CERN Accelerating science

CERN Preprints

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2014-09-01
07:56
Coulomb Branch and The Moduli Space of Instantons / Cremonesi, Stefano ; Ferlito, Giulia ; Hanany, Amihay ; Mekareeya, Noppadol
The moduli space of instantons on C^2 for any simple gauge group is studied using the Coulomb branch of N=4 gauge theories in three dimensions. [...]
arXiv:1408.6835 ; IMPERIAL-TP-14-AH-08 ; CERN-PH-TH-2014-136.
- 2014. - 31 p.
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2014-08-30
23:50
Measurement of Higgs boson production in the diphoton decay channel in $pp$ collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector / ATLAS Collaboration
A measurement of the production processes of the recently discovered Higgs boson is performed in the two-photon final state using 5.4 fb$^{-1}$ of proton-proton collisions data at $\sqrt{s}=7$ TeV and 20.3 fb$^{-1}$ at $\sqrt{s}=8$ TeV collected by the ATLAS detector at the Large Hadron Collider. [...]
CERN-PH-EP-2014-198 ; arXiv:1408.7084.
- 2014. - 32 p.
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2014-08-29
07:39
Chiral algebras of class S / Beem, Christopher ; Peelaers, Wolfger ; Rastelli, Leonardo ; van Rees, Balt C
Four-dimensional N=2 superconformal field theories have families of protected correlation functions that possess the structure of two-dimensional chiral algebras. [...]
arXiv:1408.6522 ; YITP-SB-14-30 ; CERN-PH-TH-2014-165.
- 2014. - 47+15 p.
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2014-08-29
07:38
Catching sparks from well-forged neutralinos / Bramante, Joseph ; Delgado, Antonio ; Elahi, Fatemeh ; Martin, Adam ; Ostdiek, Bryan
In this paper we present a new search technique for electroweakinos, the superpartners of electroweak gauge and Higgs bosons, based on final states with missing transverse energy, a photon, and a dilepton pair, $\ell^+\,\ell^- + \gamma + \displaystyle{\not} E_T$. [...]
arXiv:1408.6530 ; CERN-PH-TH-2014-164.
- 2014. - 29 p.
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2014-08-29
07:38
A perturbative approach to the hydrodynamics of heavy ion collisions / Floerchinger, Stefan ; Wiedemann, Urs Achim ; Beraudo, Andrea ; Del Zanna, Luca ; Inghirami, Gabriele ; Rolando, Valentina
Initial fluctuations in hydrodynamic fields such as energy density or flow velocity give access to understanding initial state and equilibration physics as well as thermodynamic and transport properties. [...]
arXiv:1408.6384 ; CERN-PH-TH-2014-167.
- 2014.
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2014-08-29
07:37
Search for Supersymmetry in the 4-lepton final state with the ATLAS detector / Goblirsch-Kolb, Maximilian (Munich, Max Planck Inst.)
The four-lepton final state, rare in standard model processes, is an attractive channel for new physics searches at the LHC. [...]
arXiv:1408.6832 ; ATL-PHYS-PROC-2014-107.
- 2014.
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2014-08-29
07:37
ATLAS upgrades for the next decades / Hopkins, Walter (Oregon U.)
After the successful LHC operation at the center-of-mass energies of 7 and 8 TeV in 2010-2012, plans are actively advancing for a series of upgrades of the accelerator, culminating roughly ten years from now in the high-luminosity LHC (HL-LHC) project, delivering of the order of five times the LHC nominal instantaneous luminosity along with luminosity leveling. [...]
arXiv:1408.6779 ; ATL-UPGRADE-PROC-2014-003.
- 2014. - 5 p.
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2014-08-29
07:37
Overview of Triple and Quartic Gauge Coupling Measurements at the LHC / Kubota, Takashi (Oregon U.)
Scrutiny of the structure of electroweak gauge boson self-interactions through triple and quartic gauge boson couplings (TGCs and QGCs) constitutes an important part of the physics program of the Large Hadron Collider (LHC). [...]
arXiv:1408.6604.
- 2014. - 4 p.
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2014-08-29
07:36
Gauss-Bonnet assisted Braneworld Inflation in light of BICEP2 and Planck / Neupane, Ishwaree P (CERN)
Motivated by the idea that quantum gravity corrections usually suppress the power of the scalar primordial spectrum (E-mode) more than the power of the tensor primordial spectrum (B-mode), in this Letter we construct a concrete gravitational theory in five-dimensions for which $V(\phi)\propto \phi^n$-type inflation ($n\ge 1$) generates an appropriate tensor-to-scalar ratio that may be compatible with the BICEP2 and Planck data together. [...]
arXiv:1408.6613 ; CERN-PH-TH-2014-168.
- 2014. - 4 p.
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2014-08-29
07:36
SIMPle Dark Matter: Self-Interactions and keV Lines / Boddy, Kimberly K ; Feng, Jonathan L ; Kaplinghat, Manoj ; Shadmi, Yael ; Tait, Timothy M P
We consider a simple supersymmetric hidden sector: pure SU(N) gauge theory. [...]
arXiv:1408.6532 ; UCI-TR-2014-06 ; CERN-PH-TH-2014-162 ; CALT-TH-2014-148.
- 2014. - 6 p.
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