Müon-Proton Çarpıştırıcılarında Anormal Yüksüz Üçlü Ayar Bağlaşımların Araştırılması

Yıl 2023, Cilt: 23 Sayı: 2, 316 - 325, 03.05.2023

Serdar Spor

https://doi.org/10.35414/akufemubid.1178801

Öz

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

Teşekkür

Bu araştırmada yer alan kısmi nümerik hesaplamalar TÜBİTAK ULAKBİM, Yüksek Başarım ve Grid Hesaplama Merkezi’nde (TRUBA kaynaklarında) gerçekleştirilmiştir.

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

Öz

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.

Anahtar Kelimeler

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

Kaynakça

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