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CERN Document Server 2,010 elementer funnet  1 - 10nesteslutt  gå til element: Søket tok 0.46 sekunder. 
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Higgs-Stoponium Mixing Near the Stop-Antistop Threshold / Bodwin, Geoffrey T. (Argonne) ; Chung, Hee Sok (Argonne ; CERN) ; Wagner, Carlos E. M. (Argonne ; Chicago U., EFI)
Supersymmetric extensions of the standard model contain additional heavy neutral Higgs bosons that are coupled to heavy scalar top quarks (stops). This system exhibits interesting field theoretic phenomena when the Higgs mass is close to the stop-antistop production threshold. [...]
arXiv:1609.04831; CERN-TH-2016-200; EFI-16-18.- 2017-01-20 - 22 p. - Published in : Phys. Rev. D 95 (2017) 015013 Fulltext: 10.1103_PhysRevD.95.015013 - PDF; arXiv:1609.04831 - PDF; External link: Preprint
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Performance of the track selection DNN in Run 3 /CMS Collaboration
The DP-Note describes the DNN used for track selection in Run3 and shows the physics performance in Run3 simulation. The tracking efficiency, fake rate and duplicate rate are shown as a function of p$_T$, $\eta$, pileup for $t\bar{t}$ events and as a function of the track displacement for stop-antistop events..
CMS-DP-2023-009; CERN-CMS-DP-2023-009.- Geneva : CERN, 2023 - 22 p. Fulltext: PDF;
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Stop Coannihilation in the CMSSM and SubGUT Models / Ellis, John (King's Coll. London ; NICPB, Tallinn ; CERN) ; Evans, Jason L. (Korea Inst. Advanced Study, Seoul) ; Luo, Feng (Tokyo U., IPMU) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Zheng, Jiaming (Tokyo U.)
Stop coannihilation may bring the relic density of heavy supersymmetric dark matter particles into the range allowed by cosmology. The efficiency of this process is enhanced by stop-antistop annihilations into the longitudinal (Goldstone) modes of the $W$ and $Z$ bosons, as well as by Sommerfeld enhancement of stop annihilations and the effects of bound states. [...]
arXiv:1801.09855; KCL-PH-TH/2018-03; KIAS-P18010; IPMU18-0023; UMN-TH-3709/18; FTPI-MINN-18/01; KCL-PH-TH-2018-03; CERN-TH-2018-015; UMN-TH-3709-18; FTPI-MINN-18-01.- 2018-05-28 - 26 p. - Published in : Eur. Phys. J. C 78 (2018) 425 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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Axion-mediated dark matter and Higgs diphoton signal / Lee, Hyun Min (Korea Inst. Advanced Study, Seoul ; CERN) ; Park, Myeonghun (CERN) ; Park, Wan-Il (Korea Inst. Advanced Study, Seoul)
We consider axion-mediated dark matter models motivated by Fermi gamma ray line at 130 GeV, where anomaly interactions of an axion-like scalar mediate a singlet Dirac fermion dark matter (DM) to electroweak gauge bosons. In these models, extra vector-like leptons generate anomaly interactions for the axion and can also couple to the SM Higgs boson to modify the Higgs-to-diphoton rate. [...]
arXiv:1209.1955; CERN-PH-TH-2012-239.- 2012 - 29 p. - Published in : JHEP 12 (2012) 037 Springer Open Access article: PDF; External link: Preprint
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Stoponium decays to Higgs bosons / Barger, V ; Keung, W Y
MAD-PH-411.- Madison, WI : Wisconsin Univ., 1988 - 18 p. - Published in : Phys. Lett. B 211 (1988) 355
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On the validity of the CMSSM interpretation of the diphoton excess / Dreiner, Herbi K. (U. Bonn, Phys. Inst., BCTP ; Bonn U.) ; Krauss, Manuel E. (U. Bonn, Phys. Inst., BCTP ; Bonn U.) ; O'Leary, Ben (Wurzburg U.) ; Opferkuch, Toby (U. Bonn, Phys. Inst., BCTP ; Bonn U.) ; Staub, Florian (CERN)
It has been proposed that the observed diphoton excess at 750 GeV could be explained within the constrained MSSM via resonantly produced stop bound states. We reanalyse this scenario critically and extend previous work to include the constraints from the stability of the electroweak vacuum and from the decays of the stoponium into a pair of Higgs bosons. [...]
arXiv:1606.08811; CERN-TH-2016-145; BONN-TH-2016-05; CERN-TH-2016-145; BONN-TH-2016-05.- 2016-09-12 - 8 p. - Published in : Phys. Rev. D 94 (2016) 055013 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevD.94.055013 - PDF; arXiv:1606.08811 - PDF; External link: Preprint
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Probing Light Stops with Stoponium / Batell, Brian (CERN) ; Jung, Sunghoon (Korea Inst. Advanced Study, Seoul)
We derive new limits on light stops from diboson resonance searches in the $\gamma\gamma$, $Z \gamma$, $ZZ$, $WW$ and $hh$ channels from the first run of the LHC. If the two-body decays of the light stop are mildly suppressed or kinematically forbidden, stoponium bound states will form in $pp$ collisions and subsequently decay via the pair annihilation of the constituent stops to diboson final states, yielding striking resonance signatures. [...]
arXiv:1504.01740; CERN-PH-TH-2015-070; CERN-PH-TH-2015-070.- Geneva : CERN, 2015-07-13 - 36 p. - Published in : JHEP 07 (2015) 061 Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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The {\boldmath ($d$,$p$)} reaction on {\boldmath$^{206}$}Hg / Kay, B (Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Hoffman, C (Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA)
CERN-INTC-2016-024 ; INTC-P-467. - 2016.
Fulltext
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Boosted Higgses from chromomagnetic $b$'s: $b\bar{b}h$ at high luminosity / Bramante, Joseph (Notre Dame U.) ; Delgado, Antonio (CERN ; Notre Dame U.) ; Lehman, Landon (Notre Dame U.) ; Martin, Adam (Notre Dame U.)
This paper examines detection prospects and constraints on the chromomagnetic dipole operator for the bottom quark. This operator has a flavor, chirality and Lorentz structure that is distinct from other dimension six operators considered in Higgs coupling studies. [...]
arXiv:1410.3484; CERN-PH-TH-2014-179; CERN-PH-TH-2014-179.- 2016-03-01 - 14 p. - Published in : Phys. Rev. D 93 (2016) 053001 APS Open Access article: PDF; Fulltext: arXiv:1410.3484 - PDF; 10.1103_PhysRevD.93.053001 - PDF; External link: Preprint
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Natural SUSY Predicts: Higgs Couplings / Blum, Kfir (Princeton, Inst. Advanced Study) ; D'Agnolo, Raffaele Tito (CERN ; Pisa, Scuola Normale Superiore ; INFN, Pisa ; Princeton, Inst. Advanced Study) ; Fan, JiJi (Princeton U.)
We study Higgs production and decays in the context of natural SUSY, allowing for an extended Higgs sector to account for a 125 GeV lightest Higgs boson. Under broad assumptions, Higgs observables at the LHC depend on at most four free parameters with restricted numerical ranges. [...]
arXiv:1206.5303.- 2013 - 31 p. - Published in : JHEP 01 (2013) 057 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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