Results 41 to 50 of about 540 (118)

Positivity from J-Basis operators in the standard model effective Field Theory

Journal of High Energy Physics
In the effective field theory (EFT), the positivity bound on dim-8 effective operators tells us that the s 2 contribution in the scattering amplitude of 2-to-2 process geometrically corresponds to the convex cone composed of the ultraviolet (UV) states ...
Chengjie Yang, Zhe Ren, Jiang-Hao Yu
doaj   +1 more source

Measuring the polarization of boosted, hadronic W bosons with jet substructure observables

Journal of High Energy Physics
In this work, we present a new technique to measure the longitudinal and transverse polarization fractions of hadronic decays of boosted W bosons. We introduce a new jet substructure observable denoted as p θ , which is a proxy constructed purely out of ...
Songshaptak De, Vikram Rentala, William Shepherd   +2 more
doaj   +1 more source

Complete UV resonances of the dimension-8 SMEFT operators

Journal of High Energy Physics
The effective field theory approach parameterizes the low energy behaviors of all possible ultraviolet (UV) theories in a systematic way. One of the most important tasks is thus to find the connection between the effective operators and their UV origins.
Hao-Lin Li, Yu-Han Ni, Ming-Lei Xiao, Jiang-Hao Yu   +3 more
doaj   +1 more source

General form of effective operators from hidden sectors

Journal of High Energy Physics
We perform a model-independent analysis of the dimension-six terms that are generated in the low energy effective theory when a hidden sector that communicates with the Standard Model (SM) through a specific portal operator is integrated out.
Aqeel Ahmed, Zackaria Chacko, Ina Flood, Can Kilic, Saereh Najjari   +4 more
doaj   +1 more source

Neutrinoless double beta decay in multiple isotopes for fingerprints identification of operators and models

Journal of High Energy Physics
Neutrinoless double beta (0νββ) decay is the most promising way to determine whether neutrinos are Majorana particles. There are many experiments based on different isotopes searching for 0νββ decay.
Shao-Long Chen, Yu-Qi Xiao
doaj   +1 more source

Diversity in the pathway from medical student to specialist in the Netherlands: a retrospective cohort study. [PDF]

Lancet Reg Health Eur, 2023
Mulder L, Wouters A, Akwiwu EU, Koster AS, Ravesloot JH, Peerdeman SM, Salih M, Croiset G, Kusurkar RA.   +8 more
europepmc   +1 more source

Understanding the SM gauge group from SMEFT

Journal of High Energy Physics
We discuss heavy particles that can be used to pin down the faithful Standard Model (SM) gauge group and their patterns in the SM effective field theory (SMEFT). These heavy particles are not invariant under a specific ℤ 6 subgroup of SU(3) c × SU(2) L ×
Hao-Lin Li, Ling-Xiao Xu
doaj   +1 more source

A proof of concept for matchete: an automated tool for matching effective theories. [PDF]

Eur Phys J C Part Fields, 2023
Fuentes-Martín J, König M, Pagès J, Thomsen AE, Wilsch F.   +4 more
europepmc   +1 more source

Renormalization scheme factorization of one-loop Fierz identities

Journal of High Energy Physics
We present a proof of the factorization of renormalization scheme in one-loop-corrected Fierz identities. This scheme factorization facilitates the simultaneous transformation of operator basis and renormalization scheme using only relations between ...
Jason Aebischer, Marko Pesut, Zachary Polonsky   +2 more
doaj   +1 more source

Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions

Journal of High Energy Physics
We study di-Higgs production via gluon fusion at the high luminosity LHC in the presence of new physics, focusing on the $$b\overline{b }\gamma \gamma $$ final states.
Leandro Da Rold, Manuel Epele, Anibal D. Medina, Nicolás I. Mileo, Alejandro Szynkman   +4 more
doaj   +1 more source