Results 71 to 80 of about 51,239 (205)

Electroweak Precision Observables within a Fourth Generation Model with General Flavour Structure

, 2012
We calculate the contributions to electroweak precision observables (EWPOs) due to a fourth generation of fermions with the most general (quark-)flavour structure (but assuming Dirac neutrinos and a trivial flavour structure in the lepton sector).
A. Czarnecki, A. Djouadi, A. Djouadi, A. Freitas, A. Freitas, A. Rozanov, A. Sirlin, A. Soni, A. Soni, A.B. Arbuzov, A.J. Buras, A.J. Buras, B. Holdom, B. Holdom, B.A. Kniehl, B.A. Kniehl, B.A. Kniehl, D. Bardin, D.Y. Bardin, F. Aguila del, F. Halzen, G. Barenboim, G. Degrassi, G. Degrassi, G. Degrassi, G. Montagna, G.C. Branco, G.D. Kribs, H. Lacker, H.-J. He, I. Maksymyk, J. Alwall, J. Erler, J. Fleischer, J. Rohrwild, K. Belotsky, K. Chetyrkin, K. Chetyrkin, K. Nakamura, M. Awramik, M. Awramik, M. Awramik, M. Bobrowski, M. Bohm, M. Böhm, M. Faisst, M. Maltoni, M. Wiebusch, M.E. Peskin, M.S. Chanowitz, O. Eberhardt, P. González, P.H. Frampton, R. Barbieri, R. Barbieri, R. Harlander, T. Hahn, T. Hahn, T. Hahn, V. Novikov, V. Novikov, V.A. Novikov, W.-S. Hou, W.-S. Hou, W.-Y. Keung   +64 more
core   +1 more source

Notes on Characterizations of 2d Rational SCFTs: Algebraicity, Mirror Symmetry, and Complex Multiplication

Fortschritte der Physik, Volume 73, Issue 1-2, February 2025.
Abstract S. Gukov and C. Vafa proposed a characterization of rational N=(1,1)$N=(1,1)$ superconformal field theories (SCFTs) in 1+1$1+1$ dimensions with Ricci‐flat Kähler target spaces in terms of the Hodge structure of the target space, extending an earlier observation by G. Moore.
Abhiram Kidambi, Masaki Okada, Taizan Watari   +2 more
wiley   +1 more source

Probing positivity at the LHC with exclusive photon-fusion processes

Journal of High Energy Physics
By tagging one or two intact protons in the forward direction, it is possible to select and measure exclusive photon-fusion processes at the LHC. The same processes can also be measured in heavy ion collisions, and are often denoted as ultraperipheral ...
Jiayin Gu, Chi Shu
doaj   +1 more source

Using DUNE to shed light on the electromagnetic properties of neutrinos

Journal of High Energy Physics, 2022
We study future DUNE sensitivity to various electromagnetic couplings of neutrinos, including magnetic moments, milli-charges, and charge radii. The DUNE PRISM capabilities play a crucial role in constraining the electron flavored couplings. We find that
Varun Mathur, Ian M. Shoemaker, Zahra Tabrizi   +2 more
doaj   +1 more source

Fractals and Chaotic Solitons Phenomena in Conformable Coupled Higgs System

Discrete Dynamics in Nature and Society, Volume 2025, Issue 1, 2025.
The current study aims to construct and examine a new plethora of soliton solutions for the conformable coupled Higgs system (CCHS), a system of nonlinear fractional partial differential equations (NFPDEs) which was initially presented utilize a systematic structure to consider the responsive mechanism of the Higgs system in the electroweak theory ...
Naveed Iqbal, Wael W. Mohammed, Amjad E. Hamza, Shah Hussain, Yousef Jawarneh, Rasool Shah, Ahmed Ezzat Matouk   +6 more
wiley   +1 more source

Complementary constraints on Zb b ¯ $$ Zb\overline{b} $$ couplings at the LHC

Journal of High Energy Physics, 2023
We propose a new strategy to probe the Z boson couplings to bottom and charm quarks at the LHC. In this work we mainly focus on the case of bottom quarks. Here, the Z boson is produced in association with two b-jets and decays to electrons or muons.
Fady Bishara, Zhuoni Qian
doaj   +1 more source

Impact of atomic parity violation measurements on precision electroweak physics [PDF]

Physical Review D, 1996
11 pages, latex, 1 uuencoded figure sent ...
openaire   +3 more sources

Triboson production in the SMEFT

Journal of High Energy Physics
We study the production of three electroweak gauge bosons at the LHC, in the effective field theory of the standard model, at dimension six and next-to-leading order in QCD.
Eugenia Celada, Gauthier Durieux, Ken Mimasu, Eleni Vryonidou   +3 more
doaj   +1 more source

Primer on Axion Physics

Annalen der Physik, Volume 536, Issue 1, January 2024.
A primer on axion physics, emphasizing an intuitive understanding of why the axion solves the strong CP problem. Abstract The canonical axion potential is reviewed, with an emphasis on the field theory underlying radial and angular modes of complex scalar fields.
Felix Yu
wiley   +1 more source

Energy-peak based method to measure top quark mass via B-hadron decay lengths

Journal of High Energy Physics, 2023
We develop a method for the determination of the top quark mass using the distribution of the decay length of the B-hadrons originating from its decay. This technique is based on our earlier observation regarding the location of the peak of the b quark ...
Kaustubh Agashe, Sagar Airen, Roberto Franceschini, Joseph Incandela, Doojin Kim, Deepak Sathyan   +5 more
doaj   +1 more source