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Logarithmic unification from symmetries enhanced in the sub-millimeter infrared (open access)

Logarithmic unification from symmetries enhanced in the sub-millimeter infrared

In theories with TeV string scale and sub-millimeter extra dimensions the attractive picture of logarithmic gauge coupling unification at 10{sup 16} GeV is seemingly destroyed. In this paper we argue to the contrary that logarithmic unification can occur in such theories. The rationale for unification is no longer that a gauge symmetry is restored at short distances, but rather that a geometric symmetry is restored at large distances in the bulk away from our 3-brane. The apparent ''running'' of the gauge couplings to energies far above the string scale actually arises from the logarithmic variation of classical fields in (sets of) two large transverse dimensions. We present a number of N = 2 and N = 1 supersymmetric D-brane constructions illustrating this picture for unification.
Date: August 21, 1999
Creator: Arkani-Hamed, Nima; Dimopoulos, Savas & March-Russell, John
Object Type: Article
System: The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 84, No. 295, Ed. 1 Saturday, August 21, 1999 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 84, No. 295, Ed. 1 Saturday, August 21, 1999

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: August 21, 1999
Creator: Horn, Richard A.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Final Report: African Power/Energy and Environmental Development Plan, July 1, 1994 - August 21, 1999 (open access)

Final Report: African Power/Energy and Environmental Development Plan, July 1, 1994 - August 21, 1999

In 1994 AEF signed a Cooperative Agreement with DOE to address a program called the African Power /Energy and Environmental Development Plan. The Program initially addressed five area: (1) Historical Black Colleges and Universities Energy/Environmental Program; (2) The Department of Energy and United States Private Industry Africa Program; (3) The Annual United States Energy Study Tour; (4) South African Training Program, and (5) South African Environmental Program. The programs were implemented in conjunction with DOE, institutions, agencies and the private sector support in the USA and within African nations. AEF has worked with government and technical representatives from 13 African nations and expanded the program to address sponsorship of South African students in Historical Black Colleges and Universities, supporting DOE trade missions through participation and planning, and giving presentations in the U.S., and Africa regarding business opportunities in the African energy sector. The programs implemented have also opened doors for the US private sector to seek business opportunities in Africa and for African nations to gain exposure to US products and services.
Date: August 21, 1999
Creator: Butler, John M.
Object Type: Report
System: The UNT Digital Library
Pawhuska Journal-Capital (Pawhuska, Okla.), Vol. 89, No. 67, Ed. 1 Saturday, August 21, 1999 (open access)

Pawhuska Journal-Capital (Pawhuska, Okla.), Vol. 89, No. 67, Ed. 1 Saturday, August 21, 1999

Semiweekly newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date: August 21, 1999
Creator: Gann, Sherry
Object Type: Newspaper
System: The Gateway to Oklahoma History