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dc.contributor.authorAad, G
dc.contributor.authorAbbott, B
dc.contributor.authorAbbott, DC
dc.contributor.authorAbud, AA
dc.contributor.authorAbeling, K
dc.contributor.authorAbhayasinghe, DK
dc.contributor.authorAbidi, SH
dc.contributor.authorAboulhorma, A
dc.contributor.authorAbramowicz, H
dc.contributor.authorAbreu, H
dc.contributor.authorAbulaiti, Y
dc.contributor.authorHoffman, ACA
dc.contributor.authorAcharya, BS
dc.contributor.authorAchkar, B
dc.contributor.authorAdam, L
dc.contributor.authorBourdarios, CA
dc.contributor.authorAdamczyk, L
dc.contributor.authorAdamek, L
dc.contributor.authorAddepalli, SV
dc.contributor.authorAdelman, J
dc.contributor.authorAdiguzel, A
dc.contributor.authorAdorni, S
dc.contributor.authorAdye, T
dc.contributor.authorAffolder, AA
dc.contributor.authorAfik, Y
dc.contributor.authorAgapopoulou, C
dc.contributor.authorAgaras, MN
dc.contributor.authorAgarwala, J
dc.contributor.authorAggarwal, A
dc.contributor.authorAgheorghiesei, C
dc.contributor.authorAguilar-Saavedra, JA
dc.contributor.authorAhmad, A
dc.contributor.authorAhmadov, F
dc.contributor.authorAhmed, WS
dc.contributor.authorAi, X
dc.contributor.authorAielli, G
dc.contributor.authorAizenberg, I
dc.contributor.authorAkatsuka, S
dc.contributor.authorAkbiyik, M
dc.contributor.authorÅkesson, TPA
dc.contributor.authorAkimov, AV
dc.contributor.authorKhoury, KA
dc.contributor.authorAlberghi, GL
dc.contributor.authorAlbert, J
dc.contributor.authorAlbicocco, P
dc.contributor.authorVerzini, MJA
dc.contributor.authorAlderweireldt, S
dc.contributor.authorAleksa, M
dc.contributor.authorAleksandrov, IN
dc.contributor.authorAlexa, C
dc.contributor.authorAlexopoulos, T
dc.contributor.authorAlfonsi, A
dc.contributor.authorAlfonsi, F
dc.contributor.authorAlhroob, M
dc.contributor.authorAli, B
dc.contributor.authorAli, S
dc.contributor.authorAliev, M
dc.contributor.authorAlimonti, G
dc.contributor.authorAllaire, C
dc.contributor.authorAllbrooke, BMM
dc.contributor.authorAllport, PP
dc.contributor.authorAloisio, A
dc.contributor.authorAlonso, F
dc.contributor.authorAlpigiani, C
dc.contributor.authorCamelia, EA
dc.contributor.authorEstevez, MA
dc.contributor.authorAlviggi, MG
dc.contributor.authorCoutinho, YA
dc.contributor.authorAmbler, A
dc.contributor.authorAmbroz, L
dc.contributor.authorAmelung, C
dc.contributor.authorAmidei, D
dc.contributor.authorSantos, SPAD
dc.contributor.authorAmoroso, S
dc.contributor.authorAmrouche, CS
dc.contributor.authorAnastopoulos, C
dc.contributor.authorAndari, N
dc.contributor.authorAndeen, T
dc.contributor.authorAnders, JK
dc.contributor.authorAndrean, SY
dc.contributor.authorAndreazza, A
dc.contributor.authorAngelidakis, S
dc.contributor.authorAngerami, A
dc.contributor.authorAnisenkov, AV
dc.contributor.authorAnnovi, A
dc.contributor.authorAntel, C
dc.contributor.authorAnthony, MT
dc.contributor.authorAntipov, E
dc.contributor.authorAntonelli, M
dc.contributor.authorAntrim, DJA
dc.contributor.authorAnulli, F
dc.contributor.authorAoki, M
dc.contributor.authorPozo, JAA
dc.contributor.authorAparo, MA
dc.contributor.authorBella, LA
dc.contributor.authorAranzabal, N
dc.contributor.authorFerraz, VA
dc.contributor.authorArcangeletti, C
dc.contributor.authorArce, ATH
dc.contributor.authorArena, E
dc.date.accessioned2022-03-31T16:29:44Z
dc.date.available2022-03-31T16:29:44Z
dc.date.issued2022
dc.date.submitted2021-09-07
dc.identifier.issn1434-6044
dc.identifier.others10052-021-09878-z
dc.identifier.other9878
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/335578
dc.description.abstractThis paper presents the measurement of the electroweak production of two jets in association with a $Z\gamma$ pair with the $Z$ boson decaying into two neutrinos. It also presents the search for invisible or partially invisible decays of a Higgs boson with a mass of 125 GeV produced through vector-boson fusion with a photon in the final state. These results use data from LHC proton-proton collisions at $\sqrt{s}$ = 13 TeV collected with the ATLAS detector corresponding to an integrated luminosity of 139 fb$^{-1}$. The event signature, shared by all benchmark processes considered for measurements and searches, is characterized by a significant amount of unbalanced transverse momentum and a photon in the final state, in addition to a pair of forward jets. For electroweak production of $Z\gamma$ in association with two jets, the background-only hypothesis is rejected with an observed (expected) significance of 5.2 (5.1) standard deviations. The measured fiducial cross-section for this process is 1.31$\pm$0.29 fb. Observed (expected) upper limit of 0.37 (0.34) at 95% confidence level is set on the branching ratio of a 125 GeV Higgs boson to invisible particles, assuming the Standard Model production cross-section. The signature is also interpreted in the context of decays of a Higgs boson to a photon and a dark photon. An observed (expected) 95% CL upper limit on the branching ratio for this decay is set at 0.018 (0.017), assuming the 125 GeV Standard Model Higgs boson production cross-section.
dc.languageen
dc.publisherSpringer Science and Business Media LLC
dc.subjectRegular Article - Experimental Physics
dc.titleObservation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 TeV with the ATLAS detector
dc.typeArticle
dc.date.updated2022-03-31T16:29:29Z
prism.issueIdentifier2
prism.publicationNameEuropean Physical Journal C
prism.volume82
dc.identifier.doi10.17863/CAM.83009
dcterms.dateAccepted2021-11-24
rioxxterms.versionofrecord10.1140/epjc/s10052-021-09878-z
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidAad, G [0000-0002-6665-4934]
dc.contributor.orcidAbbott, B [0000-0002-5888-2734]
dc.contributor.orcidAbbott, DC [0000-0002-7248-3203]
dc.contributor.orcidAbud, AA [0000-0002-2788-3822]
dc.contributor.orcidAbeling, K [0000-0002-1002-1652]
dc.contributor.orcidAbhayasinghe, DK [0000-0002-2987-4006]
dc.contributor.orcidAbidi, SH [0000-0002-8496-9294]
dc.contributor.orcidAboulhorma, A [0000-0002-9987-2292]
dc.contributor.orcidAbramowicz, H [0000-0001-5329-6640]
dc.contributor.orcidAbreu, H [0000-0002-1599-2896]
dc.contributor.orcidAbulaiti, Y [0000-0003-0403-3697]
dc.contributor.orcidHoffman, ACA [0000-0003-0762-7204]
dc.contributor.orcidAcharya, BS [0000-0002-8588-9157]
dc.contributor.orcidAchkar, B [0000-0002-0288-2567]
dc.contributor.orcidAdam, L [0000-0001-6005-2812]
dc.contributor.orcidBourdarios, CA [0000-0002-2634-4958]
dc.contributor.orcidAdamczyk, L [0000-0002-5859-2075]
dc.contributor.orcidAdamek, L [0000-0003-1562-3502]
dc.contributor.orcidAddepalli, SV [0000-0002-2919-6663]
dc.contributor.orcidAdelman, J [0000-0002-1041-3496]
dc.contributor.orcidAdiguzel, A [0000-0001-6644-0517]
dc.contributor.orcidAdorni, S [0000-0003-3620-1149]
dc.contributor.orcidAdye, T [0000-0003-0627-5059]
dc.contributor.orcidAffolder, AA [0000-0002-9058-7217]
dc.contributor.orcidAfik, Y [0000-0001-8102-356X]
dc.contributor.orcidAgapopoulou, C [0000-0002-2368-0147]
dc.contributor.orcidAgaras, MN [0000-0002-4355-5589]
dc.contributor.orcidAgarwala, J [0000-0002-4754-7455]
dc.contributor.orcidAggarwal, A [0000-0002-1922-2039]
dc.contributor.orcidAgheorghiesei, C [0000-0003-3695-1847]
dc.contributor.orcidAguilar-Saavedra, JA [0000-0002-5475-8920]
dc.contributor.orcidAhmad, A [0000-0001-8638-0582]
dc.contributor.orcidAhmadov, F [0000-0003-3644-540X]
dc.contributor.orcidAhmed, WS [0000-0003-0128-3279]
dc.contributor.orcidAi, X [0000-0003-3856-2415]
dc.contributor.orcidAielli, G [0000-0002-0573-8114]
dc.contributor.orcidAizenberg, I [0000-0003-2150-1624]
dc.contributor.orcidAkatsuka, S [0000-0002-1681-6405]
dc.contributor.orcidAkbiyik, M [0000-0002-7342-3130]
dc.contributor.orcidÅkesson, TPA [0000-0003-4141-5408]
dc.contributor.orcidAkimov, AV [0000-0002-2846-2958]
dc.contributor.orcidKhoury, KA [0000-0002-0547-8199]
dc.contributor.orcidAlberghi, GL [0000-0003-2388-987X]
dc.contributor.orcidAlbert, J [0000-0003-0253-2505]
dc.contributor.orcidAlbicocco, P [0000-0001-6430-1038]
dc.contributor.orcidVerzini, MJA [0000-0003-2212-7830]
dc.contributor.orcidAlderweireldt, S [0000-0002-8224-7036]
dc.contributor.orcidAleksa, M [0000-0002-1936-9217]
dc.contributor.orcidAleksandrov, IN [0000-0001-7381-6762]
dc.contributor.orcidAlexa, C [0000-0003-0922-7669]
dc.contributor.orcidAlexopoulos, T [0000-0002-8977-279X]
dc.contributor.orcidAlfonsi, A [0000-0001-7406-4531]
dc.contributor.orcidAlfonsi, F [0000-0002-0966-0211]
dc.contributor.orcidAlhroob, M [0000-0001-7569-7111]
dc.contributor.orcidAli, B [0000-0001-8653-5556]
dc.contributor.orcidAli, S [0000-0001-5216-3133]
dc.contributor.orcidAliev, M [0000-0002-9012-3746]
dc.contributor.orcidAlimonti, G [0000-0002-7128-9046]
dc.contributor.orcidAllaire, C [0000-0003-4745-538X]
dc.contributor.orcidAllbrooke, BMM [0000-0002-5738-2471]
dc.contributor.orcidAllport, PP [0000-0001-7303-2570]
dc.contributor.orcidAloisio, A [0000-0002-3883-6693]
dc.contributor.orcidAlonso, F [0000-0001-9431-8156]
dc.contributor.orcidAlpigiani, C [0000-0002-7641-5814]
dc.contributor.orcidEstevez, MA [0000-0002-8181-6532]
dc.contributor.orcidAlviggi, MG [0000-0003-0026-982X]
dc.contributor.orcidCoutinho, YA [0000-0002-1798-7230]
dc.contributor.orcidAmbler, A [0000-0003-2184-3480]
dc.contributor.orcidAmbroz, L [0000-0002-0987-6637]
dc.contributor.orcidAmidei, D [0000-0002-6814-0355]
dc.contributor.orcidSantos, SPAD [0000-0001-7566-6067]
dc.contributor.orcidAmoroso, S [0000-0001-5450-0447]
dc.contributor.orcidAnastopoulos, C [0000-0003-1587-5830]
dc.contributor.orcidAndari, N [0000-0002-4935-4753]
dc.contributor.orcidAndeen, T [0000-0002-4413-871X]
dc.contributor.orcidAnders, JK [0000-0002-1846-0262]
dc.contributor.orcidAndrean, SY [0000-0002-9766-2670]
dc.contributor.orcidAndreazza, A [0000-0001-5161-5759]
dc.contributor.orcidAngelidakis, S [0000-0002-8274-6118]
dc.contributor.orcidAngerami, A [0000-0001-7834-8750]
dc.contributor.orcidAnisenkov, AV [0000-0002-7201-5936]
dc.contributor.orcidAnnovi, A [0000-0002-4649-4398]
dc.contributor.orcidAntel, C [0000-0001-9683-0890]
dc.contributor.orcidAnthony, MT [0000-0002-5270-0143]
dc.contributor.orcidAntipov, E [0000-0002-6678-7665]
dc.contributor.orcidAntonelli, M [0000-0002-2293-5726]
dc.contributor.orcidAntrim, DJA [0000-0001-8084-7786]
dc.contributor.orcidAnulli, F [0000-0003-2734-130X]
dc.contributor.orcidAoki, M [0000-0001-7498-0097]
dc.contributor.orcidPozo, JAA [0000-0001-7401-4331]
dc.contributor.orcidAparo, MA [0000-0003-4675-7810]
dc.contributor.orcidBella, LA [0000-0003-3942-1702]
dc.contributor.orcidAranzabal, N [0000-0001-9013-2274]
dc.contributor.orcidFerraz, VA [0000-0003-1177-7563]
dc.contributor.orcidArcangeletti, C [0000-0001-8648-2896]
dc.contributor.orcidArce, ATH [0000-0002-7255-0832]
dc.contributor.orcidArena, E [0000-0001-5970-8677]
dc.identifier.eissn1434-6052
cam.issuedOnline2022-02-03
dc.identifier.arxiv2109.00925


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