2024-07-03 15:09 |
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2024-07-03 15:02 |
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2024-07-02 17:24 |
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2024-07-02 17:19 |
[PUBDB-2024-04938]
Journal Article/Contribution to a conference proceedings/Contribution to a book
Biekötter, A. ; Biekötter, T. ; Grohsjean, A. ; et al
Distinguishing Axion-Like Particles and 2HDM Higgs bosons in $t \bar{t}$ production at the LHC
We present an analysis of the sensitivityof LHC searches for new spin-0 particlesproduced via gluon-fusion and decaying intotop-antitop-quark ($t\bar{t}$) 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 $c_{t}$ and $c_{\tilde{G}}$based on the existingCMS search using $35$ fb$^{-1}$ of proton-proton scattering data collectedat $\sqrt{s} = 13$ TeV. We further investigate posssible distinctions between ALPs and pseudoscalarHiggs bosons as predicted by the Two Higgs doublet model (2HDM), and find 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..
OpenAccess: PDF PDF (PDFA); External link: Fulltext
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2024-07-02 17:10 |
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2024-07-02 17:06 |
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2024-07-02 17:03 |
[PUBDB-2024-04935]
Journal Article/Contribution to a conference proceedings
Correia Silva, G. ; CMS Collaboration
Searches for additional Higgs bosons at CMS
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. [...]
OpenAccess: PDF PDF (PDFA); External link: Fulltext
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2024-07-02 16:58 |
[PUBDB-2024-04934]
Journal Article/Contribution to a conference proceedings
Becerril Gonzalez, H. A. ; CMS Collaboration
Diversity and Inclusion in the CMS experiment
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. [...]
OpenAccess: PDF PDF (PDFA); External link: Fulltext
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2024-07-02 16:55 |
[PUBDB-2024-04933]
Journal Article/Contribution to a conference proceedings
Zimermmane Castro Santos, A. ; CMS Collaboration
EFT constraints from top quark measurements in CMS
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. [...]
OpenAccess: PDF PDF (PDFA); External link: Fulltext
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2024-07-02 16:52 |
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