TY  - JOUR 
AU  - Aguilar Saavedra, Juan Antonio
AU  - Pérez-Victoria, Manuel
PY  - 2011
SN  - 0370-2693
UR  - http://hdl.handle.net/10481/30545
AB  - We use a recent upper limit from CDF on like-sign top pair production to place constraints on general new vector bosons and scalars mediating u u -> t t. The possible vector bosons comprise neutral colour singlets or octets, and charge 4/3 colour...
LA  - eng
PB  - Elsevier
KW  - Top quark
KW  - Standard model
KW  - Hadronic colliders
TI  - No like-sign tops at Tevatron: Constraints on extended models and implications for the tt asymmetry
ER  -