Results 21 to 30 of about 23,880 (187)

D-Brane Probes of Special Holonomy Manifolds [PDF]

, 2002
Using D2-brane probes, we study various properties of M-theory on singular, non-compact manifolds of G_2 and Spin(7) holonomy. We derive mirror pairs of N=1 supersymmetric three-dimensional gauge theories, and apply this technique to realize exceptional ...
A. Brandhuber, A. Giveon, A. Kapustin, A. Kapustin, A.M. Uranga, B. Acharya, B. Acharya, B. Feng, B. Feng, B. Feng, B.S. Acharya, C.E. Beasley, D. Joyce, D. Joyce, D. Tong, D.R. Morrison, David Tong, E. Witten, G. Curio, G. Ferretti, G.W. Gibbons, G.W. Gibbons, H. Partouche, J.D. Edelstein, J.M. Maldacena, K. Dasgupta, M. Aganagic, M. Aganagic, M. Aganagic, M. Aganagic, M. Atiyah, M. Berkooz, M. Cvetic, M. Cvetic, M. Gremm, M.J. Strassler, M.R. Douglas, N. Dorey, O. Bergman, P. Kaste, R. Bryant, R. Harvey, S. Gukov, S.J. Gates Jr., Sergei Gukov   +44 more
core   +2 more sources

Candidates for non-baryonic dark matter [PDF]

, 2002
This report is a brief review of the efforts to explain the nature of non-baryonic dark matter and of the studies devoted to the search for relic particles. Among the different dark matter candidates, special attention is devoted to relic neutralinos, by
Fornengo, Nicolao
core   +4 more sources

Constraining neutrino physics with BBN and CMBR [PDF]

, 2001
We perform a likelihood analysis of the recent results on the anisotropy of Cosmic Microwave Background Radiation from the BOOMERanG and DASI experiments to show that they single out an effective number of neutrinos in good agreement with standard Big ...
Hansen, S. H., Mangano, G., Melchiorri, A., Miele, G., Pisanti, O.   +4 more
core   +2 more sources

Brane World Cosmology with Gauss-Bonnet Interaction [PDF]

, 2001
We study a Randall-Sundrum model modified by a Gauss-Bonnet interaction term. We consider, in particular, a Friedmann-Robertson-Walker metric on the brane and analyse the resulting cosmological scenario. It is shown that the usual Friedmann equations are
A. Chamblin, A. Feinstein, B. Abdesselam, B. Chen, B. Ratra, C. Barceló, C. Csáki, C. Csáki, C. Csáki, C. Gómez, D. Birmingham, D. Ida, D.J.H. Chung, E.E. Flanagan, G. Huey, H. Collins, H.B. Kim, I. Giannakis, I. Low, I.I. Kogan, I.P. Neupane, J. Lesgourgues, J.E. Kim, J.E. Kim, J.E. Kim, J.M. Cline, J.M. Cline, K. Kashima, K.A. Meissner, L. Anchordoqui, L. Anchordoqui, L. Randall, L. Randall, L.P. Hořava, L.P. Hořava, M. Cvetic̆, M. Giovannini, M. Sami, N. Arkani-Hamed, N. Deruelle, N. Deruelle, N. Deruelle, N. Deruelle, N. Kaloper, N. Mohammedi, N.E. Mavromatos, O. Corradini, P. Binétruy, P. Binétruy, P. Bowcock, P. Kanti, P. Kanti, P. Kraus, P.M. Garnavich, Parampreet Singh, R. Dick, R. Maartens, R. Maartens, S. Kobayashi, S. Mizuno, S. Mukohyama, S. Mukohyama, S. Nojiri, S. Nojiri, S. Nojiri, S. Nojiri, T. Nihei, T. Padmanabhan, V. Sahni, Y.M. Cho, Y.S. Myung, Y.S. Myung   +71 more
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Spatial inequality through the prism of a pandemic: Covid-19 in South Africa

Scientific African, 2021
In this paper, we examine whether pre-existing socio-economic inequalities relate to inequalities in vulnerability to COVID-19 infection in the context of South Africa using the 2016 Community Survey, which allows for a detailed geographical ...
Muna Shifa, Anda David, Murray Leibbrandt   +2 more
doaj   +1 more source

The Casimir Effect on Background of Conformally Flat Brane--World Geometries [PDF]

, 2002
The Casimir effect due to conformally coupled bulk scalar fields on background of conformally flat brane-world geometries is investigated. In the general case of mixed boundary conditions formulae are derived for the vacuum expectation values of the ...
A.A. Saharian, Antoniadis, Arkani-Hamed, Arkani-Hamed, Banks, Barcelo, Barger, Birrel, Brevik, Csaki, Fabinger, Flachi, Garriga, Gell-Mann, Gell-Mann, Gherghetta, Goldberger, Goldberger, Goldberger, Hofmann, Horava, Kaloper, Kanti, M.R. Setare, Maeda, Nasri, Naylor, Nojiri, Nojiri, Nojiri, Nojiri, Nojiri, Randall, Romeo, Romeo, Saharian, Setare, Setare, Starkman, Starkman, Toms, Trodden, Witten   +42 more
core   +4 more sources

Re-examining inequality persistence

Economics: Journal Articles, 2020
Although it is not a new phenomenon, in recent years inequality has moved to the top of the political agenda given the concern that will result in political instability and social resentment.
Ghoshray Atanu, Monfort Mercedes, Ordóñez Javier   +2 more
doaj   +1 more source

Dynamical Generation of Yukawa Interactions in Intersecting D-brane Models

, 2004
We construct a supersymmetric composite model in type IIA T^6/(Z_2 x Z_2) orientifold with intersecting D6-branes. Four generations of quarks and leptons are naturally emerged as composite fields at low energies.
G. Aldazabal, M. Cvetic, Noriaki Kitazawa, R. Blumenhagen, R. Blumenhagen, R. Blumenhagen   +5 more
core   +3 more sources

Gravitational-Wave Inspiral of Compact Binary Systems to 7/2 Post-Newtonian Order [PDF]

, 2001
The inspiral of compact binaries, driven by gravitational-radiation reaction, is investigated through 7/2 post-Newtonian (3.5PN) order beyond the quadrupole radiation.
A. Buonanno, A. Buonanno, A. Gopakumar, A. Gopakumar, A. Krolàk, B. J. Owen, B. R. Iyer, B. R. Iyer, Bala R. Iyer, Benoit Joguet, C. Cutler, C. Cutler, C. Cutler, C. M. Will, C. M. Will, E. Poisson, E. Poisson, E. Poisson, E. Poisson, Guillaume Faye, H. Tagoshi, H. Tagoshi, H. Tagoshi, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. E. Kidder, L. E. Kidder, L. S. Finn, Luc Blanchet, M. E. Pati, M. Sasaki, P. Jaranowski, P. Jaranowski, P. Jaranowski, P. Jaranowski, T. Damour, T. Damour, T. Damour, T. Damour, T. Damour, T. Damour, T. Damour, T. Damour, T. Damour, T. Tanaka, V. C. de Andrade   +60 more
core   +4 more sources

The Impact of Intertemporal Justice on Economic Growth with Emphasis on Time Preference in the Iranian Economy [PDF]

پژوهشهای اقتصادی, 2011
In macroeconomics literature inspired by traditional economists, it is said that economic growth and more equal distribution in income, are two opposite targets since moving toward more equality of income, will reduce propensity to saving.
Rasul Bakhshi Dastjerdi
doaj