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Анисёнков АВ, Балдин ЕМ, Белобородов КИ, Бобровников ВС, Bogdanchikov AG, Бузыкаев АР et al. A search for an unexpected asymmetry in the production of e+μ− and e−μ+ pairs in proton–proton collisions recorded by the ATLAS detector at s=13 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2022 Jul 10;830:137106. doi: 10.1016/j.physletb.2022.137106

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@article{7402aadfdfe843bc86999318aaacc8f2,
title = "A search for an unexpected asymmetry in the production of e+μ− and e−μ+ pairs in proton–proton collisions recorded by the ATLAS detector at s=13 TeV",
abstract = "This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for e+μ− and e−μ+ pairs to constrain physics processes beyond the Standard Model. It uses 139fb−1 of proton–proton collision data recorded at s=13 TeV at the LHC. Targeting sources of new physics which prefer final states containing e+μ− to e−μ+, the search contains two broad signal regions which are used to provide model-independent constraints on the ratio of cross sections at the 2% level. The search also has two special selections targeting supersymmetric models and leptoquark signatures. Observations using one of these selections are able to exclude, at 95% confidence level, singly produced smuons with masses up to 640 GeV in a model in which the only other light sparticle is a neutralino when the R-parity-violating coupling λ231′ is close to unity. Observations using the other selection exclude scalar leptoquarks with masses below 1880 GeV when g1Reu=g1Rμc=1, at 95% confidence level. The limit on the coupling reduces to g1Reu=g1Rμc=0.46 for a mass of 1420 GeV.",
author = "Анисёнков, {Алексей Владимирович} and Балдин, {Евгений Михайлович} and Белобородов, {Константин Иванович} and Бобровников, {Виктор Сергеевич} and Bogdanchikov, {A. G.} and Бузыкаев, {Алексей Рафаилович} and Казанин, {Василий Федорович} and Харламов, {Алексей Георгиевич} and Харламова, {Татьяна Александровна} and Масленников, {Алексей Леонидович} and Максимов, {Дмитрий Александрович} and Пелеганчук, {Сергей Владимирович} and Подберёзко, {Павел Сергеевич} and Резанова, {Ольга Леонардовна} and Сухарев, {Андрей Михайлович} and Талышев, {Алексей Александрович} and Тихонов, {Юрий Анатольевич} and Жуланов, {Владимир Викторович}",
note = "This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for e+μ− and e−μ+ pairs to constrain physics processes beyond the Standard Model. It uses 139fb−1 of proton–proton collision data recorded at s=13 TeV at the LHC. Targeting sources of new physics which prefer final states containing e+μ− to e−μ+, the search contains two broad signal regions which are used to provide model-independent constraints on the ratio of cross sections at the 2% level. The search also has two special selections targeting supersymmetric models and leptoquark signatures. Observations using one of these selections are able to exclude, at 95% confidence level, singly produced smuons with masses up to 640 GeV in a model in which the only other light sparticle is a neutralino when the R-parity-violating coupling λ231 ′ is close to unity. Observations using the other selection exclude scalar leptoquarks with masses below 1880 GeV when g1R eu=g1R μc=1, at 95% confidence level. The limit on the coupling reduces to g1R eu=g1R μc=0.46 for a mass of 1420 GeV.",
year = "2022",
month = jul,
day = "10",
doi = "10.1016/j.physletb.2022.137106",
language = "English",
volume = "830",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - A search for an unexpected asymmetry in the production of e+μ− and e−μ+ pairs in proton–proton collisions recorded by the ATLAS detector at s=13 TeV

AU - Анисёнков, Алексей Владимирович

AU - Балдин, Евгений Михайлович

AU - Белобородов, Константин Иванович

AU - Бобровников, Виктор Сергеевич

AU - Bogdanchikov, A. G.

AU - Бузыкаев, Алексей Рафаилович

AU - Казанин, Василий Федорович

AU - Харламов, Алексей Георгиевич

AU - Харламова, Татьяна Александровна

AU - Масленников, Алексей Леонидович

AU - Максимов, Дмитрий Александрович

AU - Пелеганчук, Сергей Владимирович

AU - Подберёзко, Павел Сергеевич

AU - Резанова, Ольга Леонардовна

AU - Сухарев, Андрей Михайлович

AU - Талышев, Алексей Александрович

AU - Тихонов, Юрий Анатольевич

AU - Жуланов, Владимир Викторович

N1 - This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for e+μ− and e−μ+ pairs to constrain physics processes beyond the Standard Model. It uses 139fb−1 of proton–proton collision data recorded at s=13 TeV at the LHC. Targeting sources of new physics which prefer final states containing e+μ− to e−μ+, the search contains two broad signal regions which are used to provide model-independent constraints on the ratio of cross sections at the 2% level. The search also has two special selections targeting supersymmetric models and leptoquark signatures. Observations using one of these selections are able to exclude, at 95% confidence level, singly produced smuons with masses up to 640 GeV in a model in which the only other light sparticle is a neutralino when the R-parity-violating coupling λ231 ′ is close to unity. Observations using the other selection exclude scalar leptoquarks with masses below 1880 GeV when g1R eu=g1R μc=1, at 95% confidence level. The limit on the coupling reduces to g1R eu=g1R μc=0.46 for a mass of 1420 GeV.

PY - 2022/7/10

Y1 - 2022/7/10

N2 - This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for e+μ− and e−μ+ pairs to constrain physics processes beyond the Standard Model. It uses 139fb−1 of proton–proton collision data recorded at s=13 TeV at the LHC. Targeting sources of new physics which prefer final states containing e+μ− to e−μ+, the search contains two broad signal regions which are used to provide model-independent constraints on the ratio of cross sections at the 2% level. The search also has two special selections targeting supersymmetric models and leptoquark signatures. Observations using one of these selections are able to exclude, at 95% confidence level, singly produced smuons with masses up to 640 GeV in a model in which the only other light sparticle is a neutralino when the R-parity-violating coupling λ231′ is close to unity. Observations using the other selection exclude scalar leptoquarks with masses below 1880 GeV when g1Reu=g1Rμc=1, at 95% confidence level. The limit on the coupling reduces to g1Reu=g1Rμc=0.46 for a mass of 1420 GeV.

AB - This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for e+μ− and e−μ+ pairs to constrain physics processes beyond the Standard Model. It uses 139fb−1 of proton–proton collision data recorded at s=13 TeV at the LHC. Targeting sources of new physics which prefer final states containing e+μ− to e−μ+, the search contains two broad signal regions which are used to provide model-independent constraints on the ratio of cross sections at the 2% level. The search also has two special selections targeting supersymmetric models and leptoquark signatures. Observations using one of these selections are able to exclude, at 95% confidence level, singly produced smuons with masses up to 640 GeV in a model in which the only other light sparticle is a neutralino when the R-parity-violating coupling λ231′ is close to unity. Observations using the other selection exclude scalar leptoquarks with masses below 1880 GeV when g1Reu=g1Rμc=1, at 95% confidence level. The limit on the coupling reduces to g1Reu=g1Rμc=0.46 for a mass of 1420 GeV.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85151987732&origin=inward&txGid=18cd38b3e2acb0252423972ef65e8124

UR - https://www.mendeley.com/catalogue/a8024d4e-65e6-3bc9-90b7-6bfcf5c58fee/

U2 - 10.1016/j.physletb.2022.137106

DO - 10.1016/j.physletb.2022.137106

M3 - Article

VL - 830

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

M1 - 137106

ER -

ID: 55726253