CERN Accelerating science

CERN-TH

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2020-05-23
04:11
LISA Sensitivity to Gravitational Waves from Sound Waves / Schmitz, Kai
Gravitational waves (GWs) produced by sound waves in the primordial plasma during a strong first-order phase transition in the early Universe are going to be a main target of the upcoming Laser Interferometer Space Antenna (LISA) experiment. [...]
arXiv:2005.10789 ; CERN-TH-2020-079.
- 16 p.
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2020-05-23
04:10
Mixed QCD-electroweak corrections to on-shell Z production at the LHC / Buccioni, Federico ; Caola, Fabrizio ; Delto, Maximilian ; Jaquier, Matthieu ; Melnikov, Kirill ; Röntsch, Raoul
We present the first complete calculation of mixed QCD-electroweak corrections to the production of on-shell $Z$ bosons in hadron collisions and their decays to massless charged leptons. [...]
arXiv:2005.10221 ; OUTP-20-04P,TTP20-021 ; P3H-20-019 ; CERN-TH-2020-072.
- 6 p.
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2020-05-20
08:04
Quasi-Jacobi Forms, Elliptic Genera and Strings in Four Dimensions / Lee, Seung-Joo (IBS) ; Lerche, Wolfgang (CERN) ; Lockhart, Guglielmo (CERN) ; Weigand, Timo (UMainz)
We investigate the interplay between the enumerative geometry of Calabi-Yau fourfolds with fluxes and the modularity of elliptic genera in four-dimensional string theories. [...]
CERN-TH-2020-077.
- 2020. - 90.
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2020-05-20
04:28
Precise predictions for boosted Higgs production / Becker, K. ; Caola, F. ; Massironi, A. ; Mistlberger, B. ; Monni, P.F. ; Chen, X. ; Frixione, S. ; Gehrmann, T. ; Glover, N. ; Hamilton, K. et al.
Inclusive Higgs boson production at large transverse momentum is induced by different production channels. [...]
arXiv:2005.07762 ; CERN-TH-2020-074.
- 15 p.
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2020-05-09
05:03
Predictions for $\mathrm{Z}$-boson production in association with a $\mathrm{b}$-jet at $\mathcal{O}(\alpha_s^3)$ / Gauld, R. (Nikhef, Amsterdam) ; Gehrmann-De Ridder, A. (Zurich, ETH ; Zurich U.) ; Glover, E.W. N. (Durham U., IPPP) ; Huss, A. (Durham U., IPPP ; CERN) ; Majer, I. (Zurich, ETH)
Fixed-order predictions are provided for the associated production of a $\mathrm{Z}$-boson and a $\mathrm{b}$-jet at $\mathcal{O}(\alpha_s^3)$ in perturbative QCD, obtained by combining a massless next-to-next-to-leading order and a massive next-to-leading order calculation. [...]
arXiv:2005.03016 ; NIKHEF 2020-012 ; ZU-TH 12/20 ; IPPP/20/13 ; CERN-TH-2020-071.
- 6 p.
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2020-05-08
04:13
Heavy quark diffusion in an overoccupied gluon plasma / Boguslavski, K. (Vienna, Tech. U.) ; Kurkela, A. (CERN ; Stavanger U.) ; Lappi, T. (Jyvaskyla U. ; Helsinki U.) ; Peuron, J. (ECT, Trento ; Fond. Bruno Kessler, Trento)
We extract the heavy-quark diffusion coefficient \kappa and the resulting momentum broadening <p^2> in a far-from-equilibrium non-Abelian plasma. [...]
arXiv:2005.02418 ; CERN-TH-2020-069.
- 21 p.
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2020-04-29
05:49
The Fully-Differential Gluon Beam Function at NNLO / Gaunt, Jonathan R. (CERN) ; Stahlhofen, Maximilian (Freiburg U.)
The fully-differential beam function (dBF) is a universal ingredient in resummed predictions of hadron collider observables that probe the full kinematics of the incoming parton from each colliding proton -- the virtuality and transverse momentum as well as the light-cone momentum fraction $x$. [...]
arXiv:2004.11915 ; CERN-TH-2020-065 ; FR-PHENO-2020-003.
- 21 p.
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2020-04-29
05:48
New result on phase shift analysis / Martin, André (CERN) ; Richard, Jean-Marc (IP2I, Lyon)
Assuming a certain continuity property, we prove, using the old results of Itzykson and Martin, that, except for an obvious ambiguity, there are only at most two amplitudes reproducing an elastic differential cross section at a given energy..
arXiv:2004.11156; CERN-TH-2020-066.- 2020-05-15 - 6 p. - Published in : Phys. Rev. D 101 (2020) 094014 Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;

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2020-04-25
04:01
Prospects of searches for long-lived charged particles with MoEDAL / Acharya, B.S. (King's Coll. London (main) ; ICTP, Trieste) ; De Roeck, A. (CERN ; Antwerp U.) ; Ellis, J. (King's Coll. London ; CERN ; NICPB, Tallinn) ; Ghosh, D.K. (IACS, Kolkata) ; Masełek, R. (Warsaw U.) ; Panizzo, G. (ICTP, Trieste ; INFN, Trieste) ; Pinfold, J.L. (Alberta U.) ; Sakurai, K. (Warsaw U.) ; Shaa, A. (Warsaw U.) ; Wall, A. (Alabama U.)
We study the prospects of searches for exotic long-lived particles with the MoEDAL detector at the LHC, assuming the integrated luminosity of 30 fb$^{-1}$ that is expected at the end of Run 3. [...]
arXiv:2004.11305 ; KCL-PH-TH/2020-18 ; CERN-TH-2020-060.
- 20 p.
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2020-04-24
04:50
CLASS-PT: non-linear perturbation theory extension of the Boltzmann code CLASS / Chudaykin, Anton ; Ivanov, Mikhail M. ; Simonović, Marko
We present a new open-source code that calculates one-loop power spectra and cross spectra for matter fields and biased tracers in real and redshift space. [...]
arXiv:2004.10607 ; INR-TH-2020-016 ; CERN-TH-2020-062.
- 48 p.
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