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Record |
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Author  |
Esser, F.; Salas-Bernardez, A.; Sanz, V.; Ubiali, M. |
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Title |
Global analysis of ALP-mediated multiboson production at the LHC |
Type |
Journal Article |
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Year |
2026 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
113 |
Issue |
9 |
Pages |
095033 - 23pp |
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Keywords |
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Abstract |
Axionlike particles (ALPs) provide a well-motivated framework for physics beyond the Standard Model, coupling to gauge bosons through dimension-five operators protected by an approximate shift symmetry. At the LHC, such interactions lead to distinctive signatures in multiboson production, where the ALP appears as an off-shell mediator rather than a narrow resonance. In this work, we present the first global and vector-boson-fusion (VBF) final states. On the theory side, motivated from a UV perspective, we assume that the ALP couples only to the gauge sector of the SM and classify the ALP-multiboson vertices that directly modify collider observables. Using Run-2 LHC measurements, we extract bounds on the Wilson coefficients (cG, c W, cB) that parametrize gluonic and electroweak ALP interactions. Our results show that the dijet channel dominates the sensitivity to ALP couplings and determines the limits on cG, while diboson and VBF processes provide complementary constraints on the electroweak couplings. We further assess the validity of the effective field theory expansion at the multi-TeV scales probed by the data. This global study provides the most comprehensive picture to date of ALP-gauge interactions from multiboson production at the LHC and highlights the opportunities for significant improvements with future high-luminosity measurements. |
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Address |
[Esser, Fabian] Charles Univ Prague, Inst Particle & Nucl Phys IPNP, Fac Math & Phys, 5Holesovickach 2, Prague 8, Czech Republic, Email: fabian.esser@matfyz.cuni.cz; |
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Publisher |
Amer Physical Soc |
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Language |
English |
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Original Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2470-0010 |
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Notes |
WOS:001782336700001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
7257 |
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