TY - JOUR
T1 - Exotic decays of top partners with charge 5/3
T2 - bounds and opportunities
AU - Xie, Ke Pan
AU - Cacciapaglia, Giacomo
AU - Flacke, Thomas
N1 - Publisher Copyright:
© 2019, The Author(s).
PY - 2019/10/1
Y1 - 2019/10/1
N2 - Exotic decays of top partners in new bosons are the norm in realistic models of a composite Higgs. We focus on the custodial charge-5/3 partner, which normally decays exclusively into tW+. The new channels include a colour-sextet, X5/3→b¯ π6, as well as singly and doubly charged scalars, X5/3→ t𝜙+, b𝜙++. We use existing same-sign lepton searches to show that the new final states are constrained at the same level as the standard one. At the same time, exotic final states also offer opportunities for improvement: examples include a hard photon in X5/3→ t𝜙+→ tW+γ decays, and top-rich channels which arises in several exotic X5/3 decays.
AB - Exotic decays of top partners in new bosons are the norm in realistic models of a composite Higgs. We focus on the custodial charge-5/3 partner, which normally decays exclusively into tW+. The new channels include a colour-sextet, X5/3→b¯ π6, as well as singly and doubly charged scalars, X5/3→ t𝜙+, b𝜙++. We use existing same-sign lepton searches to show that the new final states are constrained at the same level as the standard one. At the same time, exotic final states also offer opportunities for improvement: examples include a hard photon in X5/3→ t𝜙+→ tW+γ decays, and top-rich channels which arises in several exotic X5/3 decays.
KW - Beyond Standard Model
KW - Exotics
KW - Hadron-Hadron scattering (experiments)
KW - same charge top pair
KW - vector-like quarks
UR - https://www.scopus.com/pages/publications/85073625418
U2 - 10.1007/JHEP10(2019)134
DO - 10.1007/JHEP10(2019)134
M3 - 文章
AN - SCOPUS:85073625418
SN - 1029-8479
VL - 2019
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 10
M1 - 134
ER -