Proton decay in intersecting D-brane models

Igor R. Klebanov; Edward Witten

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

Proton decay in intersecting D-brane models

Research output: Contribution to journal › Article › peer-review

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 α_GUT^-1/3 relative to the corresponding result in four-dimensional GUTs. 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 10³⁶ years.

Original language	English (US)
Pages (from-to)	3-20
Number of pages	18
Journal	Nuclear Physics B
Volume	664
Issue number	3
DOIs	https://doi.org/10.1016/S0550-3213(03)00410-3
State	Published - Aug 11 2003

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/S0550-3213(03)00410-3

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title = "Proton decay in intersecting D-brane models",

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 αGUT-1/3 relative to the corresponding result in four-dimensional GUTs. 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 1036 years.",

author = "Klebanov, \{Igor R.\} and Edward Witten",

note = "Funding Information: We thank M. Cveti{\v c} and S. Raby for useful discussions. I.R.K. gratefully acknowledges the hospitality of the George P. and Cynthia W. Mitchell Institute for Fundamental Physics at Texas A\&M University, where some of this work was carried out. This material is based upon work supported in part by the National Science Foundation Grants No. PHY-9802484 and PHY-0070928. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.",

year = "2003",

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doi = "10.1016/S0550-3213(03)00410-3",

language = "English (US)",

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T1 - Proton decay in intersecting D-brane models

AU - Klebanov, Igor R.

AU - Witten, Edward

N1 - Funding Information: We thank M. Cvetič and S. Raby for useful discussions. I.R.K. gratefully acknowledges the hospitality of the George P. and Cynthia W. Mitchell Institute for Fundamental Physics at Texas A&M University, where some of this work was carried out. This material is based upon work supported in part by the National Science Foundation Grants No. PHY-9802484 and PHY-0070928. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

PY - 2003/8/11

Y1 - 2003/8/11

N2 - 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 αGUT-1/3 relative to the corresponding result in four-dimensional GUTs. 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 1036 years.

AB - 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 αGUT-1/3 relative to the corresponding result in four-dimensional GUTs. 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 1036 years.

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U2 - 10.1016/S0550-3213(03)00410-3

DO - 10.1016/S0550-3213(03)00410-3

M3 - Article

AN - SCOPUS:0038102713

SN - 0550-3213

VL - 664

SP - 3

EP - 20

JO - Nuclear Physics B

JF - Nuclear Physics B

IS - 3

ER -

Proton decay in intersecting D-brane models

Abstract

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