Results 1 to 10 of about 1,098 (225)

Deriving Spin of the Bosonic String

, 2006
Exploiting the strict analogy between the motion of strings and extended-like spinning particles, we propose an original kinematical formulation of the spin of bosonic strings and give, for the first time, an analytical derivation of an explicit expression of the string spin vector.
SALESI, Giovanni, Giovanni Salesi
openaire   +5 more sources

All-order splits and multi-soft limits for particle and string amplitudes

Journal of High Energy Physics
The most important aspects of scattering amplitudes have long been thought to be associated with their poles. But recently a very different sort of “split” factorizations for a wide range of particle and string tree amplitudes have been discovered away ...
Nima Arkani-Hamed, Carolina Figueiredo
doaj   +1 more source

The bosonic string on string-size tori from double field theory

Journal of High Energy Physics, 2017
We construct the effective action for toroidal compactifications of bosonic string theory from generalized Scherk-Schwarz reductions of double field theory.
Yago Cagnacci, Mariana Graña, Sergio Iguri, Carmen Nuñez   +3 more
doaj   +1 more source

Second order bosonic string effective action from O(d, d)

Journal of High Energy Physics
The corrections to the tree-level effective action for the bosonic string up to second order in α ′ are fixed by requiring its dimensional reduction to 26 – d dimensions to be compatible with O(d, d) symmetry.
Linus Wulff
doaj   +1 more source

(m, n)-string and D1-brane in stringy Newton-Cartan background

Journal of High Energy Physics, 2019
This paper is devoted to the analysis of (m, n)-string in stringy Newton-Cartan background. We start with the Hamiltonian constraint for (m, n)-string in general background and perform limiting procedure on metric and NSNS and Ramond-Ramond two form ...
J. Klusoň
doaj   +1 more source

Veneziano and Shapiro-Virasoro amplitudes of arbitrarily excited strings

Journal of High Energy Physics
We extend the Veneziano and Shapiro-Virasoro amplitudes to four arbitrarily excited states in bosonic string theory. We use the formalism of coherent string states based on the Di Vecchia-Del Giudice-Fubini construction.
Maurizio Firrotta
doaj   +1 more source

Directly from H-flux to the family of three nonlocal R-flux theories

Journal of High Energy Physics, 2019
In this article we consider T-dualization of the 3D closed bosonic string in the weakly curved background — constant metric and Kalb-Ramond field with one nonzero component, B xy = Hz, where field strength H is infinitesimal.
B. Nikolić, D. Obrić
doaj   +1 more source

Spontaneous symmetry breaking in the BFSS model: analytical results using the Gaussian expansion method. [PDF]

Eur Phys J C Part Fields, 2023
Brahma S, Brandenberger R, Laliberte S.
europepmc   +1 more source

Positivity of the hypergeometric Coon amplitude

Journal of High Energy Physics
We utilize a novel method for the partial-wave unitarity recently suggested in [1] to analyse the hypergeometric Coon amplitude. In this approach we use a new type of harmonic numbers as a basis.
Bo Wang
doaj   +1 more source

Quantisation of the bosonic string [PDF]

, 2017
In this work we review the basic principles of the theory of the relativistic bosonic string through the study of the action functionals of Nambu-Goto and Polyakov and the techniques required for their canonical, light-cone, and path-integral quantisation.
openaire   +1 more source