CERN Accelerating science

CERN-TH

Darreres entrades:
2016-09-20
07:48
Starobinsky-Like Inflation and Neutrino Masses in a No-Scale SO(10) Model / Ellis, John ; Garcia, Marcos A G ; Nagata, Natsumi ; Nanopoulos, Dimitri V ; Olive, Keith A
Using a no-scale supergravity framework, we construct an SO(10) model that makes predictions for cosmic microwave background observables similar to those of the Starobinsky model of inflation, and incorporates a double-seesaw model for neutrino masses consistent with oscillation experiments and late-time cosmology. [...]
arXiv:1609.05849 ; KCL-PH-TH-2016-54 ; CERN-PH-TH-2016-18 ; UT-16-29 ; ACT-05-16 ; MI-TH-162 ; UMN-TH-3603-16 ; FTPI-MINN-16-26.
- 2016. - 38 p.
Preprint - Full text

Registre complet - Registres semblants
2016-08-29
07:48
A Higgs in the Warped Bulk and LHC signals / Mahmoudi, F (Lyon Observ. ; CERN) ; Maitra, U (TIFR, Mumbai, Dept. Theor. Phys.) ; Manglani, N (Mumbai U.) ; Sridhar, K (TIFR, Mumbai, Dept. Theor. Phys.)
Warped models with the Higgs in the bulk can generate light Kaluza-Klein (KK) Higgs modes consistent with the electroweak precision analysis. [...]
arXiv:1608.07407 ; CERN-TH-2016-191 ; TIFR-TH-16-30.
- 2016. - 18 p.
Preprint - Full text

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2016-08-24
08:09
Glauber theory and the quantum coherence of curvature inhomogeneities / Giovannini, Massimo (CERN ; INFN, Milan)
The curvature inhomogeneities are systematically scrutinized in the framework of the Glauber approach. [...]
arXiv:1608.05843 ; CERN-TH-2016-181.
- 2016. - 35 p.
Preprint - Full text

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2016-08-19
08:23
The Super-GUT CMSSM Revisited / Ellis, John (CERN ; King's Coll. London) ; Evans, Jason L (Korea Inst. Advanced Study, Seoul) ; Mustafayev, Azar (Minnesota U., Theor. Phys. Inst.) ; Nagata, Natsumi (Minnesota U., Theor. Phys. Inst.) ; Olive, Keith A (Minnesota U., Theor. Phys. Inst.)
We revisit minimal supersymmetric SU(5) grand unification (GUT) models in which the soft supersymmetry-breaking parameters of the minimal supersymmetric Standard Model (MSSM) are universal at some input scale, $M_{in}$, above the supersymmetric gauge coupling unification scale, $M_{GUT}$. [...]
arXiv:1608.05370 ; KCL-PH-TH-2016-52 ; KIAS-P16059 ; UMN-TH-3601-16 ; FTPI-MINN-16-23 ; CERN-TH-2016-185.
- 2016. - 29 p.
Preprint - Full text

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2016-08-19
08:23
Two-loop scale-invariant scalar potential and quantum effective operators / Ghilencea, D M (CERN ; Bucharest, IFIN-HH) ; Lalak, Z (Warsaw U.) ; Olszewski, P (Warsaw U.)
Spontaneous breaking of quantum scale invariance may provide a solution to the hierarchy and cosmological constant problems. [...]
arXiv:1608.05336 ; CERN-TH-2016-186.
- 2016. - 20 p.
Preprint - Full text

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2016-08-17
09:57
Chiral Heterotic Strings with Positive Cosmological Constant / Florakis, Ioannis (CERN) ; Rizos, John (Ioannina U.)
We present explicit examples of semi-realistic heterotic models with spontaneously broken supersymmetry, which dynamically lead to breaking scales much smaller than $M_{\rm Planck}$ and exponentially small positive values for the cosmological constant. [...]
arXiv:1608.04582 ; CERN-TH-2016-179.
- 2016. - 46 p.
Preprint - Full text

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2016-08-11
11:48
Simulating V+jet processes in heavy ion collisions with JEWEL / Elayavalli, Raghav Kunnawalkam (Rutgers U., Piscataway ; CERN) ; Zapp, Korinna Christine (Lisbon, CENTRA ; LIP, Lisbon ; CERN)
Processes in which a jet recoils against an electroweak boson complement studies of jet quenching in heavy ion collisions at the LHC. [...]
arXiv:1608.03099 ; CERN-TH-2016-183 ; MCNET-16-33.
- 2016. - 8 p.
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2016-08-11
11:44
Associated production of a quarkonium and a Z boson at one loop in a quark-hadron-duality approach / Lansberg, Jean-Philippe (Orsay, IPN) ; Shao, Hua-Sheng (CERN)
In view of the large discrepancy about the associated production of a prompt $J/\psi$ and a $Z$ boson between the ATLAS data at $\sqrt{s}=8$ TeV and theoretical predictions for Single Parton Scattering (SPS) contributions, we perform an evaluation of the corresponding cross section at one loop accuracy (Next-to-Leading Order, NLO) in a quark-hadron-duality approach, also known as the Colour-Evaporation Model (CEM). [...]
arXiv:1608.03198 ; CERN-TH-2016-182.
- 2016. - 22 p.
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2016-08-10
09:19
On gravitational and thermal corrections to vacuum decay / Salvio, Alberto (CERN) ; Strumia, Alessandro (INFN, Pisa ; CERN ; Pisa U.) ; Tetradis, Nikolaos (CERN ; Athens U.) ; Urbano, Alfredo (CERN)
We reconsider gravitational corrections to vacuum decay, confirming and simplifying earlier results and extending them allowing for a non-minimal coupling of the Higgs to gravity, finding that leading-order gravitational corrections suppress the vacuum decay rate. Furthermore, we find minor corrections to thermal vacuum decay in the SM adding one-loop corrections to the Higgs kinetic term, two-loop corrections to the Higgs potential and allowing for time-dependent bounces..
arXiv:1608.02555; IFUP-TH-2016; CERN-TH-2016-180.- 2016 - 18 p. - Published in : J. High Energy Phys. 09 (2016) 054 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint

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2016-08-10
09:14
Inflation from Supergravity with Gauged R-symmetry in de Sitter Vacuum / Antoniadis, I (Paris, LPTHE ; Bern U.) ; Chatrabhuti, A (Chulalongkorn U.) ; Isono, H (Chulalongkorn U.) ; Knoops, R (U. Geneva (main) ; KU Leuven, Dept. Phys. Astron.)
We study the cosmology of a recent model of supersymmetry breaking, in the presence of a tuneable positive cosmological constant, based on a gauged shift symmetry of a string modulus that can be identified with the string dilaton. [...]
arXiv:1608.02121 ; CERN-TH-2016-178.
- 2016. - 19 p.
Preprint - Full text

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