Orientifolds of nonsupersymmetric asymmetric orbifolds - INSPIRE

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Orientifolds of nonsupersymmetric asymmetric orbifolds

Dec, 1998

16 pages

Published in:

Nucl.Phys.B 551 (1999) 601-616

e-Print:

hep-th/9812158 [hep-th]

DOI:

10.1016/S0550-3213(99)00241-2

Report number:

HUB-EP-98-76

View in:

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Abstract:

We consider certain four dimensional supersymmetric and non-supersymmetric asymmetric orbifolds with vanishing cosmological constant up to two loops and gauge the world sheet parity transformation. This leads to new string vacua, in which Dp and D(p-4) branes or Dp and anti-D(p-4) are identified. Moreover, it is shown that different degrees of supersymmetry can be realized in the bulk and on the brane. We show that for non-supersymmetric models the cosmological constant still vanishes at one loop order.

Note:

18 pages, 3 figures, TeX; model changed from SU(2)^4 to SO(8) lattice, massless spectra changed Report-no: HUB-EP-98/76

11.25.Mj
11.25.Db
:11.25.Sq
Orientifolds
Asymmetric orbifolds
Problem of cosmological constant
D-branes
orientifold
orbifold: asymmetry
membrane model: bound state

References(17)

Figures(0)

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