Proton decay in intersecting D-brane models

Klebanov, Igor R.; Witten, Edward

doi:10.1016/S0550-3213(03)00410-3

Proton decay in intersecting D-brane models

Apr, 2003

21 pages

Published in:

Nucl.Phys.B 664 (2003) 3-20

e-Print:

hep-th/0304079 [hep-th]

DOI:

10.1016/S0550-3213(03)00410-3

Report number:

PUPT-2080

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Abstract:

We analyze proton decay via dimension six operators in certain GUT-like models derived from Type IIA orientifolds with

D6

-branes. The amplitude is parametrically enhanced by a factor of

\alpha_{GUT}^{-1/3}

relative to the coresponding result in four-dimensional GUT's. Nonetheless, even assuming a plausible enhancement from the threshold corrections, we find little overall enhancement of the proton decay rate from dimension six operators, so that the predicted lifetime from this mechanism remains close to

10^{36}

years.

membrane model: D-brane
p: decay
grand unified theory
operator: higher-dimensional
p: lifetime
operator: vertex
string model
scattering amplitude: (4fermion)
gauge field theory: SU(5)

References(40)

Figures(0)

Unity of All Elementary Particle Forces

H. Georgi
(
- Harvard U.
)
,
S.L. Glashow
(
- Harvard U.
)

- Phys.Rev.Lett. 32 (1974) 438-441,
- Also in *Lichtenberg, D.B. (ed.), Rosen, S.P. (ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 492-495, and in *Froggatt, C.D., Nielsen, H.B.: Origin of symmetries* 330-333
•
DOI:
- 10.1103/PhysRevLett.32.438

Supersymmetry and the Scale of Unification

S. Dimopoulos
(
- Stanford U., ITP and
- Santa Barbara, KITP and
- Michigan U.
)
,
S. Raby
(
- Stanford U., ITP and
- SLAC
)
,
Frank Wilczek
(
- Santa Barbara, KITP
)

- Phys.Rev.D 24 (1981) 1681-1683,
- In *Ferrara, S. (ed.): Supersymmetry, Vol. 1*, 730-732
•
DOI:
- 10.1103/PhysRevD.24.1681

Not even decoupling can save minimal supersymmetric SU(5)

Hitoshi Murayama
(
- UC, Berkeley and
- LBL, Berkeley
)
,
Aaron Pierce
(
- UC, Berkeley and
- LBL, Berkeley
)

- Phys.Rev.D 65 (2002) 055009
•
e-Print:
- hep-ph/0108104
•
DOI:
- 10.1103/PhysRevD.65.055009

Proton decay in minimal supersymmetric SU(5)

- Phys.Rev.D 66 (2002) 075005
•
e-Print:
- hep-ph/0204311
•
DOI:
- 10.1103/PhysRevD.66.075005

Minimal supersymmetric SU(5) theory and proton decay: Where do we stand?

•
e-Print:
- hep-ph/0210374

Deconstruction, G(2) holonomy, and doublet triplet splitting

Edward Witten
(
- Princeton, Inst. Advanced Study
)

•
e-Print:
- hep-ph/0201018

Vacuum configurations for superstrings

P. Candelas
(
- Texas U. and
- Santa Barbara, KITP
)
,
Gary T. Horowitz
(
- UC, Santa Barbara
)
,
Andrew Strominger
(
- Princeton, Inst. Advanced Study
)
,
Edward Witten
(
- Princeton U.
)

- Nucl.Phys.B 258 (1985) 46-74,
- Nucl.Phys.B 258 (1985) 46-74,
- Also in *Schwarz, J.H. (ed.): Superstrings, Vol. 2*, 1107-1137, and in *Ferrara, S. (ed.): Supersymmetry, Vol. 2*, 1310-1338, and in *Dine, M. (ed.): String theory in four dimensions* 49-77
•
DOI:
- 10.1016/0550-3213(85)90602-9

Symmetry breaking patterns in superstring models

Edward Witten
(
- Princeton U.
)

- Nucl.Phys.B 258 (1985) 75-100,
- Nucl.Phys.B 258 (1985) 75,
- IN *DINE, M. (ED.): STRING THEORY IN FOUR DIMENSIONS* 78-103. (NUCL. PHYS. B258 (1985) 75-100) AND PREPRINT - WITTEN, E (85,REC.APR.) 45 P. (SEE BOOK INDEX)
•
DOI:
- 10.1016/0550-3213(85)90603-0