Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Subham Dutta Chowdhury"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-47 (2024)
Abstract In this work, we classify all the possible local four-point couplings relevant for tree-level flat space 2 → 2 scattering of external massive particles of spin one and spin two which do not grow faster than s 2 at large s and fixed t. This
Externí odkaz:
https://doaj.org/article/72025fa0b9004da79c6e2505d376529c
Autor:
Subham Dutta Chowdhury
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 4, Pp 1-36 (2023)
Abstract Four point tree-level local S-matrices form a module over ring of polynomials of Mandelstam invariants s, t and u. The module of local analytic S-matrices can be encoded in terms of a partition function which is enumerated using plethystic t
Externí odkaz:
https://doaj.org/article/58f7011880314bd7949ee22ba5661116
Autor:
Subham Dutta Chowdhury, Kausik Ghosh
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-44 (2021)
Abstract We count the number of independent solutions to crossing constraints of four point functions involving charged scalars and charged fermions in a CFT with large gap in the spectrum. To find the CFT data we employ recently developed analytical
Externí odkaz:
https://doaj.org/article/4383fad2b3884aad9a493dcb86cd6f04
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-103 (2021)
Abstract We study four-point functions of scalars, conserved currents, and stress tensors in a conformal field theory, generated by a local contact term in the bulk dual description, in two different causal configurations. The first of these is the s
Externí odkaz:
https://doaj.org/article/c69c06823ee14491ad80b02cb513befa
Autor:
Subham Dutta Chowdhury, Abhijit Gadde
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 1, Pp 1-41 (2021)
Abstract In this paper, we classify four-point local gluon S-matrices in arbitrary dimensions. This is along the same lines as [1] where four-point local photon S-matrices and graviton S-matrices were classified. We do the classification explicitly f
Externí odkaz:
https://doaj.org/article/1af7fffcf2224adb961a700bff55faa0
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 12, Pp 1-52 (2020)
Abstract We extend the analysis of [1] to study the Regge trajectories of the Mellin amplitudes of the 0- and 1-magnon correlators of the generalized Fishnet theory in d dimensions and one type of correlators of chiral fishnet theory in 4 dimensions.
Externí odkaz:
https://doaj.org/article/09be2d2044fb452bb95570ee42da56b7
Autor:
Soumangsu Chakraborty, Subham Dutta Chowdhury, Tushar Gopalka, Suman Kundu, Shiraz Minwalla, Amiya Mishra
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 4, Pp 1-43 (2020)
Abstract We explicitly construct every kinematically allowed three particle graviton- graviton-P and photon-photon-P S-matrix in every dimension and for every choice of the little group representation of the massive particle P. We also explicitly con
Externí odkaz:
https://doaj.org/article/8942dd68b7da4660a6cb2e88886373f1
Autor:
Subham Dutta Chowdhury, Abhijit Gadde, Tushar Gopalka, Indranil Halder, Lavneet Janagal, Shiraz Minwalla
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 2, Pp 1-170 (2020)
Abstract We study the space of all kinematically allowed four photon and four graviton S-matrices, polynomial in scattering momenta. We demonstrate that this space is the permutation invariant sector of a module over the ring of polynomials of the Ma
Externí odkaz:
https://doaj.org/article/00b20a9f879c4309bebc579b19dc5abf
Publikováno v:
SciPost Physics, Vol 13, Iss 3, p 051 (2022)
We develop crossing symmetric dispersion relations for describing 2-2 scattering of identical external particles carrying spin. This enables us to import techniques from Geometric Function Theory and study two sided bounds on low energy Wilson coe
Externí odkaz:
https://doaj.org/article/a1927a535eaa4e928b91b66da853ef77
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 10, Pp 1-46 (2019)
Abstract We study the Regge trajectories of the Mellin amplitudes of the 0-,1- and 2-magnon correlators of the Fishnet theory. Since fishnet theory is both integrable and conformal, the correlation functions are known exactly. We find that while for
Externí odkaz:
https://doaj.org/article/044e185a11c047a9ae980fea35fc6c6d