Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Barceló R"'
We consider SUSY extensions of the standard model where the gravitino is the dark-matter particle and the stau is long lived. If there is a significant mass gap with squarks and gluinos, the staus produced at hadron colliders tend to be fast (beta>0.
Externí odkaz:
http://arxiv.org/abs/1206.5108
Publikováno v:
Phys.Rev.D83:034027,2011
Charmed mesons may be produced when a primary cosmic ray or the leading hadron in an air shower collide with an atmospheric nucleon. At energies \ge 10^8 GeV their decay length becomes larger than 10 km, which implies that they tend to interact in th
Externí odkaz:
http://arxiv.org/abs/1010.0894
Publikováno v:
Nucl.Phys.B782:159-170,2007
We study Little Higgs models based on a SU(3)_1 x SU(3)_2 global symmetry and with two scales (the two vacuum expectation values f_{1,2}) substantially different. We show that all the extra vector boson fields present in these models may be much heav
Externí odkaz:
http://arxiv.org/abs/hep-ph/0701040