We study flavor-changing bottom quark radiative decay b→sγinduced at the one-loop level within the minimal gauged two-Higgs-doublet model(G2HDM).Among the three new contributions to this rare process in G2HDM,we fin...We study flavor-changing bottom quark radiative decay b→sγinduced at the one-loop level within the minimal gauged two-Higgs-doublet model(G2HDM).Among the three new contributions to this rare process in G2HDM,we find that only the charged Higgs H^(±) contribution can be constrained by the current global fit data in Bphysics.The other two contributions from complex vectorial dark matter W and dark Higgs D are not sensitive to the current data.Incorporating theoretical constraints imposed on the scalar potential and electroweak precision data for the oblique parameters,we exclude mass regions m_(H)^(±)≤250 GeV and m_(D)≤100 GeV at the 95% confidence level.展开更多
基金Supported in part by the National Natural Science Foundation of China (19Z103010239, 12350410369 (VQT), U1932104 (FRX))the NSTC (111-2112-M-001-035 (TCY))。
文摘We study flavor-changing bottom quark radiative decay b→sγinduced at the one-loop level within the minimal gauged two-Higgs-doublet model(G2HDM).Among the three new contributions to this rare process in G2HDM,we find that only the charged Higgs H^(±) contribution can be constrained by the current global fit data in Bphysics.The other two contributions from complex vectorial dark matter W and dark Higgs D are not sensitive to the current data.Incorporating theoretical constraints imposed on the scalar potential and electroweak precision data for the oblique parameters,we exclude mass regions m_(H)^(±)≤250 GeV and m_(D)≤100 GeV at the 95% confidence level.
