A search for a new 𝑍′ gauge boson predicted by 𝐿𝜇−𝐿𝜏 models, based on charged-current Drell–Yan production, 𝑝⁢𝑝→𝑊±(*)→𝑍′⁢𝜇±⁢𝜈→𝜇±⁢𝜇∓⁢𝜇±⁢𝜈, is presented. The data sample used corresponds to an integrated luminosity of 140  fb−1 of proton–proton collisions at √𝑠=13  TeV recorded by the ATLAS detector at the Large Hadron Collider. The search examines a final state of 3⁢𝜇 plus large missing transverse momentum. Upper limits are set on the 𝑍′ production cross section times branching ratio in the mass range of 5–81 GeV. After combining with the previous 𝑍′ search using the neutral-current Drell–Yan production with a 4⁢𝜇 final state, the most stringent exclusion limits to date are achieved in the parameter space of the 𝑍′ coupling strength and mass.

Search for a new Z′ gauge boson via the pp→W±(*)→Z′μ±ν→μ±μ∓μ±ν process in pp collisions at √s=13  TeV with the ATLAS detector / G. Aad, E.A.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 110:7(2024 Oct 01), pp. 072008.1-072008.21. [10.1103/physrevd.110.072008]

Search for a new Z′ gauge boson via the pp→W±(*)→Z′μ±ν→μ±μ∓μ±ν process in pp collisions at √s=13  TeV with the ATLAS detector

A. Andreazza;A. Carbone;L. Carminati;S. D'Auria;L. Dell'Asta;M. Fanti;M. Lazzaroni;E. Mazzeo;C. Meroni;F. Ragusa;
2024

Abstract

A search for a new 𝑍′ gauge boson predicted by 𝐿𝜇−𝐿𝜏 models, based on charged-current Drell–Yan production, 𝑝⁢𝑝→𝑊±(*)→𝑍′⁢𝜇±⁢𝜈→𝜇±⁢𝜇∓⁢𝜇±⁢𝜈, is presented. The data sample used corresponds to an integrated luminosity of 140  fb−1 of proton–proton collisions at √𝑠=13  TeV recorded by the ATLAS detector at the Large Hadron Collider. The search examines a final state of 3⁢𝜇 plus large missing transverse momentum. Upper limits are set on the 𝑍′ production cross section times branching ratio in the mass range of 5–81 GeV. After combining with the previous 𝑍′ search using the neutral-current Drell–Yan production with a 4⁢𝜇 final state, the most stringent exclusion limits to date are achieved in the parameter space of the 𝑍′ coupling strength and mass.
Extensions of gauge sector; Hypothetical gauge bosons: W & Z bosons; Hadron colliders
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
Settore IMIS-01/B - Misure elettriche ed elettroniche
1-ott-2024
15-ott-2024
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1112728
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