CERN Accelerating science

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1.
A Cell Resampler study of Negative Weights in Multi-jet Merged Samples / Andersen, Jeppe R. (Durham U. (main) ; CERN) ; Cueto, Ana (U. Autonoma, Madrid (main)) ; Jones, Stephen P. (Durham U. (main)) ; Maier, Andreas (Barcelona, IFAE ; Barcelona, Autonoma U.)
We study the use of cell resampling to reduce the fraction of negatively weighted Monte Carlo events in a generated sample typical of that used in experimental analyses. [...]
CERN-TH-2024-200 ; IPPP/24/73 ; arXiv:2411.11651.
- 11.
Fulltext
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EuCAPT White Paper: Opportunities and Challenges for Theoretical Astroparticle Physics in the Next Decade / Alves Batista, R. (Madrid, IFT) ; Amin, M.A. (Rice U.) ; Barenboim, G. (Valencia U.) ; Bartolo, N. (U. Padua, Dept. Phys. Astron.) ; Baumann, D. (Amsterdam U. ; U. Amsterdam, GRAPPA ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Bauswein, A. (Darmstadt, GSI) ; Bellini, E. (Geneva U., Dept. Theor. Phys.) ; Benisty, D. (Cambridge U., DAMTP ; Cambridge U., KICC ; Cambridge U., Inst. of Astron.) ; Bertone, G. (Amsterdam U. ; U. Amsterdam, GRAPPA) ; Blasi, P. (GSSI, Aquila ; Gran Sasso) et al.
Astroparticle physics is undergoing a profound transformation, due to a series of extraordinary new results, such as the discovery of high-energy cosmic neutrinos with IceCube, the direct detection of gravitational waves with LIGO and Virgo, and many others. [...]
arXiv:2110.10074.
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Fulltext
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Event generation with Sherpa 3 / Sherpa Collaboration
Sherpa is a general-purpose Monte Carlo event generator for the simulation of particle collisions in high-energy collider experiments. [...]
arXiv:2410.22148 ; IPPP/24/67 ; LTH-1385 ; FERMILAB-PUB-24-0748-T ; ZU-TH 51/24, CERN-TH-2024-171 ; ZU-TH 51/24 ; MCNET-24-17 ; CERN-TH-2024-171.
- 46.
Fermilab Library Server - Fulltext - Fulltext
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Computing tools for effective field theories: SMEFT-Tools 2022 Workshop Report, 14–16th September 2022, Zürich / Aebischer, Jason (ed.) (Zurich U.) ; Fael, Matteo (ed.) (CERN) ; Fuentes-Martín, Javier (ed.) (CAFPE, Granada ; Granada U., Theor. Phys. Astrophys.) ; Thomsen, Anders Eller (ed.) (Basel U.) ; Virto, Javier (ed.) (U. Barcelona (main) ; Barcelona U. ; ICC, Barcelona U.) ; Allwicher, Lukas (Zurich U.) ; Das Bakshi, Supratim (CAFPE, Granada ; Granada U., Theor. Phys. Astrophys.) ; Bélusca-Maïto, Hermès (Zagreb U., Phys. Dept.) ; de Blas, Jorge (CAFPE, Granada ; Granada U., Theor. Phys. Astrophys.) ; Chala, Mikael (CAFPE, Granada ; Granada U., Theor. Phys. Astrophys.) et al.
In recent years, theoretical and phenomenological studies with effective field theories have become a trending and prolific line of research in the field of high-energy physics. In order to discuss present and future prospects concerning automated tools in this field, the SMEFT-Tools 2022 workshop was held at the University of Zurich from 14th-16th September 2022. [...]
arXiv:2307.08745.- 2024-02-19 - 115 p. - Published in : Eur. Phys. J. C 84 (2024) 170 Fulltext: document - PDF; 2307.08745 - PDF;
5.
Astrophobic Axions / Di Luzio, Luca (Durham U., IPPP) ; Mescia, Federico (ICC, Barcelona U.) ; Nardi, Enrico (Frascati) ; Panci, Paolo (CERN) ; Ziegler, Robert (CERN)
We propose a class of axion models with generation dependent Peccei-Quinn charges for the known fermions that allow to suppress the axion couplings to nucleons and electrons. Astrophysical limits are thus relaxed, allowing for axion masses up to ${\cal O}(0.1)$ eV. [...]
arXiv:1712.04940; IPPP-17-102; CERN-TH-2017-256.- 2018-06-30 - 6 p. - Published in : Phys. Rev. Lett. 120 (2018) 261803 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF;
6.
Cosmology with the Laser Interferometer Space Antenna / LISA Cosmology Working Group Collaboration
The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravitational-wave backgrounds and their implications for early universe and particle physics, from the MeV to the Planck scale. However, the range of potential cosmological applications of gravitational wave observations extends well beyond these two objectives. [...]
arXiv:2204.05434; LISA CosWG-22-03; FERMILAB-PUB-22-349-SCD.- 2023-08-28 - 176 p. - Published in : Living Rev. Relativ. 26 (2023) 5 Fulltext: jt - PDF; 2204.05434 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
7.
The strong coupling constant: State of the art and the decade ahead / d'Enterria, D. (CERN) ; Kluth, S. (Munich, Max Planck Inst.) ; Zanderighi, G. (Munich, Max Planck Inst.) ; Ayala, C. (Tarapaca U.) ; Benitez-Rathgeb, M.A. (Vienna U.) ; Bluemlein, J. (DESY, Zeuthen) ; Boito, D. (Vienna U. ; Sao Paulo U.) ; Brambilla, N. (Munich, Tech. U.) ; Britzger, D. (Munich, Max Planck Inst.) ; Camarda, S. (CERN) et al.
Theoretical predictions for particle production cross sections and decays at colliders rely heavily on perturbative Quantum Chromodynamics (QCD) calculations, expressed as an expansion in powers of the strong coupling constant $\alpha_s$. The current $\mathcal{O}(1\%)$ uncertainty of the QCD coupling evaluated at the reference Z boson mass, $\alpha_s(m_Z) = 0.1179 \pm 0.0009$, is one of the limiting factors to more precisely describe multiple processes at current and future colliders. [...]
arXiv:2203.08271; FERMILAB-CONF-22-148-T.- 2024-10-28 - 163 p.
- Published in : J. Phys. G Fulltext: jt - PDF; 2203.08271 - PDF; Fulltext from Publisher: PDF; External links: Fermilab Library Server; eConf
In : 2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.090501
8.
Early-Universe Model Building / Asadi, Pouya (MIT, Cambridge, CTP) ; Bansal, Saurabh (Cincinnati U.) ; Berlin, Asher (Fermilab ; New York U.) ; Co, Raymond T. (Minnesota U., Theor. Phys. Inst.) ; Croon, Djuna (Durham U., IPPP) ; Cui, Yanou (UC, Riverside) ; Curtin, David (Toronto U.) ; Cyr-Racine, Francis-Yan (New Mexico U.) ; Davoudiasl, Hooman (BNL, NSLS) ; Rose, Luigi Delle (Barcelona, IFAE ; BIST, Barcelona) et al.
Theoretical investigations into the evolution of the early universe are an essential part of particle physics that allow us to identify viable extensions to the Standard Model as well as motivated parameter space that can be probed by various experiments and observations. [...]
arXiv:2203.06680 ; FERMILAB-CONF-22-158-T.
- 206 p.
Fermilab Library Server - eConf - Fulltext - Fulltext
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Report from Working Group 4 : Opportunities in Flavour Physics at the HL-LHC and HE-LHC / Cerri, A. (Sussex U.) ; Gligorov, V.V. (Paris U., VI-VII) ; Malvezzi, S. (INFN, Milan Bicocca) ; Martin Camalich, J. (Laguna U., Tenerife ; IAC, La Laguna) ; Zupan, J. (Cincinnati U.) ; Akar, S. (Cincinnati U.) ; Alimena, J. (Ohio State U.) ; Allanach, B.C. (Cambridge U., DAMTP) ; Altmannshofer, W. (UC, Santa Cruz, Inst. Part. Phys.) ; Anderlini, L. (INFN, Florence) et al.
Motivated by the success of the flavour physics programme carried out over the last decade at the Large Hadron Collider (LHC), we characterize in detail the physics potential of its High-Luminosity and High-Energy upgrades in this domain of physics. We document the extraordinary breadth of the HL/HE-LHC programme enabled by a putative Upgrade II of the dedicated flavour physics experiment LHCb and the evolution of the established flavour physics role of the ATLAS and CMS general purpose experiments. [...]
arXiv:1812.07638; CERN-LPCC-2018-06.- Geneva : CERN, 2019-12-03 - 292 p. - Published in : 10.23731/CYRM-2019-007.867 Fulltext: CERN-LPCC-2018-05 - PDF; 1812.07638 - PDF;
In : HL/HE-LHC Workshop : Workshop on the Physics of HL-LHC, and Perspectives at HE-LHC, Geneva, Switzerland, 18 - 20 Jun 2018
Report on the Physics at the HL-LHC, and Perspectives for the HE-LHC, Geneva, Switzerland, 18 - 20 Jun 2018, pp.867-1158
10.
Initial State Radiation in the Herwig 7 Angular-Ordered Parton Shower / Bewick, Gavin (Durham U., IPPP) ; Ferrario Ravasio, Silvia  (Durham U., IPPP ; Oxford U., Theor. Phys.) ; Richardson, Peter (Durham U., IPPP ; CERN) ; Seymour, Michael H. (Manchester U.)
We study the simulation of initial-state radiation in angular-ordered parton showers in order to investigate how different interpretations of the ordering variable affect the logarithmic accuracy of such showers. This also enables us to implement a recoil scheme which is consistent between final-state and initial-state radiation. [...]
arXiv:2107.04051; CERN-TH-2021-103; OUTP-21-18P; MCnet-21-13; IPPP/21/05.- 2022-01-07 - 27 p. - Published in : JHEP 01 (2022) 026 Fulltext: document - PDF; 2107.04051 - PDF;

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