CERN Accelerating science

CERN Theory

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2014-08-22
10:14
On the Flavor Structure of Natural Composite Higgs Models & Top Flavor Violation / Azatov, Aleksandr ; Panico, Giuliano ; Perez, Gilad ; Soreq, Yotam
We explore the up flavor structure of composite pseudo Nambu-Goldstone-boson Higgs models, where we focus on the flavor anarchic minimal $SO(5)$ case. [...]
arXiv:1408.4525 ; CERN-PH-TH-2014-159.
- 2014. - 23 p.
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2014-08-22
10:13
The chiral phase transition in two-flavor QCD from imaginary chemical potential / Bonati, Claudio ; de Forcrand, Philippe ; D'Elia, Massimo ; Philipsen, Owe ; Sanfilippo, Francesco
We investigate the order of the finite temperature chiral symmetry restoration transition for QCD with two massless fermions, by using a novel method, based on simulating imaginary values of the quark chemical potential $\mu=i\mu_i,\mu_i\in\mathbb{R}$. [...]
arXiv:1408.5086 ; CERN-PH-TH-2014-158 ; IFUP-TH-2014-8.
- 2014. - 8 p.
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2014-08-22
08:26
Dark matter direct detection constraints from gauge bosons loops / Crivellin, Andreas ; Haisch, Ulrich
While many interactions of dark matter (DM) with the standard model (SM) affect direct detection and LHC searches, there are only a few operators generating annihilation of DM into photons. [...]
arXiv:1408.5046 ; CERN-PH-TH-2014-147.
- 2014. - 7 p.
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2014-08-22
08:25
EFT Beyond the Horizon: Stochastic Inflation and How Primordial Quantum Fluctuations Go Classical / Burgess, C P ; Holman, R ; Tasinato, G ; Williams, M
We identify the effective theory describing inflationary super-Hubble scales and show it to be a special case of effective field theories appropriate to open systems. [...]
arXiv:1408.5002 ; CERN-PH-TH-2014-142.
- 2014. - 25 p.
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2014-08-22
08:24
Magnetization of fluid phonons and large-scale curvature perturbations / Giovannini, Massimo
The quasinormal mode of a gravitating and magnetized fluid in a spatially flat, isotropic and homogeneous cosmological background is derived in the presence of the fluid sources of anisotropic stress and of the entropic fluctuations of the plasma. [...]
arXiv:1408.4620 ; CERN-PH-TH-2014-119.
- 2014. - 30 p.
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2014-08-20
07:34
Muon g-2 Anomaly and Dark Leptonic Gauge Boson / Lee, Hye-Sung
One of the major motivations to search for a dark gauge boson of MeV-GeV scale is the long-standing muon g-2 anomaly. [...]
arXiv:1408.4256 ; CERN-PH-TH-2014-157.
- 2014. - 5 p.
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2014-08-19
07:40
Gravity and axions from a random UV QFT / Kiritsis, Elias
It is postulated that the UV QFT is enormous and random. The coupling of the Standard Model to such QFT is analyzed. [...]
arXiv:1408.3541; CCTP-2014-14; CERN-PH-TH-2014-153.- 2014 - 39 p. - Published in : EPJ Web Conf. 71 (2014) 00068 Fulltext: PDF; External link: Preprint

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2014-08-19
07:39
The NUHM2 after LHC Run 1 / Buchmueller, O ; Cavanaugh, R ; Citron, M ; De Roeck, A ; Dolan, M J ; Ellis, J R ; Flaecher, H ; Heinemeyer, S ; Malik, S ; Marrouche, J et al.
We make a frequentist analysis of the parameter space of the NUHM2, in which the soft supersymmetry (SUSY)-breaking contributions to the masses of the two Higgs multiplets, $m^2_{H_{u,d}}$, vary independently from the universal soft SUSY-breaking contributions $m^2_0$ to the masses of squarks and sleptons. [...]
arXiv:1408.4060 ; KCL-PH-TH-2014-33 ; LCTS-2014-29 ; CERN-PH-TH-2014-145 ; DESY 14-144 ; FTPI-MINN-14-39 ; UMN-TH-3344-14 ; SLAC-PUB-16051.
- 2014. - 20 p.
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2014-08-19
07:39
Pinning down compressed supersymmetric scenarios with monotop probes / Fuks, Benjamin ; Richardson, Peter ; Wilcock, Alexandra
We investigate the sensitivity of the Large Hadron Collider to compressed supersymmetric setups by means of monotop events where a single top quark is produced in association with missing transverse energy. [...]
arXiv:1408.3634 ; CERN-PH-TH-2014-154 ; IPPP-14-75 ; DCPT-14-150 ; MCNET-14-17.
- 2014. - 16 p.
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2014-08-19
07:39
Cosmology with Nilpotent Superfields / Ferrara, Sergio ; Kallosh, Renata ; Linde, Andrei
We discuss N=1 supergravity inflationary models based on two chiral multiplets, the inflaton and the goldstino superfield. [...]
arXiv:1408.4096 ; CERN-PH-TH-2014-151.
- 2014. - 27 p.
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