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TH Articles

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Di-boson Production beyond NLO QCD and Anomalous Couplings / Campanario, F (KIT, Karlsruhe, TP) ; Rauch, M (KIT, Karlsruhe, TP) ; Roth, R (KIT, Karlsruhe, TP) ; Sapeta, S (Cracow, INP ; CERN) ; Zeppenfeld, D (KIT, Karlsruhe, TP)
In these proceedings, we review results for several di-boson production processes beyond NLO QCD at high transverse momenta using the VBFNLO Monte-Carlo program together with the LOOPSIM method. Additionally, we show for the WZ production process how higher order QCD corrections can resemble anomalous coupling effects..
arXiv:1511.00913; CERN-PH-TH-2015-241; FT-UV-15-1103; IFIC-15-86; IFJPAN-IV-2015-16; KA-TH-21-2015.- Geneva : CERN, 2015 - Published in : Acta Phys. Pol. B 46 (2015) 2165-2171 Fulltext: PDF; Jagiellonian U. Open Access article: PDF; External link: Preprint
In : 39th International Conference of Theoretical Physics: Matter to the Deepest, Recent Developments in Physics of Fundamental Interactions, Ustron, Poland, 13 - 18 Sep 2015, pp.2165-2171

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Hypermagnetic gyrotropy, inflation and the baryon asymmetry of the Universe / Giovannini, Massimo (CERN ; INFN, Milan Bicocca)
We investigate the production of the hypermagnetic gyrotropy when the electric and magnetic gauge couplings evolve at different rates, as it happens in the the relativistic theory of the Van der Waals forces. If a pseudo-scalar interaction breaks the duality symmetry of the corresponding equations, the gyrotropic configurations of the hypermagnetic fields can be amplified from the vacuum during an inflationary stage of expansion. [...]
arXiv:1511.00138; CERN-PH-TH-2015-195.- 2015 - 8 p. - Published in : Phys. Rev. D 92 (2015) 121301 Fulltext: PDF; External link: Preprint

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PDF4LHC recommendations for LHC Run II / Butterworth, Jon (University Coll. London) ; Carrazza, Stefano (INFN, Milan ; Milan U.) ; Cooper-Sarkar, Amanda (Oxford U.) ; De Roeck, Albert (CERN ; U. Antwerp (main)) ; Feltesse, Joel (Saclay) ; Forte, Stefano (INFN, Milan ; Milan U.) ; Gao, Jun (Argonne) ; Glazov, Sasha (DESY) ; Huston, Joey (Michigan State U.) ; Kassabov, Zahari (INFN, Milan ; Milan U. ; Turin U. ; INFN, Turin) et al.
We provide an updated recommendation for the usage of sets of parton distribution functions (PDFs) and the assessment of PDF and PDF+$\alpha_s$ uncertainties suitable for applications at the LHC Run II. We review developments since the previous PDF4LHC recommendation, and discuss and compare the new generation of PDFs, which include substantial information from experimental data from the Run I of the LHC. [...]
arXiv:1510.03865; OUTP-15-17P; SMU-HEP-15-12; TIF-UNIMI-2015-14; LCTS-2015-27; CERN-PH-TH-2015-249.- 2016 - 65 p. - Published in : J. Phys. G 43 (2016) 023001 External link: Preprint

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QCD corrections to ZZ production in gluon fusion at the LHC / Caola, Fabrizio (CERN) ; Melnikov, Kirill (KIT, Karlsruhe, TTP) ; Röntsch, Raoul (Fermilab) ; Tancredi, Lorenzo (KIT, Karlsruhe, TTP)
We compute the next-to-leading order QCD corrections to the production of two Z-bosons in the annihilation of two gluons at the LHC. Being enhanced by a large gluon flux, these corrections provide distinct and, potentially, the dominant part of the N$^3$LO QCD contributions to Z-pair production in proton collisions. [...]
arXiv:1509.06734; TTP15-035; CERN-PH-TH-2015-226; FERMILAB-PUB-15-398-T.- 2015 - 18 p. - Published in : Phys. Rev. D 92 (2015) 094028 Fulltext: PDF; External link: Preprint

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General squark flavour mixing: constraints, phenomenology and benchmarks / De Causmaecker, Karen (Brussels U., IIHE ; Intl. Solvay Inst., Brussels) ; Fuks, Benjamin (UPMC, Paris (main) ; Paris, LPTHE ; Strasbourg, IPHC ; Strasbourg, IReS) ; Herrmann, Bjoern (Annecy, Lapth) ; Mahmoudi, Farvah (Ecole Normale Supérieure, Paris ; Lyon Observ. ; Lyon U. ; CERN) ; O'Leary, Ben (Wurzburg U.) ; Porod, Werner (Wurzburg U.) ; Sekmen, Sezen (Kyungpook Natl. U.) ; Strobbe, Nadja (Gent U. ; Fermilab)
We present an extensive study of non-minimal flavour violation in the squark sector in the framework of the Minimal Supersymmetric Standard Model. We investigate the effects of multiple non-vanishing flavour-violating elements in the squark mass matrices by means of a Markov Chain Monte Carlo scanning technique and identify parameter combinations that are favoured by both current data and theoretical constraints. [...]
arXiv:1509.05414; CERN-PH-TH-2015-208; LAPTH-034-15.- 2015 - 31 p. - Published in : J. High Energy Phys. 11 (2015) 125 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint

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Tools for dark matter indirect detection / Cirelli, Marco (CERN ; Saclay, SPhT)
CERN-PH-TH-2012-032.- 2012 - 9 p. - Published in : Frascati Phys. Ser.: 54 (2012) , pp. 32-40
In : LC11: understanding QCD at Linear Colliders in searching for old and new physics, Trento, Italy, 12 - 16 Sep 2011, pp.32-40

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Supersymmetric branes on curved spaces and fluxes / Triendl, Hagen (CERN)
We discuss general supersymmetric brane configurations in flux backgrounds of string and M-theory and derive a necessary condition for the worldvolume theory to be supersymmetric on a given curved manifold. This condition resembles very much the conditions found from coupling a supersymmetric field theory to off-shell supergravity but can be derived in any dimension and for up to sixteen supercharges. [...]
arXiv:1509.02926; CERN-PH-TH-2015-212.- 2015 - 18 p. - Published in : J. High Energy Phys. 11 (2015) 025 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint

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Stop-Catalyzed Baryogenesis Beyond the MSSM / Katz, Andrey (CERN ; Geneva U., Dept. Theor. Phys. ; Geneva U., CAP) ; Perelstein, Maxim (Cornell U., LEPP) ; Ramsey-Musolf, Michael J (Massachusetts U., Amherst ; Caltech, Kellogg Lab) ; Winslow, Peter (Massachusetts U., Amherst)
Non-minimal supersymmetric models that predict a tree-level Higgs mass above the Minimal Supersymmetric Standard Model (MSSM) bound are well motivated by naturalness considerations. Indirect constraints on the stop sector parameters of such models are significantly relaxed compared to the MSSM; in particular, both stops can have weak-scale masses. [...]
arXiv:1509.02934; CERN-PH-TH-2015-217; ACFI-T15-15.- 2015 - 9 p. - Published in : Phys. Rev. D 92 (2015) 095019 Fulltext: PDF; External link: Preprint

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Melting Hadrons, Boiling Quarks / Rafelski, Johann (CERN ; Arizona U.)
In the context of the Hagedorn temperature half-centenary I describe our understanding of the hot phases of hadronic matter both below and above the Hagedorn temperature. The first part of the review addresses many frequently posed questions about properties of hadronic matter in different phases, phase transition and the exploration of quark-gluon plasma (QGP). [...]
arXiv:1508.03260; CERN-PH-TH-2015-194.- Geneva : CERN, 2015 - 82 p. - Published in : Eur. Phys. J. A (2015) 51: 114 (and 115 and 116 for appendix/addenda) Fulltext: source - ZIP; CERN-PH-TH-2015-194 - PDF; arXiv:1508.03260 - PDF; External link: Preprint

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Scale invariant Volkov-Akulov Supergravity / Ferrara, S (CERN ; INFN, Frascati ; UCLA) ; Porrati, M (CERN ; New York U., CCPP) ; Sagnotti, A (CERN ; INFN, Pisa)
A scale invariant Goldstino theory coupled to Supergravity is obtained as a standard supergravity dual of a rigidly scale invariant higher--curvature Supergravity with a nilpotent chiral scalar curvature. The bosonic part of this theory describes a massless scalaron and a massive axion in a de Sitter Universe..
arXiv:1508.02939; CERN-PH-TH-2015-193.- 2015 - 7 p. - Published in : Phys. Lett. B 749 (2015) 589-591 Elsevier Open Access article: PDF; Fulltext: PDF; External link: Preprint

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