Zobrazeno 1 - 10
of 957
pro vyhledávání: '"Bailin, D"'
Autor:
Bailin, D., Love, A.
Publikováno v:
Phys.Lett. B598 (2004) 83-91
We show that attempts to construct the standard model, or the MSSM, by placing D3-branes and D7-branes at a Z_N orbifold or orientifold singularity all require that the electroweak Higgs content is non-minimal. For the orbifold the lower bound on the
Externí odkaz:
http://arxiv.org/abs/hep-th/0406031
Publikováno v:
JHEP 0302 (2003) 052
We construct eight-stack intersecting D5-brane models, with an orbifold transverse space, that yield the (non-supersymmetric) standard model up to vector-like leptons. The matter includes right-chiral neutrinos and the models have the renormalisable
Externí odkaz:
http://arxiv.org/abs/hep-th/0212112
Autor:
Bailin, D.
I describe the main features of new intersecting D4- and D5-brane orbifold models that yield the non-supersymmetric standard model, up to vector-like matter and, in some cases, extra U(1) factors in the gauge group. There are six-stack D4-brane model
Externí odkaz:
http://arxiv.org/abs/hep-th/0210227
Publikováno v:
Phys.Lett. B553 (2003) 79-86
We construct intersecting D5-brane orbifold models that yield the (non-supersymmetric) standard model up to vector-like matter and charged-singlet scalars. The models are constrained by the requirement that twisted tadpoles cancel, and that the gauge
Externí odkaz:
http://arxiv.org/abs/hep-th/0210219
Publikováno v:
Phys.Lett. B547 (2002) 43-50
We construct a new set of intersecting D4-brane models that yield the (non-supersymmetric) standard model up to vector-like matter and, in some cases, extra U(1) factors in the gauge group. The models are constrained by the requirement that twisted t
Externí odkaz:
http://arxiv.org/abs/hep-th/0208103
Publikováno v:
Phys.Lett. B530 (2002) 202-209
We construct a one-parameter set of intersecting D4-brane models, with six stacks, that yield the (non-supersymmetric) standard model plus extra vector-like matter. Twisted tadpoles and gauge anomalies are cancelled, and the model contains all of the
Externí odkaz:
http://arxiv.org/abs/hep-th/0108131
We briefly review attempts to construct string theories that yield the standard model, concentrating on models with a geometric interpretation. Calabi-Yau compactifications are discussed in the context of both the weakly coupled heterotic string and
Externí odkaz:
http://arxiv.org/abs/hep-th/0108127