CERN Accelerating science

TH Preprints

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2015-07-27
07:26
Large scale structure from viscous dark matter / Blas, Diego (CERN) ; Floerchinger, Stefan (CERN) ; Garny, Mathias (CERN) ; Tetradis, Nikolaos (CERN ; Athens U.) ; Wiedemann, Urs Achim (CERN)
Cosmological perturbations of sufficiently long wavelength admit a fluid dynamic description. [...]
arXiv:1507.06665 ; CERN-PH-TH-2015-172.
- 2015. - 30 p.
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2015-07-24
14:53
Quark flavour observables in the Littlest Higgs model with T-parity after LHC Run 1 / Blanke, Monika (CERN ; Karlsruhe U., TTP ; Karlsruhe, Forschungszentrum) ; Buras, Andrzej J (TUM-IAS, Munich ; Munich, Tech. U.) ; Recksiegel, Stefan (Munich, Tech. U.)
The Littlest Higgs Model with T-parity (LHT) belongs to the simplest new physics scenarios with new sources of flavour and CP violation. [...]
arXiv:1507.06316 ; CERN-PH-TH-2015-158 ; TTP15-023 ; FLAVOUR(267104)-ERC-104.
- 2015. - 34 p.
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2015-07-23
08:24
Gluon PDF constraints from the ratio of forward heavy quark production at the LHC at $\sqrt{S}$ = 7 and 13 TeV / Cacciari, Matteo (Diderot U., Paris ; Paris, LPTHE ; UPMC, Paris (main) ; CERN) ; Mangano, Michelangelo L (CERN) ; Nason, Paolo (INFN, Milan Bicocca)
We discuss production of charm and bottom quarks at forward rapidity in pp collisions at the LHC, updating the QCD predictions for the run at $\sqrt{S}$ = 13 TeV. [...]
arXiv:1507.06197 ; CERN-PH-TH-2015-171.
- 2015. - 21 p.
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2015-07-23
08:24
Evanescent Effects Can Alter Ultraviolet Divergences in Quantum Gravity without Physical Consequences / Bern, Zvi (UCLA ; CERN) ; Cheung, Clifford (Caltech, Pasadena (main)) ; Chi, Huan-Hang (SLAC) ; Davies, Scott (UCLA) ; Dixon, Lance (Caltech, Pasadena (main) ; SLAC) ; Nohle, Josh (UCLA)
Evanescent operators such as the Gauss-Bonnet term have vanishing perturbative matrix elements in exactly D=4 dimensions. [...]
arXiv:1507.06118 ; SLAC-PUB-16332 ; CERN-PH-TH-2015-162 ; UCLA-15-TEP-101 ; CALT-2015-036.
- 2015. - 6 p.
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2015-07-22
08:19
The $(2,0)$ superconformal bootstrap / Beem, Christopher (Princeton, Inst. Advanced Study) ; Lemos, Madalena (YITP, Stony Brook) ; Rastelli, Leonardo (YITP, Stony Brook) ; van Rees, Balt C (CERN)
We develop the conformal bootstrap program for six-dimensional conformal field theories with $(2,0)$ supersymmetry, focusing on the universal four-point function of stress tensor multiplets. [...]
arXiv:1507.05637 ; CERN-PH-TH-2015-165 ; YITP-SB-15-25.
- 2015. - 58 p.
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2015-07-22
08:19
Fluid dynamic propagation of initial baryon number perturbations on a Bjorken flow background / Floerchinger, Stefan (CERN) ; Martinez, Mauricio (Ohio State U.)
Baryon number density perturbations offer a possible route to experimentally measure baryon number susceptibilities and heat conductivity of the quark gluon plasma. [...]
arXiv:1507.05569 ; CERN-PH-TH-2015-169.
- 2015. - 47 p.
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2015-07-22
08:16
Higgs mass predictions of public NMSSM spectrum generators / Staub, Florian (CERN) ; Athron, Peter (ARC, CoEPP, Melbourne) ; Ellwanger, Ulrich (Southampton U. ; Orsay, LPT) ; Grober, Ramona (INFN, Rome3) ; Muhlleitner, Margarete (Karlsruhe U., TTP) ; Slavich, Pietro (Paris, LPTHE) ; Voigt, Alexander (DESY)
The publicly available spectrum generators for the NMSSM often lead to different predictions for the mass of the standard model-like Higgs boson even if using the same renormalization scheme and two-loop accuracy. [...]
arXiv:1507.05093 ; CERN-PH-TH-2015-164 ; DESY 15-122 ; KA-TP-16-2015 ; LPT-ORSAY-15-54 ; RM3-TH-15-11.
- 2015. - 24 p.
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2015-07-14
08:36
HELAC-Onia 2.0: an upgraded matrix-element and event generator for heavy quarkonium physics / Shao, Hua-Sheng (CERN)
We present an upgraded version (denoted as version 2.0) of the program HELAC-Onia for the automated computation of heavy-quarkonium helicity amplitudes within non-relativistic QCD framework. [...]
arXiv:1507.03435 ; CERN-PH-TH-2015-155.
- 2015. - 55 p.
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2015-07-14
08:35
The refractive index of relic gravitons / Giovannini, Massimo (CERN ; INFN, Milan)
The dynamical evolution of the refractive index of the tensor modes of the geometry produces a specific class of power spectra characterized by a blue (i.e. [...]
arXiv:1507.03456 ; CERN-PH-TH-2015-161.
- 2015. - 30 p.
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2015-07-13
07:29
Probing the Charm Yukawa Coupling in Higgs + Charm Production / Brivio, Ilaria (Madrid, IFT) ; Goertz, Florian (CERN) ; Isidori, Gino (Zurich U. ; Frascati)
We propose a new method to determine the coupling of the Higgs boson to charm quarks, via Higgs production in association with a charm-tagged jet: $pp\to hc$. [...]
arXiv:1507.02916 ; CERN-PH-TH-2015-160 ; FTUAM-15-19 ; IFT-UAM-CSIC-15-068 ; ZU-TH 23-15.
- 2015. - 5 p.
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