Model-independent limits for anomalous triple gauge bosons W+W-gamma couplings at the CLIC


Billur A. A., Koksal M., Gutierrez-Rodriguez A., Hernandez-Ruiz M. A.

EUROPEAN PHYSICAL JOURNAL PLUS, cilt.136, sa.6, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 136 Sayı: 6
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1140/epjp/s13360-021-01684-6
  • Dergi Adı: EUROPEAN PHYSICAL JOURNAL PLUS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, INSPEC
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

In this study, we investigate the potential of the gamma gamma -> W+W-, e(+)gamma -> e(+)gamma*gamma -> e(+)W(-)W(+) and e(+)e(-) -> e(+)gamma*gamma*e(-) -> e(+)W(-)W(+)e(-) processes at the Compact Linear Collider (CLIC) operating in gamma gamma, gamma*gamma and gamma*gamma* modes to probe the anomalous triple gauge bosons W+W-gamma couplings. To identify the W+W- production in the final state, we consider the leptonic, semi-leptonic and hadronic decays channels. Based on future CLIC data, we assume L = 1ab(-1)@root s = 0.380TeV, L = 2.5ab-1@root s = 1.5TeV, L = 5ab(-1)@root s = 3TeV and delta(sys) = 0%, 5%, 10%, 15% for our study. Using these data, the strongest limits expected with the gamma gamma -> W+W-, e(+)gamma -> e(+)gamma*gamma -> e(+)W(-)W(+) and e(+)e(-)-> e+gamma*gamma*e(-)-> e(+)W(-)W(+)e(-) processes on the anomalous Delta kappa(gamma) and lambda(gamma) couplings with delta(sys) = 0% at 95% C.L. are: Delta kappa(gamma) = +/- 0.00007, lambda(gamma) = [-0.00004, 0.00102], Delta kappa(gamma) = +/- 0.00015, lambda gamma = [-0.00013,0.00340] and Delta kappa(gamma) = [-0.00048,0.00049], lambda(gamma)=[-0.00048,0.00782]. The bounds for Delta kappa(gamma) and lambda(gamma) with delta(sys) = 5%, 10%, 15% are weaker with respect to the bounds obtained with delta(sys) = 0%. These limits show potential sensitivity when compared with those from LHC and HL-LHC data and can be a very promising option to probe the anomalous W+W-gamma couplings at the CLIC. In addition, a prominent advantage of these processes is that they isolate anomalous W+W-gamma couplings, thus allowing the study of W+W-gamma couplings independently from W(+)W(-)Z.