Results 21 to 30 of about 105,358 (314)
Sterile neutrinos in string derived models
European Physical Journal C: Particles and Fields, 2018 The MiniBooNE collaboration recently reported further evidence for the existence of sterile neutrinos, implying substantial mixing with the left-handed active neutrinos and at a comparable mass scale.
Alon E. Faraggi
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Topological strings from WZW models [PDF]
Physics Letters B, 1995 We show that the BRST structure of the topological string is encoded in the ``small'' $N=4$ superconformal algebra, enabling us to obtain, in a non-trivial way, the string theory from hamiltonian reduction of $A(1|1)$. This leads to the important conclusion that not only ordinary string theories, but topological strings as well, can be obtained, or ...
Landsteiner, K., Lerche, W., Sevrin, A.
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Non-abelian fermionic T-duality in supergravity
Journal of High Energy Physics, 2021 Field transformation rules of the standard fermionic T-duality require fermionic isometries to anticommute, which leads to complexification of the Killing spinors and results in complex valued dual backgrounds.
Lev Astrakhantsev +2 more
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Non-singular pre-big bang scenarios from all-order α′ corrections
Journal of High Energy Physics, 2023 We reformulate in Hamiltonian language the recent proposal by Hohm and Zwiebach of an action yielding the most general O(d, d)-symmetric string cosmology equations, at tree-level in the string-loop expansion, but to all orders in the α′ expansion.
M. Gasperini, G. Veneziano
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Generalised U-dual solutions via ISO(7) gauged supergravity
Journal of High Energy Physics, 2022 We study a solution generating technique in supergravity which can be viewed as a generalised version of U-duality, taking solutions of type IIA supergravity on a 6-sphere with RR flux to new solutions of 11-dimensional supergravity.
Chris D. A. Blair, Sofia Zhidkova
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Coset space actions for nonrelativistic strings
Journal of High Energy Physics, 2022 We formulate the stringy nonrelativistic limits of the flat space and AdS5 ×S5 string as coset models, based on the string Bargmann and extended string Newton-Hooke algebras respectively.
Andrea Fontanella, Stijn J. van Tongeren
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Multiflavor string-net models [PDF]
Physical Review B, 2017 We generalize the string-net construction to multiple flavors of strings, each of which is labeled by the elements of an abelian group $G_i$. The same flavor of strings can branch while different flavors of strings can cross one another and thus they form intersecting string-nets. We systematically construct the exactly soluble lattice Hamiltonians and
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BFKL pomeron in string models [PDF]
Nuclear Physics B, 2006 48 pages, 2 ...
Danilov, G. S., Lipatov, L. N.
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Standard model-like D-brane models and gauge couplings
Nuclear Physics B, 2015 We systematically search intersecting D-brane models, which just realize the Standard Model chiral matter contents and gauge symmetry. We construct new classes of non-supersymmetric Standard Model-like models.
Yuta Hamada +2 more
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Second stage string fragmentation model [PDF]
Physical Review D, 1998 15 ...
Aithan, Thamar Ali, Rosenzweig, Carl
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