Results 21 to 30 of about 6,873,885 (298)
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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String-Generated Gravity Models [PDF]
Physical Review Letters, 1985 Expansion of supersymmetric string theory suggests that the leading quadratic curvature correction to the Einstein action is the Gauss-Bonnet invariant. We show that this model has both flat and anti-de Sitter space as solutions, but that the cosmological branch is unstable, because the graviton becomes a ghost there: The theory solves its own ...
Boulware, David G., Deser, S.
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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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CHARMED BARYON IN A STRING MODEL [PDF]
International Journal of Modern Physics E, 2010 Charmed baryon spectroscopy has been studied under a string model. In this model, charmed baryons are composed of a diquark and a charm quark which are connected by a constant tension. In this diquark picture, the quantum numbers JP of confirmed baryons have been well assigned.
Wang, Q. W., Zhang, P. M.
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A model for string-breaking in QCD [PDF]
Journal of High Energy Physics, 2003 7 pages, minor improvements of the text and of the reference ...
ANTONOV D. +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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Fundamental Strings and D-Strings in the IIB Matrix Model [PDF]
Modern Physics Letters A, 1997 The matrix model for IIB superstring proposed by Ishibashi, Kawai, Kitazawa and Tsuchiya is investigated. Consideration of planar and non-planar diagrams suggests that large-N perturbative expansion is consistent with the double scaling limit proposed by the above authors.
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Stable string bit models [PDF]
Physical Review D, 2014 26 pages, 7 figures, error corrected in eq (81) and typos ...
Sun, Songge, Thorn, Charles B.
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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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Aspects of Topological String Theory [PDF]
, 2008 Two aspects of the topological string and its applications are considered in this thesis. Firstly, non-perturbative contributions to the OSV conjecture relating four-dimensional extremal black holes and the closed topological string partition function ...
Cook, Paul Langabi Hogan
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