TY - JOUR
T1 - Comments on flipped SU(5) (and F-theory)
AU - Kuflik, E.
AU - Marsano, J.
PY - 2011
Y1 - 2011
N2 - We study the impact of nonrenormalizable operators in flipped SU(5) that can generate a large? term, R-parity violation, and rapid proton decay. While our motivation is to determine whether F-theory can naturally realize flipped SU(5), this analysis is general and leads to a characterization of symmetries capable of controlling such operators and should be independent of F-theory. We then discuss some specific implications for Ftheory model building, where a significant ? problem is unavoidable. Finally, we mention previously noted difficulties associated to engineering GUT-Higgs fields in F-theory, suggest a direct engineering of SU(5)×U(1)χ as an alternative, and present a sample construction of this type.
AB - We study the impact of nonrenormalizable operators in flipped SU(5) that can generate a large? term, R-parity violation, and rapid proton decay. While our motivation is to determine whether F-theory can naturally realize flipped SU(5), this analysis is general and leads to a characterization of symmetries capable of controlling such operators and should be independent of F-theory. We then discuss some specific implications for Ftheory model building, where a significant ? problem is unavoidable. Finally, we mention previously noted difficulties associated to engineering GUT-Higgs fields in F-theory, suggest a direct engineering of SU(5)×U(1)χ as an alternative, and present a sample construction of this type.
KW - F-Theory
KW - GUT
UR - http://www.scopus.com/inward/record.url?scp=80053118653&partnerID=8YFLogxK
U2 - 10.1007/JHEP03(2011)020
DO - 10.1007/JHEP03(2011)020
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AN - SCOPUS:80053118653
SN - 1126-6708
VL - 2011
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 3
M1 - 20
ER -