Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Delaunay, Cedric"'
Autor:
Delaunay, Cédric, Karr, Jean-Philippe, Kitahara, Teppei, Koelemeij, Jeroen C. J., Soreq, Yotam, Zupan, Jure
Fundamental physical constants are determined from a collection of precision measurements of elementary particles, atoms and molecules. This is usually done under the assumption of the Standard Model~(SM) of particle physics. Allowing for light new p
Externí odkaz:
http://arxiv.org/abs/2210.10056
We show that muonium spectroscopy in the coming years can reach a precision high enough to determine the anomalous magnetic moment of the muon below one part per million (ppm). Such an independent determination of muon g-2, which is not limited by ha
Externí odkaz:
http://arxiv.org/abs/2106.11998
Autor:
Balkin, Reuven, Delaunay, Cedric, Geller, Michael, Kajomovitz, Enrique, Perez, Gilad, Shpilman, Yogev, Soreq, Yotam
Publikováno v:
Phys. Rev. D 104, 053009 (2021)
We discuss the recent results on the muon anomalous magnetic moment in the context of new physics models with light scalars. We propose a model in which the one-loop contributions to g-2 of a scalar and a pseudoscalar naturally cancel in the massless
Externí odkaz:
http://arxiv.org/abs/2104.08289
We consider models of decaying spin-1 dark matter whose dominant coupling to the standard model sector is through a dark-Higgs Yukawa portal connecting a TeV-scale vector-like lepton to the standard model (right-handed) electron. Below the electron-p
Externí odkaz:
http://arxiv.org/abs/2009.03060
Publikováno v:
Phys. Rev. Research 2, 043444 (2020)
Atomic spectral lines for different isotopes are shifted, revealing a change in the properties of the nucleus. For spinless nuclei such isotope shifts for two distinct transitions are expected to be linearly related, at least at leading order in a ch
Externí odkaz:
http://arxiv.org/abs/2005.06144
Publikováno v:
Phys. Rev. D 102, 035017 (2020)
We present a thorough analysis of the sequential freeze-in mechanism for dark matter production in the early universe. In this mechanism the dark matter relic density results from pair annihilation of mediator particles which are themselves produced
Externí odkaz:
http://arxiv.org/abs/2005.06294
Autor:
Delaunay, Cédric
In this paper, we implement the Russian standard block cipher Grasshopper on Field-Programmable Gate Array (FPGA). We also study the Correlation Power Analysis attack, which is a special type of side-channel attack proposed by Brier et al. To face th
Externí odkaz:
http://arxiv.org/abs/1904.05141
Probing new spin-independent interactions through precision spectroscopy in atoms with few electrons
Publikováno v:
Phys. Rev. D 96, 115002 (2017)
The very high precision of current measurements and theory predictions of spectral lines in few-electron atoms allows to efficiently probe the existence of exotic forces between electrons, neutrons and protons. We investigate the sensitivity to new s
Externí odkaz:
http://arxiv.org/abs/1709.02817
Autor:
Berengut, Julian C., Budker, Dmitry, Delaunay, Cedric, Flambaum, Victor V., Frugiuele, Claudia, Fuchs, Elina, Grojean, Christophe, Harnik, Roni, Ozeri, Roee, Perez, Gilad, Soreq, Yotam
Publikováno v:
Phys. Rev. Lett. 120, 091801 (2018)
In this Letter we explore the potential of probing new light force-carriers, with spin-independent couplings to the electron and the neutron, using precision isotope shift spectroscopy. We develop a formalism to interpret linear King plots as bounds
Externí odkaz:
http://arxiv.org/abs/1704.05068
Publikováno v:
JHEP 1611 (2016) 154
Heavy vector-like quarks coupled to a scalar $S$ will induce a coupling of this scalar to gluons and possibly (if electrically charged) photons. The decay of the heavy quark into $Sq$, with $q$ being a Standard Model quark, provides, if kinematically
Externí odkaz:
http://arxiv.org/abs/1606.09013