TY - JOUR
T1 - Lepton number violation at the LHC with leptoquark and diquark
AU - Kohda, Masaya
AU - Sugiyama, Hiroaki
AU - Tsumura, Koji
N1 - Funding Information:
We thank Joe Sato, Eibun Senaha, and Hiroshi Yokoya for valuable comments. M.K. is supported by the NTU Grant No. 101R7701 and the Laurel program . The work of H.S. was supported in part by the Grant-in-Aid for Young Scientists (B) No. 23740210. K.T. was supported, in part, by the Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports, and Culture (MEXT) , Japan, No. 23104011 .
PY - 2013/1/29
Y1 - 2013/1/29
N2 - We investigate a model in which tiny neutrino masses are generated at the two-loop level by using scalar leptoquark and diquark multiplets. The diquark can be singly produced at the LHC, and it can decay into a pair of leptoquarks through the lepton number violating interaction. Subsequent decays of the two leptoquarks can provide a clear signature of the lepton number violation, namely two QCD jets and a pair of same-signed charged leptons without missing energy. We show that the signal process is not suppressed while neutrino masses are appropriately suppressed.
AB - We investigate a model in which tiny neutrino masses are generated at the two-loop level by using scalar leptoquark and diquark multiplets. The diquark can be singly produced at the LHC, and it can decay into a pair of leptoquarks through the lepton number violating interaction. Subsequent decays of the two leptoquarks can provide a clear signature of the lepton number violation, namely two QCD jets and a pair of same-signed charged leptons without missing energy. We show that the signal process is not suppressed while neutrino masses are appropriately suppressed.
UR - http://www.scopus.com/inward/record.url?scp=84872488722&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872488722&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2012.12.048
DO - 10.1016/j.physletb.2012.12.048
M3 - Article
AN - SCOPUS:84872488722
SN - 0370-2693
VL - 718
SP - 1436
EP - 1440
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 4-5
ER -