Probing axionlike particles with 
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 final states from vector boson fusion processes at the LHC

Florez, C.; Gurrola, A.; Johns, W.; Sheldon, P.; Sheridan, Elijah; Sinha, Kuver; Soubasis, B.

doi:10.1103/physrevd.103.095001

Cited by 25 publications

(12 citation statements)

References 62 publications

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“…The sensitivity of the W ± γ channel is reduced by the smaller integrated luminosity of the published CMS analysis. A measurement of the γγ VBS final state at large diphoton invariant masses, that has not been performed by ATLAS or CMS to date, would bring additional sensitivity to c B , with a great potential for improving the current bounds [34].…”

Section: Results From Lhc Run 2 Measurementsmentioning

confidence: 99%

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Nonresonant Searches for Axion-Like Particles in Vector Boson Scattering Processes at the LHC

Bonilla,

Brivio,

Machado-Rodríguez

et al. 2022

Preprint

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We propose a new search for Axion-Like Particles (ALPs), targeting Vector Boson Scattering (VBS) processes at the LHC. We consider nonresonant ALP-mediated VBS, where the ALP participates as an off-shell mediator. This process occurs whenever the ALP is too light to be produced resonantly, and it takes advantage of the derivative nature of ALP interactions with the electroweak Standard Model bosons. We study the production of ZZ, Zγ, W ± γ, W ± Z and W ± W ± pairs with large diboson invariant masses in association with two jets. Working in a gauge-invariant framework, upper limits on ALP couplings to electroweak bosons are obtained from a reinterpretation of Run 2 public CMS VBS analyses. The constraints inferred on ALP couplings to ZZ, Zγ and W ± W ± pairs are very competitive for ALP masses up to 100 GeV. They have the advantage of being independent of the ALP coupling to gluons and of the ALP decay width. Simple projections for LHC Run 3 and HL-LHC are also calculated, demonstrating the power of future dedicated analyses at ATLAS and CMS.

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Section: Results From Lhc Run 2 Measurementsmentioning

confidence: 99%

“…We focus on channels containing massive EW bosons: ALP EW VBS processes with the ALP going to a photon pair were studied in Ref. [34] for the LHC and in Ref. [35] for CLIC.…”

Section: Introductionmentioning

confidence: 99%

Nonresonant Searches for Axion-Like Particles in Vector Boson Scattering Processes at the LHC

Bonilla,

Brivio,

Machado-Rodríguez

et al. 2022

Preprint

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“…Therefore the remaining light mass eigenstate will approximately be pure S I or T 0 I . As this model contains possibly light, CP -odd states that decay to bosons, certain scenarios could in principle allow for axion or axion-like particle searches [35,36] to be relevant, though we do not consider any such scenarios here. As noted previously, the pseudoscalar adjoints do not couple to gluons at one loop, so the production cross section is dominated by quark fusion in the case of T 0 I or vector boson fusion/associated production in the case of S I .…”

Section: Jhep02(2022)102mentioning

confidence: 99%

Exploring the phenomenology of weak adjoint scalars in minimal R-symmetric models

Carpenter

Smylie

2022

J. High Energ. Phys.

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We examine the phenomenology of the scalar fields in weak and Higgs sectors of minimal R-symmetric models, in particular the ‘swino’ and ‘sbino’, the scalar partners to the chiral fields that marry the electroweak gauge bosons in Dirac gaugino models. These fields are in adjoint representations of SU(2) and U(1) and have both CP-even and CP-odd components. The interactions of these new states are summarized, and decay widths are computed analytically to one loop order. We discuss the tree level contributions of these new states to the mass spectrum of MSSM sfermions. We also explore production cross sections and decay signatures at colliders for several chosen benchmarks. We find that large regions of parameter space are unconstrained by present collider data.

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“…We see that without the 2-loop contribution (or g γγ a → 0) the values of ∆a e would be negative and therefore the new determination of the fine structure constant demands sizable two loop corrections for the axion contributions to be consistent with ∆a e . Upper bounds on the couplings of the axion to vector bosons from LEP and LHC have also been explored in various realizations of axions and ALPS [39][40][41][42][43]. However, those bounds are based on the assumption of an axion which mostly decay into photons, contrary to our model in which the dominant axion decay is into electron pairs.…”

Section: Jhep05(2021)138mentioning

confidence: 99%

Challenges for a QCD axion at the 10 MeV scale

Liu

McGinnis

Wagner

et al. 2021

J. High Energ. Phys.

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We report on an interesting realization of the QCD axion, with mass in the range $$ \mathcal{O} $$ O (10) MeV. It has previously been shown that although this scenario is stringently constrained from multiple sources, the model remains viable for a range of parameters that leads to an explanation of the Atomki experiment anomaly. In this article we study in more detail the additional constraints proceeding from recent low energy experiments and study the compatibility of the allowed parameter space with the one leading to consistency of the most recent measurements of the electron anomalous magnetic moment and the fine structure constant. We further provide an ultraviolet completion of this axion variant and show the conditions under which it may lead to the observed quark masses and CKM mixing angles, and remain consistent with experimental constraints on the extended scalar sector appearing in this Standard Model extension. In particular, the decay of the Standard Model-like Higgs boson into two light axions may be relevant and leads to a novel Higgs boson signature that may be searched for at the LHC in the near future.

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Probing axionlike particles with γγ final states from vector boson fusion processes at the LHC

Cited by 25 publications

References 62 publications

Nonresonant Searches for Axion-Like Particles in Vector Boson Scattering Processes at the LHC

Nonresonant Searches for Axion-Like Particles in Vector Boson Scattering Processes at the LHC

Exploring the phenomenology of weak adjoint scalars in minimal R-symmetric models

Challenges for a QCD axion at the 10 MeV scale

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