CERN Accelerating science

CERN Theory

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2014-07-22
09:25
Higher Curvature Supergravity, Supersymmetry Breaking and Inflation / Ferrara, Sergio (CERN ; Frascati ; UCLA) ; Kehagias, Alex (Natl. Tech. U., Athens ; Geneva U., Dept. Theor. Phys)
In these lectures, after a short introduction to cosmology, we discuss the supergravity embedding of higher curvature models of inflation. [...]
arXiv:1407.5187 ; CERN-PH-TH-2014-134.
- 2014.
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2014-07-21
04:36
Resurgent Transseries and the Holomorphic Anomaly: Nonperturbative Closed Strings in Local $\mathbb{C}\mathbb{P}^2$ / Couso-Santamaría, Ricardo (CERN ; Santiago de Compostela U. ; Santiago de Compostela U., IGFAE) ; Edelstein, Jose D (Santiago de Compostela U. ; Santiago de Compostela U., IGFAE ; CECS, Valdivia) ; Schiappa, Ricardo (CERN ; Lisbon, IST Maths) ; Vonk, Marcel (Amsterdam U.)
The holomorphic anomaly equations describe B-model closed topological strings in Calabi-Yau geometries. [...]
arXiv:1407.4821 ; CERN-PH-TH-2014-110.
- 2014. - 63 p.
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2014-07-21
04:35
Nonderivative Modified Gravity: a Classification / Comelli, Denis (INFN, Ferrara ; CERN) ; Nesti, Fabrizio (Boskovic Inst., Zagreb ; GSSI, Aquila) ; Pilo, Luigi (L'Aquila U. ; Gran Sasso)
We analyze the theories of gravity modified by a generic nonderivative potential built from the metric, under the minimal requirement of unbroken spatial rotations. [...]
arXiv:1407.4991 ; CERN-PH-TH-2014-132.
- 2014.
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2014-07-19
04:34
Pure Gravities via Color-Kinematics Duality for Fundamental Matter / Johansson, Henrik ; Ochirov, Alexander
We give a prescription for the computation of loop-level scattering amplitudes in pure Einstein gravity, and four-dimensional pure supergravities, using the color-kinematics duality. [...]
arXiv:1407.4772 ; CERN-PH-TH-2014-125 ; IPHT-T14-090.
- 2014. - 48 p.
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2014-07-16
05:05
Higgs Mass and Unnatural Supersymmetry / Bagnaschi, Emanuele ; Giudice, Gian F ; Slavich, Pietro ; Strumia, Alessandro
Assuming that supersymmetry exists well above the weak scale, we derive the full one-loop matching conditions between the SM and the supersymmetric theory, allowing for the possibility of an intermediate Split-SUSY scale. [...]
arXiv:1407.4081 ; CERN-PH-TH-2014-131 ; IFUP-TH-2014.
- 2014. - 36 p.
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2014-07-16
05:05
Towards a public analysis database for LHC new physics searches using MadAnalysis 5 / Dumont, B ; Fuks, B ; Kraml, S ; Bein, S ; Chalons, G ; Conte, E ; Kulkarni, S ; Sengupta, D ; Wymant, C
We present the implementation, in the MadAnalysis 5 framework, of several ATLAS and CMS searches for supersymmetry in data recorded during the first run of the LHC. [...]
arXiv:1407.3278 ; CERN-PH-TH-2014-109 ; LAPTH-048-14.
- 2014. - 18 p.
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2014-07-14
04:21
Multi-loop integrand reduction techniques / Badger, Simon (CERN) ; Frellesvig, Hjalte (INFN, Rome ; DARK Cosmology Ctr.) ; Zhang, Yang (DARK Cosmology Ctr.)
We review recent progress in D-dimensional integrand reduction algorithms for two loop amplitudes and give examples of their application to non-planar maximal cuts of the five-point all-plus helicity amplitude in QCD..
arXiv:1407.3133 ; CERN-PH-TH-2014-128.
- 2014. - 8 p.
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2014-07-14
04:21
NNLOPS accurate Drell-Yan production / Karlberg, Alexander (Oxford U., Theor. Phys.) ; Re, Emanuele (Oxford U., Theor. Phys.) ; Zanderighi, Giulia (CERN)
We present a next-to-next-to-leading order accurate description of Drell-Yan lepton pair production processes through $\gamma^*/Z$ or $W$ exchange that includes consistently parton shower effects. [...]
arXiv:1407.2940 ; CERN-PH-TH-2014-129 ; OUTP-14-12P.
- 2014. - 31 p.
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2014-07-12
04:12
Determination of the top quark mass from leptonic observables / Frixione, Stefano (CERN) ; Mitov, Alexander (Cambridge U.)
We present a procedure for the determination of the mass of the top quark at the LHC based on leptonic observables in dilepton $t\bar{t}$ events. [...]
arXiv:1407.2763 ; CERN-PH-TH-2014-117 ; CAVENDISH-HEP-14-05.
- 2014. - 29 p.
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2014-07-10
05:13
The Higgs and the Excessive Success of the Standard Model / Altarelli, Guido (INFN, Rome3 ; CERN)
The LHC runs at 7 and 8 TeV have led to the discovery of the Higgs boson at 125 GeV which will remain as one of the major physics discoveries of our time. [...]
arXiv:1407.2122 ; RM3-TH-14-12 ; CERN-PH-TH-2014-127.
- 2014. - 19 p.
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