In 2022,the collider detector at Fermilab(CDF)collaboration reported the W-boson mass(MW=80.4335±0.0094GeV),which deviates from the standard model(SM)prediction(M_(W)^(SM)=80.357±0.006GeV)by~7σ.In contrast,...In 2022,the collider detector at Fermilab(CDF)collaboration reported the W-boson mass(MW=80.4335±0.0094GeV),which deviates from the standard model(SM)prediction(M_(W)^(SM)=80.357±0.006GeV)by~7σ.In contrast,the CMS collaboration obtained MW=80.3602±0.0099GeV,which was very close to the SM global electroweak fit value of∼80.357GeV.Motivated by this situation,we reassess the W-boson mass within the lepton-specific two Higgs doublet model(LS-2HDM).To this end,we perform random scans(generated with SARAH 4.13.0 and evaluated with SPheno 4.0.3)and confront the results with up-to-date theoretical and experimental constraints.The scan enforces vacuum stability,perturbative unitarity,and perturbativity;electroweak precision observables via the oblique parameters(S,T,U);LEP bounds on H^(±);rare B-meson decays;lepton flavor universality(LFU)in Z andτdecays;and 13 TeV LHC searches for additional Higgs bosons.Viable points are further tested with HiggsTools(HiggsSignals+HiggsBounds).In the LS-2HDM,if h_(1)is the SM-like Higgs at m_(h1)≃125 GeV with|cos(β−α)|≲0.06,17≲tanβ≲39,144≲m_(h2)≲414 GeV,and 435≲mA,H±≲685 GeV,the model reproduces the 2024 CMS W-boson mass within 3σ.Solutions near the 2022 CDF value(M_(W)=80.4335±0.0094GeV)survive;however,after applying all constraints,including HiggsTools,they approach it at best within≲2σ.Our findings emphasize that LS-2HDM favors the CMS results consistently with the current experimental results.Although one can theoretically accommodate the CDF results in this model,up-to-date electroweak precision bounds on oblique parameters(S,T,U)with the SM-like Higgs and LFU constraints exclude these solutions.Our results for W-boson mass can only be as close as about 2σ to the CDF results.展开更多
基金supported in part by the Turkish Energy,Nuclear and Mineral Research Agency under project number 2022TENMAK(CERN)A5.H3.F2-02。
文摘In 2022,the collider detector at Fermilab(CDF)collaboration reported the W-boson mass(MW=80.4335±0.0094GeV),which deviates from the standard model(SM)prediction(M_(W)^(SM)=80.357±0.006GeV)by~7σ.In contrast,the CMS collaboration obtained MW=80.3602±0.0099GeV,which was very close to the SM global electroweak fit value of∼80.357GeV.Motivated by this situation,we reassess the W-boson mass within the lepton-specific two Higgs doublet model(LS-2HDM).To this end,we perform random scans(generated with SARAH 4.13.0 and evaluated with SPheno 4.0.3)and confront the results with up-to-date theoretical and experimental constraints.The scan enforces vacuum stability,perturbative unitarity,and perturbativity;electroweak precision observables via the oblique parameters(S,T,U);LEP bounds on H^(±);rare B-meson decays;lepton flavor universality(LFU)in Z andτdecays;and 13 TeV LHC searches for additional Higgs bosons.Viable points are further tested with HiggsTools(HiggsSignals+HiggsBounds).In the LS-2HDM,if h_(1)is the SM-like Higgs at m_(h1)≃125 GeV with|cos(β−α)|≲0.06,17≲tanβ≲39,144≲m_(h2)≲414 GeV,and 435≲mA,H±≲685 GeV,the model reproduces the 2024 CMS W-boson mass within 3σ.Solutions near the 2022 CDF value(M_(W)=80.4335±0.0094GeV)survive;however,after applying all constraints,including HiggsTools,they approach it at best within≲2σ.Our findings emphasize that LS-2HDM favors the CMS results consistently with the current experimental results.Although one can theoretically accommodate the CDF results in this model,up-to-date electroweak precision bounds on oblique parameters(S,T,U)with the SM-like Higgs and LFU constraints exclude these solutions.Our results for W-boson mass can only be as close as about 2σ to the CDF results.
