Results 11 to 20 of about 1,831,541 (219)

Exploring inelasticity in the S-matrix Bootstrap

Physics Letters B, 2023
The modern S-Matrix Bootstrap provides non-perturbative bounds on low-energy aspects of scattering amplitudes, leveraging the constraints of unitarity, analyticity and crossing.
António Antunes, Miguel S. Costa, José Pereira   +2 more
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On the S-matrix of Liouville theory

Journal of High Energy Physics, 2021
The S-matrix for each chiral sector of Liouville theory on a cylinder is computed from the loop expansion of correlation functions of a one-dimensional field theory on a circle with a non-local kinetic energy and an exponential potential.
George Jorjadze, Stefan Theisen
doaj   +1 more source

Fabrication of ultra-high strength magnesium alloys over 540 MPa with low alloying concentration by double continuously extrusion

Journal of Magnesium and Alloys, 2018
We prepare a new type of patented biodegradable biomedical Mg–Nd–Zn–Zr (JDBM) alloy system and impose double continuously extrusion (DCE) processing. The lowest processing temperature is 250 °C for JDBM-2.1Nd and 310 °C for JDBM-2.8Nd, which increases ...
Hua Huang, Hongwei Miao, Guangyin Yuan, Zhongchang Wang, Wenjiang Ding   +4 more
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Adding flavour to the S-matrix bootstrap

Journal of High Energy Physics, 2018
We explore the S-matrices of gapped, unitary, Lorentz invariant quantum field theories with a global O(N) symmetry in 1+1 dimensions. We extremize various cubic and quartic couplings in the two-to-two scattering amplitudes of vector particles. Saturating
Lucía Córdova, Pedro Vieira
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EFT anomalous dimensions from the S-matrix

Journal of High Energy Physics, 2020
We use the on-shell S-matrix and form factors to compute anomalous dimensions of higher dimension operators in the Standard Model Effective Field Theory. We find that in many instances, these computations are made simple by using the on-shell method.
Joan Elias Miró, James Ingoldby, Marc Riembau   +2 more
doaj   +1 more source

Shockwave S-matrix from Schwarzian quantum mechanics

Journal of High Energy Physics, 2018
Schwarzian quantum mechanics describes the collective IR mode of the SYK model and captures key features of 2D black hole dynamics. Exact results for its correlation functions were obtained in [1]. We compare these results with bulk gravity expectations.
Ho Tat Lam, Thomas G. Mertens, Gustavo J. Turiaci, Herman Verlinde   +3 more
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Non-local matrix elements in B (s) → {K (*) , ϕ}ℓ + ℓ −

Journal of High Energy Physics, 2021
We revisit the theoretical predictions and the parametrization of non-local matrix elements in rare B ¯ s → K ¯ ∗ ϕ ℓ + ℓ − $$ {\overline{B}}_{(s)}\to \left\{{\overline{K}}^{\left(\ast \right)},\phi \right\}{\mathrm{\ell}}^{+}{\mathrm{\ell}}^{-} $$ and B
Nico Gubernari, Danny van Dyk, Javier Virto   +2 more
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s-Goodness for Low-Rank Matrix Recovery

Abstract and Applied Analysis, 2013
Low-rank matrix recovery (LMR) is a rank minimization problem subject to linear equality constraints, and it arises in many fields such as signal and image processing, statistics, computer vision, and system identification and control.
Lingchen Kong, Levent Tunçel, Naihua Xiu   +2 more
doaj   +1 more source

The L ∞-algebra of the S-matrix

Journal of High Energy Physics, 2019
We point out that the one-particle-irreducible vacuum correlation functions of a QFT are the structure constants of an L ∞-algebra, whose Jacobi identities hold whenever there are no local gauge anomalies.
Alex S. Arvanitakis
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S-matrix singularities and CFT correlation functions

Journal of High Energy Physics, 2017
In this note, we explore the correspondence between four-dimensional flat space S-matrix and two-dimensional CFT proposed by Pasterski et al. We demonstrate that the factorisation singularities of an n-point cubic diagram reproduces the AdS Witten ...
Carlos Cardona, Yu-tin Huang
doaj   +1 more source