Results 11 to 20 of about 217,958 (282)
Quark mass correction to the string potential [PDF]
A consistent method for calculating the interquark potential generated by the relativistic string with massive ends is proposed. In this approach the interquark potential in the model of the Nambu--Goto string with point--like masses at its ends is ...
A. Barchielli +40 more
core +6 more sources
String-corrected black holes [PDF]
We investigate the geometry of four dimensional black hole solutions in the presence of stringy higher curvature corrections to the low energy effective action. For certain supersymmetric two charge black holes these corrections drastically alter the causal structure of the solution, converting seemingly pathological null singularities into timelike ...
Hubeny, Veronika +2 more
openaire +4 more sources
Instanton corrections and Emergent Strings [PDF]
Abstract We study limits of infinite distance in the moduli space of 4d $$ \mathcal{N} $$ N = 2 string compactifications, in which instanton effects dominate.
Florent Baume +2 more
openaire +6 more sources
String unification and threshold corrections [PDF]
The interpretation of the apparent unification of gauge couplings within supersymmetric theories depends on uncertainties induced through heavy particle thresholds. While in standard grand unified theories these effects can be estimated easily, the corresponding calculations are quite complicated in string unified theories and do exist only in models ...
Mayr, P., Nilles, H. P., Stieberger, S.
openaire +2 more sources
Classical corrections in string cosmology [PDF]
30 pages, Latex, epsfig, 6 ...
Brustein, Ram, Madden, Richard
openaire +2 more sources
Heterotic string corrections from the dual type II string [PDF]
21 pages, 5 figures, refs ...
Aspinwall, Paul S., Plesser, M. Ronen
openaire +2 more sources
α′-corrected black holes in String Theory [PDF]
Abstract We consider the well-known solution of the Heterotic Superstring effective action to zeroth order in α ′ that describes the intersection of a fundamental string with momentum and a solitonic 5-brane and which gives a 3-charge, static, extremal, supersymmetric black hole in 5 dimensions upon dimensional ...
Pablo A. Cano +3 more
openaire +4 more sources
Nonminimal string corrections and supergravity [PDF]
We reconsider the well-known issue of string corrections to Supergravity theory. Our treatment is carried out to second order in the string slope parameter. We establish a procedure for solving the Bianchi identities in the non minimal case, and we solve a long standing problem in the perturbative expansion of D=10, N=1 string corrected Supergravity ...
Bellucci, S., O'Reilly, D.
openaire +2 more sources
Curvature Expansion for the Gluodynamics String including Perturbative Gluonic Contributions [PDF]
Perturbation theory in the nonperturbative QCD vacuum and the non-Abelian Stokes theorem, representing a Wilson loop in the SU(2) gluodynamics as an integral over all the orientations in colour space, are applied to a derivation of the correction to the ...
Campostrini M. +6 more
core +2 more sources
Infinity in string cosmology: A review through open problems [PDF]
We review recent developments in the field of string cosmology with particular emphasis on open problems having to do mainly with geometric asymptotics and singularities.
Antoniadis, Ignatios, Cotsakis, Spiros
core +2 more sources

