Results 21 to 30 of about 515,250 (294)

Measuring the anomalous quartic gauge couplings in the W + W − → W + W − process at muon collider using artificial neural networks

Journal of High Energy Physics, 2022
The muon collider provides a unique opportunity to study the vector boson scattering processes and dimension-8 operators contributing to anomalous quartic gauge couplings (aQGCs).
Ji-Chong Yang, Xue-Ying Han, Zhi-Bin Qin, Tong Li, Yu-Chen Guo   +4 more
doaj   +1 more source

Displaced searches for light vector bosons at Belle II

Journal of High Energy Physics, 2022
With a design luminosity of 50 ab −1 and detectors with tracking capabilities extending beyond 1 m, the Belle II experiment is the perfect laboratory for the search of particles that couple weakly to the Standard Model and have a characteristic decay ...
Triparno Bandyopadhyay, Sabyasachi Chakraborty, Sokratis Trifinopoulos   +2 more
doaj   +1 more source

Resolving the muon g − 2 tension through Z′-induced modifications to σ had

Journal of High Energy Physics, 2023
The QED hadronic vacuum polarization function plays an important role in the determination of precision electroweak observables and of the anomalous magnetic moment of the muon.
Nina M. Coyle, Carlos E. M. Wagner
doaj   +1 more source

Axial vectors in DarkCast

Journal of High Energy Physics, 2022
In this work, we explore new spin-1 states with axial couplings to the standard model fermions. We develop a data-driven method to estimate their hadronic decay rates based on data from τ decays and using SU(3)flavor symmetry.
Chaja Baruch, Philip Ilten, Yotam Soreq, Mike Williams   +3 more
doaj   +1 more source

On (g − 2) μ from gauged U(1) X

Journal of High Energy Physics, 2022
We investigate an economical explanation for the (g − 2) μ anomaly with a neutral vector boson from a spontaneously broken U(1) X gauge symmetry. The Standard Model fermion content is minimally extended by 3 right-handed neutrinos.
Admir Greljo, Peter Stangl, Anders Eller Thomsen, Jure Zupan   +3 more
doaj   +1 more source

New constraint on dark photon at T2K off-axis near detector

Journal of High Energy Physics, 2023
The T2K experiment is one of the most powerful long-baseline experiments to investigate neutrino oscillations. The off-axis near detector called ND280 is installed 280 m downstream from the neutrino production target to measure the neutrino energy ...
Takeshi Araki, Kento Asai, Tomoya Iizawa, Hidetoshi Otono, Takashi Shimomura, Yosuke Takubo   +5 more
doaj   +1 more source

Leptophilic gauge bosons at lepton beam dump experiments

Journal of High Energy Physics, 2023
It has been recently known that we can use beams of future lepton colliders, the International Linear Collider (ILC), the Compact Linear Collider (CLIC), and the muon collider, for beam dump experiment if a shield and a detector are installed behind the ...
Takeo Moroi, Atsuya Niki
doaj   +1 more source

Terrestrial detection of hidden vectors produced by solar nuclear reactions

Journal of High Energy Physics, 2023
Solar nuclear reactions can occasionally produce sub-MeV elusive beyond the Standard Model particles that escape the solar interior without further interactions. This study focuses on massive spin-one particles.
Francesco D’Eramo, Giuseppe Lucente, Newton Nath, Seokhoon Yun   +3 more
doaj   +1 more source

Flatland: abelian extensions of the Standard Model with semi-simple completions

Journal of High Energy Physics, 2022
We parametrise the space of all possible flavour non-universal u $$ \mathfrak{u} $$ (1) X extensions of the Standard Model that embed inside anomaly-free semi-simple gauge theories, including up to three right-handed neutrinos.
Joe Davighi, Joseph Tooby-Smith
doaj   +1 more source

One Loop Renormalizability of Spontaneously Broken Gauge Theory with a Product of Gauge Groups on Noncommutative Spacetime: the U(1) x U(1) Case [PDF]

, 2002
A generalization of the standard electroweak model to noncommutative spacetime would involve a product gauge group which is spontaneously broken. Gauge interactions in terms of physical gauge bosons are canonical with respect to massless gauge bosons as ...
, , A. Bichl, A. Matusis, A. Matusis, A. Matusis, A. Micu, A.A. Bichl, A.A. Bichl, D. Brace, For discussions on the unitarity problem in the latter work, For efforts towards renormalization to all orders, For reviews, L. Griguolo, M. Van Raamsdonk, M.M. Sheikh-Jabbari, N. Seiberg, N. Seiberg, R. Wulkenhaar, R.J. Szabo, S. Minwalla, S. Sarkar, T. Krajewski, Y. Liao, Yi Liao   +24 more
core   +2 more sources