Results 111 to 120 of about 1,397,052 (220)

Birdtracks of exotic SU(N) color structures

Journal of High Energy Physics
I introduce a systematic procedure for constructing complete and linearly independent sets of color structures for interactions of fields transforming under exotic representations of SU(N), in particular the SU(3) gauge group of QCD.
Thorsten Ohl
doaj   +1 more source

Semi-supervised permutation invariant particle-level anomaly detection

Journal of High Energy Physics
The development of analysis methods to distinguish potential beyond the Standard Model phenomena in a model-agnostic way can significantly enhance the discovery reach in collider experiments. However, the typical machine learning (ML) algorithms employed
Gabriel Matos, Elena Busch, Ki Ryeong Park, Julia Gonski   +3 more
doaj   +1 more source

Improving the performance of weak supervision searches using data augmentation

Journal of High Energy Physics
Weak supervision combines the advantages of training on real data with the ability to exploit signal properties. However, training a neural network using weak supervision often requires an excessive amount of signal data, which severely limits its ...
Zong-En Chen, Cheng-Wei Chiang, Feng-Yang Hsieh   +2 more
doaj   +1 more source

A simplified model of Heavy Vector Singlets for the LHC and future colliders

Journal of High Energy Physics
We study a simplified model of two colourless heavy vector resonances in the singlet representation of SU(2) L , with zero and unit hypercharge. We discuss mixing with the Standard Model gauge bosons due to electroweak symmetry breaking, semi-analytic ...
Michael J. Baker, Timothy Martonhelyi, Andrea Thamm, Riccardo Torre   +3 more
doaj   +1 more source

New supersymmetric gauge theories: the double tensor multiplet and its interactions [PDF]

, 2000
Friedemann Brandt, Friedemann Brandt
openalex   +1 more source

Solving the strong CP problem with massless grand-color quarks

Journal of High Energy Physics
We propose a solution to the strong CP problem that specifically relies on massless quarks and has no light axion. The QCD color group SU(3) c is embedded into a larger, simple gauge group (grand-color) where one of the massless, colored fermions enjoys ...
Ravneet Bedi, Tony Gherghetta, Keisuke Harigaya   +2 more
doaj   +1 more source

Minimal complete tri-hypercharge theories of flavour

Journal of High Energy Physics
The tri-hypercharge proposal introduces a separate gauged weak hypercharge assigned to each fermion family as the origin of flavour. This is arguably one of the simplest setups for building “gauge non-universal theories of flavour” or “flavour ...
Mario Fernández Navarro, Stephen F. King, Avelino Vicente   +2 more
doaj   +1 more source

Precision electroweak tensions and a dark photon

Journal of High Energy Physics
We examine how different assumptions about the hadronic vacuum polarization, the W boson mass, and the forward-backward asymmetry in b-quarks at the Z pole can impact the precision electroweak fit.
Keisuke Harigaya, Evan Petrosky, Aaron Pierce   +2 more
doaj   +1 more source

SHIFT@LHC: Searches for new physics with shifted interaction on a fixed target at the Large Hadron Collider

Journal of High Energy Physics
New low-mass particles with very small couplings to standard model particles that travel significant distances before decaying are interesting candidates to address some of the most intriguing questions of modern physics.
Jeremi Niedziela
doaj   +1 more source

Searching for axial neutral current non-standard interactions of neutrinos by DUNE-like experiments

Journal of High Energy Physics
The increasingly precise neutrino experiments raise the hope for searching for new physics through studying the impact of Neutral Current (NC) Non-Standard Interactions (NSI) of neutrinos with matter fields.
S. Abbaslu, M. Dehpour, Y. Farzan, S. Safari   +3 more
doaj   +1 more source