CERN Accelerating science

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Najnovije dodano:
2014-04-15
04:25
Complete Higgs Sector Constraints on Dimension-6 Operators / Ellis, John ; Sanz, Veronica ; You, Tevong
Constraints on the full set of Standard Model dimension-6 operators have previously used triple-gauge couplings to complement the constraints obtainable from Higgs signal strengths. [...]
arXiv:1404.3667 ; KCL-PH-TH-2014-15 ; LCTS-2014-14 ; CERN-PH-TH-2014-061.
- 2014. - 20 p.
Preprint

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2014-04-15
04:24
Tensor B mode and stochastic Faraday mixing / Giovannini, Massimo
Following a recent proposal, the formation of Faraday rotation is treated as a stationary, random and Markovian process. [...]
arXiv:1404.3663 ; CERN-PH-TH-2014-054.
- 2014. - 32 p.
Preprint

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2014-04-11
04:37
Spectator Effects during Leptogenesis in the Strong Washout Regime / Garbrecht, Bjorn ; Schwaller, Pedro
By including spectator fields into the Boltzmann equations for Leptogenesis, we show that partially equilibrated spectator interactions can have a significant impact on the freeze-out value of the asymmetry in the strong washout regime. [...]
arXiv:1404.2915 ; TUM-HEP-938-14 ; CERN-PH-TH-2014-059.
- 2014. - 23 p.
Preprint

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2014-04-08
05:05
Inclusive and pion production neutrino-nucleus cross sections / Martini, M ; Ericson, M
We analyze the experimental data on the inclusive double differential cross section by neutrinos charged current, measured by T2K, with the same model which was successful for the MiniBooNE quasielastic cross sections. [...]
arXiv:1404.1490 ; CERN-PH-TH-2014-055.
- 2014.
Preprint

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2014-04-07
04:26
W Symmetry in six dimensions / Beem, Christopher (Princeton, Inst. Advanced Study) ; Rastelli, Leonardo (Princeton, Inst. Advanced Study ; Santa Barbara, KITP ; YITP, Stony Brook) ; van Rees, Balt C (CERN)
Six-dimensional conformal field theories with $(2,0)$ supersymmetry are shown to possess a protected sector of operators and observables that are isomorphic to a two-dimensional chiral algebra. [...]
arXiv:1404.1079 ; CERN-PH-TH-2014-56.
- 2014. - 34 p.
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2014-04-02
04:34
Towards precise predictions for Higgs-boson production in the MSSM / Bagnaschi, E (Paris, LPTHE ; UPMC, Paris (main) ; Paris U., IV) ; Harlander, R V (Wuppertal U.) ; Liebler, S (U. Hamburg (main)) ; Mantler, H (CERN) ; Slavich, P (Paris U., IV ; UPMC, Paris (main) ; Paris, LPTHE) ; Vicini, A (Milan U. ; INFN, Milan)
We study the production of scalar and pseudoscalar Higgs bosons via gluon fusion and bottom-quark annihilation in the MSSM. [...]
arXiv:1404.0327 ; CERN-PH-TH-2014-048 ; DESY 14-040 ; IFUM 1024-FT ; LPN14-061 ; MCNET-14-07 ; WUB-14-01.
- 2014. - 62 p.
Preprint

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2014-03-31
04:22
Resurrecting Quadratic Inflation in No-Scale Supergravity in Light of BICEP2 / Ellis, John (King's Coll. London ; CERN) ; Garcia, Marcos A G (Minnesota U., Theor. Phys. Inst.) ; Nanopoulos, Dimitri V (Texas A-M ; HARC, Woodlands ; Athens Academy) ; Olive, Keith A (Minnesota U., Theor. Phys. Inst.)
The magnitude of primordial tensor perturbations reported by the BICEP2 experiment is consistent with simple models of chaotic inflation driven by a single scalar field with a power-law potential \propto \phi^n: n \simeq 2, in contrast to the WMAP and Planck results, which favored models resembling the Starobinsky R + R^2 model if running of the scalar spectral index could be neglected. [...]
arXiv:1403.7518 ; KCL-PH-TH-2014-11 ; LCTS-2014-11 ; CERN-PH-TH-2014-049 ; ACT-3-14 ; UMN-TH-3332-14 ; FTPI-MINN-14-10.
- 2014. - 24 p.
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2014-03-26
06:53
Split SUSY Radiates Flavor / Baumgart, Matthew (Carnegie Mellon U.) ; Stolarski, Daniel (Johns Hopkins U. ; Maryland U. ; CERN) ; Zorawski, Thomas (Johns Hopkins U.)
Radiative flavor models where the hierarchies of Standard Model (SM) fermion masses and mixings are explained via loop corrections are elegant ways to solve the SM flavor puzzle. [...]
arXiv:1403.6118 ; CERN-PH-TH-2014-047.
- 2014. - 53 p.
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2014-03-25
04:37
FRW Cosmological Perturbations in Massive Bigravity / Comelli, D (INFN, Ferrara ; CERN) ; Crisostomi, M (Nottingham U. ; Gran Sasso ; Diderot U., Paris) ; Pilo, L (Gran Sasso ; L'Aquila U.)
Cosmological perturbations of FRW solutions in ghost free massive bigravity, including also a second matter sector, are studied in detail. [...]
arXiv:1403.5679 ; CERN-PH-TH-2014-045.
- 2014. - 14 p.
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2014-03-24
04:29
The Imaginary Starobinsky Model / Ferrara, Sergio (CERN ; Frascati ; UCLA) ; Kehagias, Alex (Nat. Tech. U. Athens ; Geneva U., Dept. Theor. Phys.) ; Riotto, Antonio (Geneva U., Dept. Theor. Phys.)
The recent detection by the BICEP2 collaboration of a high level of tensor modes seems to exclude the Starobinsky model of inflation. [...]
arXiv:1403.5531 ; CERN-PH-TH-2014-046.
- 2014. - 10 p.
Preprint

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