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CERN Document Server 17 のレコードが見つかりました。  1 - 10次  レコードへジャンプ: 検索にかかった時間: 0.51 秒 
1.
Mixed NNLO QCD × electroweak corrections to single-Z production in pole approximation: differential distributions and forward-backward asymmetry / Dittmaier, Stefan (Freiburg U.) ; Huss, Alexander (CERN) ; Schwarz, Jan (Freiburg U.)
Radiative corrections in pole approximation, which are based on the leading contribution in a systematic expansion of amplitudes about resonance poles, naturally decompose into factorizable corrections attributed to the production or decay of the resonance and non-factorizable corrections induced by soft photon (or gluon) exchange between those subprocesses. In this paper we complete an earlier calculation of mixed QCD$\times$electroweak corrections of $\mathcal{O}(\alpha_s\alpha)$ to the neutral-current Drell-Yan cross section in pole approximation by including the previously neglected corrections that are solely related to the Z-boson production process. [...]
arXiv:2401.15682; FR-PHENO-2024-01; CERN-TH-2024-001.- 2024-05-14 - 42 p. - Published in : JHEP 2405 (2024) 170 Fulltext: document - PDF; 2401.15682 - PDF;
2.
Focus topics for the ECFA study on Higgs / Top / EW factories / de Blas, Jorge (Granada U.) ; Koppenburg, Patrick (Nikhef, Amsterdam) ; List, Jenny (DESY) ; Maltoni, Fabio (Louvain U.) ; Maestre, Juan Alcaraz (Madrid, CIEMAT) ; Alimena, Juliette (DESY) ; Alison, John (Carnegie Mellon U.) ; Azzi, Patrizia (INFN, Padua) ; Azzurri, Paolo (INFN, Pisa) ; Bagnaschi, Emanuele (CERN ; INFN, Italy) et al.
In order to stimulate new engagement and trigger some concrete studies in areas where further work would be beneficial towards fully understanding the physics potential of an $e^+e^-$ Higgs / Top / Electroweak factory, we propose to define a set of focus topics. [...]
arXiv:2401.07564.
- 65.
Fulltext
3.
Vector Boson Scattering Processes: Status and Prospects / Buarque Franzosi, Diogo (Chalmers U. Tech. ; Goteborg, ITP) ; Gallinaro, Michele (LIP, Lisbon) ; Ruiz, Richard (Cracow, INP) ; Aarrestad, Thea K. (CERN) ; Cetorelli, Flavia (Milan U. ; INFN, Milan Bicocca) ; Chiesa, Mauro (Pavia U.) ; Costantini, Antonio (Louvain U., CP3) ; Denner, Ansgar (Wurzburg U.) ; Dittmaier, Stefan (Freiburg U.) ; Franken, Robert (Wurzburg U.) et al.
Insight into the electroweak (EW) and Higgs sectors can be achieved through measurements of vector boson scattering (VBS) processes. The scattering of EW bosons are rare processes that are precisely predicted in the Standard Model (SM) and are closely related to the Higgs mechanism. [...]
arXiv:2106.01393; CP3-21-14; DESY-21-064; IFJPAN-IV-2021-8; PITT-PACC-2106, VBSCAN-PUB-04-21; PITT-PACC-2106, VBSCAN-PUB-04-21.- 2022-06 - 61 p. - Published in : Rev. Phys. 8 (2022) 100071 Fulltext: PDF;
In : 2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021
4.
Mixed NNLO QCD×electroweak corrections of $\mathcal{O}(N_f \alpha_s \alpha)$ to single-W/Z production at the LHC / Dittmaier, Stefan (Freiburg U.) ; Schmidt, Timo (Wurzburg U.) ; Schwarz, Jan (Freiburg U.)
First results on the radiative corrections of order O(N_f\alpha_s\alpha) are presented for the off-shell production of W or Z bosons at the LHC, where N_f is the number of fermion flavours. These corrections comprise all diagrams at O(\alpha_s\alpha) with closed fermion loops, form a gauge-invariant part of the next-to-next-to-leading-order corrections of mixed QCD x electroweak type, and are the ones that concern the issue of mass renormalization of the W and Z resonances. [...]
arXiv:2009.02229; FR-PHENO-2020-005.- 2020-12-30 - 40 p. - Published in : JHEP 2012 (2020) 201 Article from SCOAP3: PDF; Fulltext: PDF;
5.
Precise predictions for same-sign W-boson scattering at the LHC / Ballestrero, Alessandro (INFN, Turin) ; Biedermann, Benedikt (Wurzburg U.) ; Brass, Simon (Siegen U.) ; Denner, Ansgar (Wurzburg U.) ; Dittmaier, Stefan (Freiburg U.) ; Frederix, Rikkert (Munich, Tech. U.) ; Govoni, Pietro (INFN, Milan Bicocca ; Milan U.) ; Grossi, Michele (Pavia U. ; INFN, Pavia) ; Jäger, Barbara (Tubingen U.) ; Karlberg, Alexander (Zurich U.) et al.
Vector-boson scattering processes are of great importance for the current run-II and future runs of the Large Hadron Collider. The presence of triple and quartic gauge couplings in the process gives access to the gauge sector of the Standard Model (SM) and possible new-physics contributions there. [...]
arXiv:1803.07943; DESY-18-025; FR-PHENO-2018-003; KA-TP-05-2018; MCNET-18-06; NIKHEF-2018-012; UWTHPH-2018-12; VBSCAN-PUB-01-18; ZU-TH-08-18; DESY 18-025; FR-PHENO-2018-003; KA-TP-05-2018; MCnet-18-06, Nikhef/2018-012; UWTHPH-2018-12; VBSCan-PUB-01-18; ZU-TH-08/18.- 2018-08-22 - 25 p. - Published in : Eur. Phys. J. C 78 (2018) 671 Article from SCOAP3: PDF; Fulltext: arXiv:1803.07943 - PDF; 1803.07943 - PDF;
6.
Electroweak Corrections at High Energies / Mishra, Kalanand (Fermilab) ; Becher, Thomas (Bern U.) ; Barze, Luca (CERN) ; Chiesa, Mauro (Pavia U. ; INFN, Pavia) ; Dittmaier, Stefan (Freiburg U.) ; Garcia i Tormo, Xavier (Bern U.) ; Huss, Alexander (Freiburg U.) ; Kasprzik, Tobias (KIT, Karlsruhe, TTP) ; Li, Ye (SLAC) ; Montagna, Guido (Pavia U. ; INFN, Pavia) et al.
We present a survey of the most abundant processes at the LHC for sensitivity to electroweak corrections at \sqrt{s} = 8, 14, 33, and 100 TeV proton-proton collision energies. [...]
arXiv:1308.1430 ; FERMILAB-CONF-13-514-CMS.
- 2013. - 13 p.
FERMILABCONF - Full text - Fulltext
7.
Gluon-induced Higgs-strahlung at next-to-leading order QCD / Altenkamp, Lukas (Freiburg U.) ; Dittmaier, Stefan (Freiburg U.) ; Harlander, Robert V. (Wuppertal U.) ; Rzehak, Heidi (CERN ; Freiburg U.) ; Zirke, Tom J.E. (Wuppertal U.)
Gluon-induced contributions to the associated production of a Higgs and a Z-boson are calculated with NLO accuracy in QCD. They constitute a significant contribution to the cross section for this process. [...]
arXiv:1211.5015; CERN-PH-TH-2012-312; FR-PHENO-2012-023; WUB-12-21; CERN-PH-TH-2012-312; FR-PHENO-2012-023; WUB-12-21.- 2013 - 30 p. - Published in : JHEP 02 (2013) 078 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
8.
Production of $t \bar{t} b \bar{b}$ at the LHC at NLO QCD / Bredenstein, Axel (KEK, Tsukuba) ; Denner, Ansgar (PSI, Villigen) ; Dittmaier, Stefan (Freiburg U.) ; Pozzorini, Stefano (CERN)
We summarise predictions for top anti-top bottom anti-bottom (tTbB) production at the LHC in next-to-leading order QCD. The precise description of this background process is a prerequisite to observe associated top anti-top Higgs production in the H -> bottom anti-bottom decay channel. [...]
arXiv:1006.2653.- 2010 - 7 p.
Fulltext: PDF; External link: Preprint
In : 10th DESY workshop on elementary particle theory: loops and legs in quantum field theory, Wörlitz, Germany, 25 - 30 Apr 2010, pp.80-85
9.
NLO QCD corrections to top anti-top bottom anti-bottom production at the LHC / Bredenstein, Axel (KEK, Tsukuba) ; Denner, Ansgar (PSI, Villigen) ; Dittmaier, Stefan (Freiburg U.) ; Pozzorini, Stefano (CERN)
The next-to-leading order (NLO) QCD corrections to top anti-top bottom anti-bottom (tTbB) production at the LHC reveal that the scale choice adopted in previous lowest-order simulations underestimates the tTbB cross section by a factor two. We discuss a new dynamical scale that stabilizes the perturbative predictions and describe the impact of the corrections on the shape of distributions. [...]
arXiv:1001.4727; FR-PHENO-2010-11; PSI-PR-10-07; CERN-PH-TH-2009-018; FR-PHENO-2010-11; PSI-PR-10-07; CERN-PH-TH-2010-018.- 2010 - 7 p.
- Published in : PoS: RADCOR2009 (2010) , pp. 004 Fulltext: PDF; External link: Preprint
In : 9th International Symposium On Radiative Corrections : applications Of Quantum Field Theory To Phenomenology, Ascona, Switzerland, 25 Oct - 30 Oct 2009, pp.004
10.
NLO QCD corrections to top anti-top bottom anti-bottom production at the LHC: 2. full hadronic results / Bredenstein, Axel (KEK, Tsukuba) ; Denner, Ansgar (PSI, Villigen) ; Dittmaier, Stefan (Freiburg U.) ; Pozzorini, Stefano (CERN)
We present predictions for top anti-top bottom anti-bottom production at the LHC in next-to-leading order QCD. The precise description of this background process is a prerequisite to observe associated top anti-top Higgs production in the Higgs -> bottom anti-bottom decay channel and to directly measure the top-quark Yukawa coupling at the LHC. [...]
arXiv:1001.4006; CERN-PH-TH-2010-008; FR-PHENO-2010-003; PSI-PR-10-02; CERN-PH-TH-2009-008-[SIC!]; FR-PHENO-2010-003; PSI-PR-10-02; CERN-PH-TH-2010-008.- 2010 - 42 p. - Published in : JHEP 03 (2010) 021 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint

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