tensor modes is dynamical during a quasi-de Sitter stage of expansion. [...]
CERN-TH-2018-106 ; arXiv:1805.08142.
- 10 p.
Fulltext

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2018-05-22
07:18
Mass-improvement of the vector current in three-flavor QCD / Fritzsch, Patrick
We determine two improvement coefficients which are relevant to cancel mass-dependent cutoff effects in correlation functions with operator insertions of the non-singlet local QCD vector current. [...]
CERN-TH-2018-119 ; arXiv:1805.07401 ; CERN-TH-2018-119.
- 15 p.
Fulltext

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2018-05-21
07:43
A Realistic $U(2)$ Model of Flavor / Linster, Matthias ; Ziegler, Robert
We propose a simple $U(2)$ model of flavor compatible with an $SU(5)$ GUT structure. [...]
CERN-TH-2018-121 ; TTP18-019 ; CERN-TH-2018-121 ; TTP18-019 ; arXiv:1805.07341.
- 30 p.
Full text

დეტალური ჩანაწერი - მსგავსი ჩანაწერები