CERN Accelerating science

CERN Document Server 1,505 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 1.21 секунд. 
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Terrestrial Very-Long-Baseline Atom Interferometry: Summary of the Second Workshop / Abdalla, Adam (Darmstadt, Tech. Hochsch.) ; Abe, Mahiro (Stanford U., Phys. Dept.) ; Abend, Sven (Leibniz U., Hannover) ; Abidi, Mouine (Leibniz U., Hannover) ; Aidelsburger, Monika (Munich, Max Planck Inst. Quantenopt. ; Munich U. ; Munich U., ASC ; MCQST, Munich) ; Alibabaei, Ashkan (Leibniz U., Hannover) ; Allard, Baptiste (LCAR, Toulouse) ; Antoniadis, John (Athens U.) ; Arduini, Gianluigi (CERN) ; Augst, Nadja (DLR, Berlin) et al.
This summary of the second Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Workshop provides a comprehensive overview of our meeting held in London in April 2024, building on the initial discussions during the inaugural workshop held at CERN in March 2023. [...]
arXiv:2412.14960.
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Discriminating between Pseudoscalar Higgs and Toponium States at the LHC and Beyond / Djouadi, Abdelhak (Annecy, LAPP ; Granada U., Theor. Phys. Astrophys.) ; Ellis, John (King's Coll. London ; CERN) ; Quevillon, Jeremie (Annecy, LAPP)
We discuss ways to discriminate at hadron colliders between a quasi-bound toponium state and a pseudoscalar Higgs boson A, as predicted in many extensions of the Standard Model. [...]
KCL-PH-TH/2024-77 ; CERN-TH-2024-219 ; arXiv:2412.15138.
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What is the origin of the JWST SMBHs? / Ellis, John ; Fairbairn, Malcolm ; Urrutia, Juan ; Vaskonen, Ville
We present a new semi-analytical model for the evolution of galaxies and supermassive black holes (SMBHs) that is based on the extended Press-Schechter formalism and phenomenological modelling of star formation. [...]
KCL-PH-TH/2024-55 ; CERN-TH-2024-184 ; AION-REPORT/2024-05 ; arXiv:2410.24224.
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Do we owe our existence to gravitational waves? / Ellis, John (King's Coll. London ; CERN) ; Fields, Brian D. (Illinois U., Urbana) ; Surman, Rebecca (Notre Dame U.)
Two heavy elements essential to human biology are thought to have been produced by the astrophysical $r$-process, which occurs in neutron-rich environments: iodine is a constituent of thyroid hormones that affect many physiological processes including growth and development, body temperature and heart rate, and bromine is essential for tissue development and architecture. Collisions of neutron stars (kilonovae) have been identified as sources of $r$-process elements including tellurium, which is adjacent to iodine in the periodic table, and lanthanides. [...]
arXiv:2402.03593.- 2024-09-16 - 5 p. - Published in : Phys. Lett. B 858 (2024) 139028 Fulltext: 2402.03593 - PDF; Publication - PDF;
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Probing Lorentz invariance with a high-energy neutrino flare / Bustamante, Mauricio (Bohr Inst.) ; Ellis, John (King's Coll. London ; CERN) ; Konoplich, Rostislav (Manhattan Coll., Riverdale ; New York U.) ; Sakharov, Alexander S. (Manhattan Coll., Riverdale ; CERN)
Time-of-flight measurements of high-energy astrophysical neutrinos can be used to probe Lorentz invariance, a pillar of modern physics. [...]
KCL-PH-TH/2024-22 ; CERN-TH-2024-056 ; arXiv:2408.15949.
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UV Completion of Neutral Triple Gauge Couplings / Ellis, John (Shanghai Jiaotong U. ; King's Coll. London ; CERN) ; He, Hong-Jian (Shanghai Jiaotong U. ; Shanghai Jiao Tong U. ; Tsinghua U., Beijing ; Peking U., CHEP) ; Xiao, Rui-Qing (Shanghai Jiaotong U. ; King's Coll. London ; Shanghai Jiao Tong U.) ; Zeng, Shi-Ping (Shanghai Jiaotong U. ; Shanghai Jiao Tong U.) ; Zheng, Jiaming (Shanghai Jiaotong U. ; Shanghai Jiao Tong U.)
Neutral triple gauge couplings (nTGCs) are manifestation of new physics beyond the Standard Model (SM), as they are absent in the SM and are first generated by dimension-8 operators in the SM Effective Field Theory (SMEFT). [...]
KCL-PH-TH/2024-45 ; CERN-TH-2024-143 ; arXiv:2408.12508.
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Review of particle physics / Particle Data Group Collaboration
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,717 new measurements from 869 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons [...]
2024 - 2382 p. - Published in : Phys. Rev. D 110 (2024) 030001 Fulltext: PDF;
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Non-universal SUSY models, $g_\mu -2$, $m_H$ and dark matter / Ellis, John (King's Coll. London ; CERN) ; Olive, Keith A. (Minnesota U.) ; Spanos, Vassilis C. (Minnesota U. ; Athens U.)
We study the anomalous magnetic moment of the muon, $g_\mu - 2 \equiv 2 a_\mu$, in the context of supersymmetric models beyond the CMSSM, where the unification of either the gaugino masses $M_{1,2,3}$ or sfermion and Higgs masses is relaxed, taking into account the measured mass of the Higgs boson, $m_H$, the cosmological dark matter density and the direct detection rate. We find that the model with non-unified gaugino masses can make a contribution $\Delta a_\mu\sim 20 \times 10^{-10}$ to the anomalous magnetic moment of the muon, for example if $M_{1,2} \sim 600$ GeV and $M_3\sim 8$ TeV. [...]
arXiv:2407.08679; KCL-PH-TH/2024-41; CERN-TH-2024-109; UMN-TH-4325/24; FTPI-MINN-24/16.- 2024-10-28 - 22 p. - Published in : Eur. Phys. J. C 84 (2024) 1121 Fulltext: 2407.08679 - PDF; document - PDF;
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Leapfrogging into the future / Benedikt, Michael (CERN) ; Ellis, John (CERN) ; Charitos, Panagiotis (CERN) ; Liyanage, Shantha
The paper discusses the open questions in particle physics that motivate the design of a post-LHC generation of colliders and experiments that could offer answers to these questions by pushing further back the luminosity and energy frontiers. Evolution in the very early stages of the history of the Universe is still a puzzle, as is its accelerating expansion. [...]
2024 - 26 p. - Published in : 10.1093/oso/9780198881193.003.0006 Fulltext: PDF;
In : Big science, innovation, and societal contributions, pp.107-132
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In Search of the Biggest Bangs since the Big Bang / Ellis, John ; Fairbairn, Malcolm ; Urrutia, Juan ; Vaskonen, Ville
Many galaxies contain supermassive black holes (SMBHs), whose formation and history raise many puzzles. [...]
KCL-PH-TH/2024-27 ; CERN-TH-2024-058 ; AION-REPORT/2024-04 ; arXiv:2405.08522.
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