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Primer on Axion Physics

open access: yesAnnalen 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

Theoretical Summary, Electroweak Physics [PDF]

open access: yes, 2000
Aspects of theoretical electroweak physics are summarized, including the status of electroweak radiative corrections, the hadronic contribution to the running of alpha, global fits to precision data and their implication for testing the standard model ...
Langacker, P G
core  

Hint for a Minimal Interaction Length in e+e−⟶γγ Annihilation in Total Cross Section of Center‐of‐Mass Energies 55‐207 GeV

open access: yesAdvances in High Energy Physics, Volume 2024, Issue 1, 2024.
The measurements of the total cross section of the e+e−⟶γγ(γ) reaction from the VENUS, TOPAS, OPAL, DELPHI, ALEPH, and L3 collaborations, collected between 1989 and 2003, are used to perform a χ2 test to validate the current quantum electrodynamics (QED) theory and search for possible deviations with the direct contact term annihilation. By observing a
Yutao Chen   +3 more
wiley   +1 more source

Probing positivity at the LHC with exclusive photon-fusion processes

open access: yesJournal 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

Electroweak precision data as a gateway to light higgsinos

open access: yesJournal of High Energy Physics
We investigate the prospects of probing weak-scale higgsinos through electroweak precision measurements at a future e + e − collider. In the Minimal Supersymmetric Standard Model, higgsinos mix with winos and binos after electroweak symmetry breaking ...
Natsumi Nagata, Genta Osaki
doaj   +1 more source

Linear Standard Model extensions in the SMEFT at one loop and Tera-Z

open access: yesJournal of High Energy Physics
Linear Standard Model (SM) extensions, defined as new particles that can couple linearly to SM fields, form a motivated and finite set of simplified models for exploring phenomenology Beyond the SM (BSM).
John Gargalionis   +3 more
doaj   +1 more source

An EWPD SMEFT likelihood for the LHC — and how to improve it with measurements of W and Z boson properties

open access: yesJournal of High Energy Physics
This paper presents a computer code for analyzing electroweak precision data (EWPD) in the framework of the Standard Model Effective Field Theory (SMEFT), highlights the importance of recent ATLAS and CMS precision measurements, and introduces a novel ...
Hannes Mildner
doaj   +1 more source

B anomalies under the lens of electroweak precision

open access: yesJournal of High Energy Physics, 2020
The measurements carried out at LEP and SLC projected us into the precision era of electroweak physics. This has also been relevant in the theoretical interpretation of LHCb and Belle measurements of rare B semileptonic decays, paving the road for new ...
Lina Alasfar   +4 more
doaj   +1 more source

Precision electroweak physics at the LHeC and FCC-eh

open access: yes, 2022
The proposed electron-proton collider experiments LHeC and FCC-eh at CERN are the highest resolution microscopes that can be realised in the present century and they would represent a really unique research facility. We exploit simulated neutral-current and charged-current deep-inelastic scattering data of the LHeC and the FCC-eh and examine their ...
Britzger, D., Klein, M., Spiesberger, H.
openaire   +3 more sources

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