Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Tytuł pozycji:

Soft bootstrap and supersymmetry

Tytuł:
Soft bootstrap and supersymmetry
Autorzy:
Henriette Elvang
Marios Hadjiantonis
Callum R. T. Jones
Shruti Paranjape
Temat:
Effective Field Theories
Scattering Amplitudes
Sigma Models
Supersymmetric Effective Theories
Nuclear and particle physics. Atomic energy. Radioactivity
QC770-798
Źródło:
Journal of High Energy Physics, Vol 2019, Iss 1, Pp 1-65 (2019)
Wydawca:
SpringerOpen, 2019.
Rok publikacji:
2019
Kolekcja:
LCC:Nuclear and particle physics. Atomic energy. Radioactivity
Typ dokumentu:
article
Opis pliku:
electronic resource
Język:
English
ISSN:
1029-8479
Relacje:
http://link.springer.com/article/10.1007/JHEP01(2019)195; https://doaj.org/toc/1029-8479
DOI:
10.1007/JHEP01(2019)195
Dostęp URL:
https://doaj.org/article/fefc385c60604a949d1bc5185bf3710b  Link otwiera się w nowym oknie
Numer akcesji:
edsdoj.fefc385c60604a949d1bc5185bf3710b
Czasopismo naukowe
Abstract The soft bootstrap is an on-shell method to constrain the landscape of effective field theories (EFTs) of massless particles via the consistency of the low-energy S-matrix. Given assumptions on the on-shell data (particle spectra, linear symmetries, and low-energy theorems), the soft bootstrap is an efficient algorithm for determining the possible consistency of an EFT with those properties. The implementation of the soft bootstrap uses the recently discovered method of soft subtracted recursion. We derive a precise criterion for the validity of these recursion relations and show that they fail exactly when the assumed symmetries can be trivially realized by independent operators in the effective action. We use this to show that the possible pure (real and complex) scalar, fermion, and vector exceptional EFTs are highly constrained. Next, we prove how the soft behavior of states in a supermultiplet must be related and illustrate the results in extended supergravity. We demonstrate the power of the soft bootstrap in two applications. First, for the N $$ \mathcal{N} $$ = 1 and N $$ \mathcal{N} $$ = 2 ℂℙ1 nonlinear sigma models, we show that on-shell constructibility establishes the emergence of accidental IR symmetries. This includes a new on-shell perspective on the interplay between N $$ \mathcal{N} $$ = 2 supersymmetry, low-energy theorems, and electromagnetic duality. We also show that N $$ \mathcal{N} $$ = 2 supersymmetry requires 3-point interactions with the photon that make the soft behavior of the scalar O(1) instead of vanishing, despite the underlying symmetric coset. Second, we study Galileon theories, including aspects of supersymmetrization, the possibility of a vector-scalar Galileon EFT, and the existence of higher-derivative corrections preserving the enhanced special Galileon symmetry. The latter is addressed both by soft bootstrap and by application of double-copy/KLT relations applied to higher-derivative corrections of chiral perturbation theory.

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies