2024-07-02 17:24 |
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2024-07-02 17:19 |
[PUBDB-2024-04938]
Contribution to a conference proceedings
Jeppe, L. ; CMS Collaboration
Distinguishing Axion-Like Particles and 2HDM Higgs bosons in tt¯ production at the LHC
2024European Physical Society Conference on High Energy Physics 2023, EPS-HEP2023, HamburgHamburg, Germany, 21 Aug 2023 - 25 Aug 20232023-08-212023-08-25
474 pp. (2024) [https://doi.org/10.22323/1.449.0474 ]2024
We present an analysis of the sensitivityof LHC searches for new spin-0 particlesproduced via gluon-fusion and decaying intotop-antitop-quark (tt¯) final statesto generic axion-like particles (ALPs)coupled to top-quarks and gluons.We derive new limits on the effective ALPLagrangian in the linear representationin terms of the Wilsoncoefficients ct and cG~based on the existingCMS search using 35 fb−1 of proton-proton scattering data collectedat s√=13 TeV.We further investigate posssible distinctions between ALPs and pseudoscalarHiggs bosons as predicted by the Two Higgs doublet model (2HDM), andfind that a distinction is possiblewith data anticipated to be collectedduring the high-luminosity phase of the LHCfor a significant range of the effective ALP-gluon coupling..
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2024-07-02 17:10 |
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2024-07-02 17:06 |
[PUBDB-2024-04936]
Contribution to a conference proceedings
Komm, M.
Searches for Heavy Neutral Leptons in CMS
2024European Physical Society Conference on High Energy Physics, EPS-HEP2023, HamburgHamburg, Germany, 21 Aug 2023 - 25 Aug 20232023-08-212023-08-25
452 pp. (2024) [https://doi.org/10.22323/1.449.0452 ]2024
In this note, recent results on searches for heavy neutral leptons (HNLs) with the CMS experiment at 13 TeV are reviewed. Various phenomenological models predict HNLs as a compelling extension to the standard model. [...]
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2024-07-02 17:03 |
[PUBDB-2024-04935]
Contribution to a conference proceedings
Correia Silva, G. ; CMS Collaboration
Searches for additional Higgs bosons at CMS
2024European Physical Society Conference on High Energy Physics, EPS-HEP2023, HamburgHamburg, Germany, 21 Aug 2023 - 25 Aug 20232023-08-212023-08-25
403 pp. (2024) [https://doi.org/10.22323/1.449.0403]2024
The discovery of a Higgs boson with a mass of about 125 GeV by the ATLAS and CMS experiments at the LHC in 2012 validated the standard model (SM) mechanism in which the particles acquire mass through the spontaneous breaking of the electroweak symmetry. The measurements of the Higgs boson properties are, so far, consistent with the expectations of the standard model. [...]
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2024-07-02 16:58 |
[PUBDB-2024-04934]
Contribution to a conference proceedings
Becerril Gonzalez, H. A. ; CMS Collaboration
Diversity and Inclusion in the CMS experiment
2024European Physical Society Conference on High Energy Physics, EPS-HEP2023, HamburgHamburg, Germany, 21 Aug 2023 - 25 Aug 20232023-08-212023-08-25
642 pp. (2024) [https://doi.org/10.22323/1.449.0642]2024
The CMS experiment is one of the largest international scientific collaborations in history, involving more than 6000 particle physicists, engineers, technicians, students and support staff from 257 institutes in 59 countries, therefore, the CMS collaboration is inherently a diverse and unique scientific environment. In this report we present statistical information related to diversity in CMS with data collected between 2016-2018. [...]
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2024-07-02 16:55 |
[PUBDB-2024-04933]
Contribution to a conference proceedings
Zimermmane Castro Santos, A. ; CMS Collaboration
EFT constraints from top quark measurements in CMS
2024European Physical Society Conference on High Energy Physics, EPS-HEP2023, HamburgHamburg, Germany, 21 Aug 2023 - 25 Aug 20232023-08-212023-08-25
293 pp. (2024) [https://doi.org/10.22323/1.449.0293]2024
Effective Field Theories (EFTs) offer a systematic way of parametrising small deviations from the Standard Model (SM) originating from new phenomena. In the top quark sector, by using the full potential of the second run of the LHC, the CMS Collaboration is able to perform precision measurements of well-studied top interactions as well as measure rarer top processes. [...]
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2024-07-02 16:52 |
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2024-07-02 16:45 |
[PUBDB-2024-04931]
Contribution to a conference proceedings
Bhattacharya, S.
Supersymmetry searches with heavy object tagging and tau leptons in CMS
2024European Physical Society Conference on High Energy Physics, EPS-HEP2023, HamburgHamburg, Germany, 21 Aug 2023 - 25 Aug 20232023-08-212023-08-25
455 pp. (2024)2024
There has been significant progress in the recent past on the usage of sophisticated machine learning techniques for the tagging of hadronically decaying heavy objects with large-radius jets, and the identification of tau leptons decaying to hadrons. These techniques have revolutionized searches for Supersymmetry at the LHC. [...]
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2024-06-18 10:07 |
[PUBDB-2024-04754]
Contribution to a conference proceedings/Journal Article
Günther, G. ; Baunack, S. ; Capozza, L. ; et al
IR of FAIR - Principles at the Instrument Level
202319th Biennial International Conference on Accelerator and Large Experimental Physics Control Systems, ICALEPCS 2023, Cape TownCape Town, South Africa, 7 Oct 2023 - 13 Oct 20232023-10-072023-10-13
JACoW ICALEPCS2023 WE3BCO09, 1046 - 1050 (2023) [10.18429/JACoW-ICALEPCS2023-WE3BCO09]2023
Awareness of the need for FAIR data management has increased in recent years but examples of how to achieve this are often missing. Focusing on the large-scale instrument A4 at the MAMI accelerator, we transfer findings of the EMIL project at the BESSY synchrotron* to improve raw data, i.e. [...]
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