| Title: |
Search for a nearly degenerate lepton doublet (L-,L0) |
| Authors: |
Riles, K; Perl, ML; Barklow, T; Boyarski, A; Burchat, PR; Burke, DL; Dorfan, JM; Feldman, GJ; Gladney, L; Hanson, G; Hayes, K; Hollebeek, RJ; Innes, WR; Jaros, JA; Karlen, D; Klein, SR; Lankford, AJ; Larsen, RR; LeClaire, BW; Lockyer, NS; Lüth, V; Ong, RA; Richter, B; Yelton, JM; Abrams, G; Amidei, D; Baden, AR; Boyer, J; Butler, F; Gidal, G; Gold, MS; Goldhaber, G; Golding, L; Haggerty, J; Herrup, D; Juricic, I; Kadyk, JA; Levi, ME; Nelson, ME; Rowson, PC; Schellman, H; Schmidke, WB; Sheldon, PD; Trilling, GH; Wood, DR; Schaad, T |
| Source: |
Physical Review D, vol 42, iss 1 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
1990 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
5106 Nuclear and Plasma Physics (for-2020); 5107 Particle and High Energy Physics (for-2020); 51 Physical Sciences (for-2020) |
| Subject Geographic: |
1 - 9 |
| Description: |
We have searched for a heavy charged lepton with an associated neutrino of nearly the same mass in e+e- annihilation data taken with the Mark II detector at a center-of-mass energy of 29 GeV. In order to suppress contamination from conventional two-photon reactions, this analysis uses a novel, radiative-tagging technique. Requiring the presence of an isolated, energetic photon allows a search for lepton doublets with mass splittings smaller than that previously accessible to experiment. No evidence for such a new lepton doublet has been found, enabling limits to be placed on allowed mass combinations. Mass splittings as low as 250-400 MeV/c2 are excluded for charged-lepton masses between 500 MeV/c2 and 10 GeV/c2. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
qt8bt586bb; https://escholarship.org/uc/item/8bt586bb; https://escholarship.org/content/qt8bt586bb/qt8bt586bb.pdf |
| DOI: |
10.1103/physrevd.42.1 |
| Availability: |
https://escholarship.org/uc/item/8bt586bb; https://escholarship.org/content/qt8bt586bb/qt8bt586bb.pdf; https://doi.org/10.1103/physrevd.42.1 |
| Rights: |
CC-BY |
| Accession Number: |
edsbas.708B4BFB |
| Database: |
BASE |