LIMITS ON CHARGED PARTICLES IN HADRONIC REACTIONS

Long-Lived Heavy Particle Cross Section

INSPIRE   JSON  (beta) PDGID:
S015DCC
VALUE (pb/sr) CL% DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$<34$ 95 1
RAM
1994
SPEC 1015$<{\mathit m}_{{{\mathit X}^{++}}}<$1085 MeV
$<75$ 95 1
RAM
1994
SPEC 920$<{\mathit m}_{{{\mathit X}^{++}}}<$1025 MeV
1  RAM 1994 search for a long-lived doubly-charged fermion ${{\mathit X}^{++}}$ with mass between ${\mathit m}_{{{\mathit N}}}$ and ${\mathit m}_{{{\mathit N}}}+{\mathit m}_{{{\mathit \pi}}}$ and baryon number $+$1 in the reaction ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit X}^{++}}{{\mathit n}}$. No candidate is found. The limit is for the cross section at 15$^\circ{}$ scattering angle at 460 MeV incident energy and applies for $\tau\mathrm {({{\mathit X}^{++}})}{}\gg0.1~\mu $s.
References