CERN Accelerating science

TH Preprints

Posledne pridané:
2017-02-28
07:18
Large hadronic power corrections or new physics in the rare decay $B \to K^* \mu^+ \mu^-$ ? / Chobanova, V.G. (Santiago de Compostela U., IGFAE) ; Hurth, T. (U. Mainz, PRISMA) ; Mahmoudi, F. (Lyon U. ; CERN ; Lyon, Ecole Normale Superieure) ; Martinez Santos, D. (Santiago de Compostela U., IGFAE) ; Neshatpour, S. (IPM, Tehran)
The well-known problem of the unknown power corrections within QCD improved factorisation leaves the interpretation of the so-called LHCb anomalies in the angular observables of B-->K* mu+ mu- as an open problem. [...]
CERN-TH-2017-031 ; IPM-PA-455 ; MITP-17-007 ; arXiv:1702.02234.
- 17 p.
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2017-02-25
07:55
Topics in Higgs Physics / Ellis, John (King's Coll. London ; CERN)
These lecture notes review the theoretical background to the Higgs boson, provide an introduction to its phenomenology, and describe the experimental tests that lead us to think that "beyond any reasonable doubt, it is a Higgs boson". [...]
KCL-PH-TH-2017-09 ; CERN-TH-2017-039 ; arXiv:1702.05436.
- 40 p.
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2017-02-25
07:55
A string realisation of $\varOmega$-deformed Abelian $\mathcal{N}=2^*$ theory / Angelantonj, Carlo (INFN, Turin ; Turin U.) ; Antoniadis, Ignatios (Paris, LPTHE ; UPMC, Paris (main) ; U. Bern, AEC) ; Samsonyan, Marine (CERN)
The $\mathscr{N}=2^*$ supersymmetric gauge theory is a massive deformation of $\mathscr{N}=4$, in which the adjoint hypermultiplet gets a mass. [...]
CERN-TH-2017-038 ; arXiv:1702.04998.
- 23 p.
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2017-02-25
07:55
Hypermagnetic knots and gravitational radiation at intermediate frequencies / Giovannini, Massimo (CERN ; INFN, Milan Bicocca)
The maximally gyrotropic configurations of the hypermagnetic field at the electroweak epoch can induce a stochastic background of relic gravitational waves with comoving frequencies ranging from the $\mu$Hz to the kHz. [...]
arXiv:1702.04293 ; CERN-TH-2016-195.
- 13 p.
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2017-02-23
07:06
Multiple D3-instantons and mock modular forms II / Alexandrov, Sergei (U. Montpellier, L2C ; CERN) ; Banerjee, Sibasish (IPhT, Saclay) ; Manschot, Jan (Trinity Coll., Dublin ; Hamilton Math. Inst., Dublin) ; Pioline, Boris (CERN ; Paris, LPTHE ; UPMC, Paris (main))
We analyze the modular properties of D3-brane instanton corrections to the hypermultiplet moduli space in type IIB string theory compactified on a Calabi-Yau threefold. [...]
L2C:17-011 ; CERN-TH-2017-040 ; IPHT-T17-020 ; arXiv:1702.05497.
- 2017. - 48 p.
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2017-02-10
07:38
Bootstrapping Mixed Correlators in 4D $\mathcal{N}=1$ SCFTs / Li, Daliang (Johns Hopkins U.) ; Meltzer, David (Yale U.) ; Stergiou, Andreas (Yale U. ; CERN)
The numerical conformal bootstrap is used to study mixed correlators in $\mathcal{N}=1$ superconformal field theories (SCFTs) in $d=4$ spacetime dimensions. [...]
CERN-TH-2017-024 ; arXiv:1702.00404.
- 32 p.
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2017-02-10
07:37
Dark sectors and enhanced $h\to \tau \mu$ transitions / Galon, Iftah (UC, Irvine) ; Zupan, Jure (Cincinnati U. ; CERN)
LHC searches with $\tau$ leptons in the final state are always inclusive in missing-energy sources. [...]
UCI-HEP-TR-2016-17 ; MITP-16-114 ; CERN-TH-2016-260 ; arXiv:1701.08767.
- 22 p.
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2017-02-10
07:37
Aspects of Berry phase in QFT / Baggio, Marco (Leuven U.) ; Niarchos, Vasilis (Durham U., Dept. of Math. ; Durham U., CPT) ; Papadodimas, Kyriakos (CERN ; U. Groningen, VSI)
When continuous parameters in a QFT are varied adiabatically, quantum states typically undergo mixing---a phenomenon characterized by the Berry phase. [...]
CERN-TH-2016-241 ; DCPT-16-55 ; arXiv:1701.05587.
- 50 p.
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2017-02-09
08:13
Four-derivative couplings and BPS dyons in heterotic CHL orbifolds / Bossard, Guillaume (Ecole Polytechnique, CPHT) ; Cosnier-Horeau, Charles (Ecole Polytechnique, CPHT ; UPMC, Paris (main) ; Paris, LPTHE) ; Pioline, Boris (UPMC, Paris (main) ; Paris, LPTHE ; CERN)
Three-dimensional string models with half-maximal supersymmetry are believed to be invariant under a large U-duality group which unifies the S and T dualities in four dimensions. [...]
CERN-TH-2017-028 ; CPHT-RR004.022017 ; arXiv:1702.01926.
- 72 p.
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2017-02-09
08:13
Nested soft-collinear subtractions in NNLO QCD computations / Caola, Fabrizio (CERN ; Durham U., IPPP) ; Melnikov, Kirill (Karlsruhe U.) ; Röntsch, Raoul (Karlsruhe U.)
We discuss a modification of the next-to-next-to-leading order (NNLO) subtraction scheme based on the residue-improved sector decomposition that reduces the number of double-real emission sectors from five to four. [...]
CERN-TH-2017-029 ; IPPP-17-10 ; TTP17-003 ; arXiv:1702.01352.
- 64 p.
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