Results 21 to 30 of about 29,716 (213)

The generalized Bergshoeff-de Roo identification. Part II

Journal of High Energy Physics, 2021
We recently introduced a T-duality covariant mechanism to compute all-order higher-derivative interactions in the heterotic string. Here we extend the formalism to account for a two-parameter family of corrections that also include the bosonic string and
W. Baron, D. Marques
doaj   +1 more source

Positivity of the Veneziano amplitude in D = 4

Journal of High Energy Physics, 2022
The Veneziano amplitude was put forward as a solution to the axioms of the S-matrix bootstrap. However, unitarity, reflected in the positivity of the coefficients in the Gegenbauer expansion of the amplitude is not obvious.
Pronobesh Maity
doaj   +1 more source

Bosonic string algebras

Physics Letters B, 1985
We discuss some aspects of symmetry breakings in string theories. We mainly focus on the algebra of bosonic strings, but suspect similar ideas may be used for superstring theories. We point out a curious relation between the partition function of certain bosonic string theories and superstring theories.
C. Vafa, E. Witten
openaire   +1 more source

Degeneracy Between the Regge Slope of Mesons and Baryons from Supersymmetry [PDF]

, 2009
We consider the degeneracy between the Regge slope of mesons and baryons in QCD. We argue that within the "orientifold large-N approximation" asymptotically massive mesons and baryons become supersymmetric partners and hence degenerate.
A. Armoni, A. Sagnotti, Adi Armoni, Agostino Patella, D.B. Lichtenberg, F. Wilczek, L. Del Debbio, S. Bolognesi   +7 more
core   +1 more source

Cutting the Coon amplitude

Journal of High Energy Physics, 2023
The Coon amplitude is a q-deformed generalization of the Veneziano amplitude exhibiting a semi-infinite sequence of poles that converge on an accumulation point, from which a branch cut emerges. A number of recent papers have provided compelling evidence
Christian Baadsgaard Jepsen
doaj   +1 more source

Two-point string amplitudes

Journal of High Energy Physics, 2019
We show that the two-point tree level amplitude in string theory in flat space is given by the standard free particle expression.
Harold Erbin, Juan Maldacena, Dimitri Skliros   +2 more
doaj   +1 more source

Fermions in bosonic string theories [PDF]

Journal of High Energy Physics, 2001
25 pages, 2 figs, harvmac ; v2, minor modifications, references ...
David, Justin R., Minwalla, Shiraz, Nunez, Carlos   +2 more
openaire   +2 more sources

Moduli Space Dimensions of Multi-Pronged Strings [PDF]

, 1999
The numbers of bosonic and fermionic zero modes of multi-pronged strings are counted in ${\cal N}=4$ super-Yang-Mills theory and compared with those of the IIB string theory.
A. Sen, Bum-Hoon Lee, C. Fraser, D. Bak, Dongsu Bak, E. J. Weinberg, H. Osborn, Hyunsoo Min, I. Kishimoto, J. D. Blum, J. H. Schwarz, J. P. Gauntlett, J. P. Gauntlett, K. Dasgupta, K. Hashimoto, K. Hashimoto, K. Lee, Koji Hashimoto, M. Krogh, N. S. Manton, N. Sasakura, Naoki Sasakura, O. Aharony, O. Bergman, O. Bergman, S.-J. Rey, T. Kawano, Y. Matsuo   +27 more
core   +2 more sources

Canonical analysis of new non-relativistic string action and uniform light-cone gauge formulation

Journal of High Energy Physics, 2021
We perform canonical analysis of new non-relativistic string action that was found recently in [32]. We also discuss its gauge fixed form.
J. Klusoň
doaj   +1 more source

Pinching parameters for open (super) strings

Journal of High Energy Physics, 2018
We present an approach to the parametrization of (super) Schottky space obtained by sewing together three-punctured discs with strips. Different cubic ribbon graphs classify distinct sets of pinching parameters; we show how they are mapped onto each ...
Sam Playle, Stefano Sciuto
doaj   +1 more source