Müon-Proton Çarpıştırıcılarında Anormal Yüksüz Üçlü Ayar Bağlaşımların Araştırılması

Sekiz boyutlu operatörlere karşılık gelen anormal ZZγ, Zγγ ve ZZZ nötr üçlü ayar bağlaşımları, 24.5 TeV kütle merkezi enerjili FCC-µp ve 20.2 TeV kütle merkezi enerjili SPPC-µp müon-proton çarpıştırıcılarında μ^- p→Zqμ^-→νν ̅qμ^- süreci ile araştırılmıştır. Analizde sürecin son durumuna uygulanan kesilimler ile sinyal-arka plan oranı arttırılmıştır. FCC-µp ve SPPC-µp çarpıştırıcılarında sırasıyla L_int=5 ve 42.8 fb-1 ışınlılık ile anormal bağlaşım limitleri, %95 Güvenilirlik Düzeyinde (C.L.) sistematik belirsizlikler %0, %3 ve %5 ile elde edilmiştir. FCC-µp ve SPPC-µp çarpıştırıcılarında sistematik belirsizlik olmaksızın anormal C_BB/Λ^4, C_BW/Λ^4, C_WW/Λ^4, C_(B ̃W)/Λ^4 bağlaşımlarının limitleri, sırasıyla [-0.11923; 0.11967] TeV-4, [-0.33825; 0.33851] TeV-4, [-0.38075; 0.38190] TeV-4, [-0.21641; 0.21808] TeV-4 ve [-0.10842; 0.10602] TeV-4, [-0.29781; 0.29689] TeV-4, [-0.33817; 0.33843] TeV-4, [-0.18948; 0.19214] TeV-4 olarak bulunmuştur ve limitlerin duyarlılıkları karşılaştırılmıştır.

Anahtar Kelimeler:

Elektrozayıf Etkileşim, Standart Model Ötesi Modeller, Müon-Proton Çarpıştırıcısı, Anormal Nötr Üçlü Ayar Bağlaşımları

Investigation of Anomalous Neutral Triple Gauge Couplings at Muon-Proton Colliders

Anomalous ZZγ, Zγγ and ZZZ neutral triple gauge couplings corresponding to dimension-eight operators are investigated by the process μ^- p→Zqμ^-→νν ̅qμ^- at muon-proton colliders as the FCC-µp with 24.5 TeV center-of-mass energy and the SPPC-µp with 20.2 TeV center-of-mass energy. In the analysis, the signal-to-background ratio is increased with the applied cuts to the final state of the process. Limits of anomalous coupling with integrated luminosities of L_int=5 and 42.8 fb-1, respectively, at FCC-µp and SPPC-µp colliders are obtained with systematic uncertainties of 0%, 3%, and 5% at 95% Confidence Level (C.L.). The limits of anomalous C_BB/Λ^4, C_BW/Λ^4, C_WW/Λ^4, C_(B ̃W)/Λ^4 couplings without systematic uncertainty at FCC-µp and SPPC-µp colliders are [-0.11923; 0.11967] TeV-4, [-0.33825; 0.33851] TeV-4, [-0.38075; 0.38190] TeV-4, [-0.21641; 0.21808] TeV-4 and [-0.10842; 0.10602] TeV-4, [-0.29781; 0.29689] TeV-4, [-0.33817; 0.33843] TeV-4, [-0.18948; 0.19214] TeV-4 and the sensitivities of the limits are compared.

Keywords:

Electroweak Interaction, Models Beyond the Standard Model, Muon-Proton Collider, Anomalous Neutral Triple Gauge Couplings,

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