240 citations · 1.5k across the 50 of their papers we have counts for
50 papers
New Soft Theorems for Two-Scalar Sigma Models
Karol Kampf, Jiri Novotny, Mikhail Shifman +1
In this paper, we study the scattering amplitudes and soft theorems for the sigma models with two scalars. We show that if the particles are Goldstone bosons, then you necessarily…
An All-loop Soft Theorem for Pions
Christoph Bartsch, Karol Kampf, Jiri Novotny +1
In this letter, we discuss a generalization of the Adler zero to loop integrands in the planar limit of the non-linear sigma model (NLSM). While possible to maintain at one…
Goldstone bosons on celestial sphere and conformal soft theorems
Karol Kampf, Jiri Novotny, Jaroslav Trnka +1
In this paper, we study celestial amplitudes of Goldstone bosons and conformal soft theorems. Motivated by the success of soft bootstrap in momentum space and the important role of…
On the three-point order parameters of chiral symmetry breaking
Tomas Kadavy, Karol Kampf, Jiri Novotny
The nonlocal order parameters of the QCD chiral symmetry breaking, namely the nonanomalous three-point Green functions of the quark bilinears belonging to the odd intrinsic parity…
Extended DBI and its generalizations from graded soft theorems
Karol Kampf, Jiri Novotny, Petr Vasko
We analyze a theory known as extended DBI, which interpolates between DBI and the non-linear sigma model and represents a nontrivial example of theories with…
Multi-spin soft bootstrap and scalar-vector Galileon
Karol Kampf, Jiri Novotny, Filip Preucil +1
We use the amplitude soft bootstrap method to explore the space of effective field theories (EFT) of massless vectors and scalars. It is known that demanding vanishing soft limits…