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Les Houches 2023: Physics at TeV Colliders: Standard Model Working Group Report
/ Andersen, J. (Durham U., IPPP) ; Assi, B. (Fermilab) ; Asteriadis, K. (Regensburg U.) ; Azzurri, P. (INFN, Pisa) ; Barone, G. (Brown U.) ; Behring, A. (CERN) ; Benecke, A. (Louvain U., CP3) ; Bhattacharya, S. (Wayne State U.) ; Bothmann, E. (Gottingen U.) ; Caletti, S. (Zurich, ETH) et al.
This report presents a short summary of the activities of the "Standard Model" working group for the "Physics at TeV Colliders" workshop (Les Houches, France, 12-30 June, 2023)..
arXiv:2406.00708 ; DESY-24-076 ; FERMILAB-CONF-24-0620-T.
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53.
Fermilab Library Server - Fulltext - Fulltext
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Self-consistent extraction of spectroscopic bounds on light new physics
/ Delaunay, Cédric (Annecy, LAPTH ; CERN) ; Karr, Jean-Philippe (Paris, Lab. Kastler Brossel ; U. Evry) ; Kitahara, Teppei (KMI, Nagoya ; KEK, Tsukuba ; Beijing, Inst. Theor. Phys.) ; Koelemeij, Jeroen C.J. (Vrije U., Amsterdam) ; Soreq, Yotam (Technion) ; Zupan, Jure (Cincinnati U.)
Fundamental physical constants are determined from a collection of precision measurements of elementary particles, atoms and molecules. This is usually done under the assumption of the Standard Model~(SM) of particle physics. [...]
arXiv:2210.10056; LAPTH-063/22; CERN-TH-2022-158; KEK-TH-2454.-
2023-03-24 - 24 p.
- Published in : Phys. Rev. Lett. 130 (2023) 121801
Fulltext: 2210.10056 - PDF; Publication - PDF;
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Les Houches 2015: Physics at TeV colliders - new physics working group report
/ Brooijmans, G. (Columbia U.) ; Delaunay, C. (Annecy, LAPTH) ; Delgado, A. (Notre Dame U.) ; Englert, C. (Glasgow U.) ; Falkowski, A. (Orsay, LPT) ; Fuks, B. (Paris, LPTHE) ; Nikitenko, S. (Imperial Coll., London) ; Sekmen, S. (CHEP, Taegu) ; Barducci, D. (Annecy, LAPTH) ; Bernon, J. (LPSC, Grenoble) et al.
We present the activities of the 'New Physics' working group for the 'Physics at TeV Colliders' workshop (Les Houches, France, 1-19 June, 2015). [...]
arXiv:1605.02684.
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2016. - 197 p.
Preprint - Full text
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Light Non-degenerate Composite Partners at the LHC
/ Delaunay, Cédric (Annecy, LAPTH ; CERN) ; Flacke, Thomas (KAIST, Taejon) ; Gonzalez-Fraile, J. (ICC, Barcelona U. ; Barcelona U., ECM) ; Lee, Seung J. (KAIST, Taejon) ; Panico, Giuliano (CERN) ; Perez, Gilad (CERN ; Weizmann Inst.)
We study the implications of a large degree of compositeness for the light generation quarks in composite pseudo-Nambu-Goldstone-boson Higgs models. We focus in particular on viable scenarios where the right-handed up-type quarks have a sizable mixing with the strong dynamics. [...]
arXiv:1311.2072; CERN-PH-TH-2013-259; LAPTH-064-13; CERN-PH-TH-2013-259; LAPTH-064-13.-
2014 - 57 p.
- Published in : JHEP 02 (2014) 055
Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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Enhanced Higgs boson coupling to charm pairs
/ Delaunay, Cédric (Annecy, LAPTH ; CERN) ; Golling, Tobias (Yale U.) ; Perez, Gilad (CERN ; Weizmann Inst.) ; Soreq, Yotam (Annecy, LAPTH)
We show that current Higgs data permit a significantly enhanced Higgs coupling to charm pairs, comparable to the Higgs to bottom pairs coupling in the Standard Model, without resorting to additional new physics sources in Higgs production. With a mild level of the latter current data even allow for the Higgs to charm pairs to be the dominant decay channel. [...]
arXiv:1310.7029; CERN-PH-TH-2013-252; LAPTH-062-13; CERN-PH-TH-2013-252; LAPTH-062-13.-
2014-02-25 - 8 p.
- Published in : Phys. Rev. D 89 (2014) 033014
APS published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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7.
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Modified Higgs Physics from Composite Light Flavors
/ Delaunay, Cédric (CERN) ; Grojean, Christophe (CERN ; Barcelona, IFAE) ; Perez, Gilad (CERN ; Weizmann Inst.)
We point out that Higgs rates into gauge bosons can be significantly modified in composite pseudo Nambu--Goldstone boson (pNGB) Higgs models if quarks belonging to the first two generation are relatively composite objects as well. Although the lightness of the latter a priori screen them from the electroweak symmetry breaking sector, we show, in an effective two-site description, that their partners can lead to order one shifts in radiative Higgs couplings to gluons and photons. [...]
arXiv:1303.5701; CERN-PH-TH-2013-045.-
2013 - 28 p.
- Published in : JHEP 09 (2013) 090
Springer Open Access article: PDF; External link: Preprint
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Implications of LHCb measurements and future prospects
/ LHCb Collaboration
During 2011 the LHCb experiment at CERN collected $1.0 {\mbox{fb}^{-1}}$ of $\sqrt{s} = 7 {\mathrm{\,Te\kern -0.1em V}}$ $pp$ collisions. Due to the large heavy quark production cross-sections, these data provide unprecedented samples of heavy flavoured hadrons. [...]
arXiv:1208.3355; LHCb-PUB-2012-006; LHCB-PAPER-2012-031; CERN-PH-EP-2012-334; LHCb-PUB-2012-006; LHCB-PAPER-2012-031; CERN-PH-EP-2012-334.-
Geneva : CERN, 2013-04-26 - 178 p.
- Published in : Eur. Phys. J. C 73 (2013) 2373
Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External links: PDF on ECONF; Proceedings write-up on ECONF
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Up Asymmetries From Exhilarated Composite Flavor Structures
/ Da Rold, Leandro (Balseiro Inst., San Carlos de Bariloche ; Centro Atomico Bariloche) ; Delaunay, Cedric (CERN) ; Grojean, Christophe (CERN) ; Perez, Gilad (Weizmann Inst. ; CERN)
We present a class of warped extra dimension (composite Higgs) models which conjointly accommodates the t\bar t forward-backward asymmetry observed at the Tevatron and the direct CP asymmetry in singly Cabibbo suppressed D decays first reported by the LHCb collaboration. We argue that both asymmetries, if arising dominantly from new physics beyond the Standard Model, hint for a flavor paradigm within partial compositeness models in which the right-handed quarks of the first two generations are not elementary fields but rather composite objects. [...]
arXiv:1208.1499; CERN-PH-TH-2012-201.-
2013 - 35 p.
- Published in : JHEP 02 (2013) 149
Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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