Results 71 to 80 of about 32,795 (203)

Drell-Yan production in third-generation gauge vector leptoquark models at NLO+PS in QCD

open access: yesJournal of High Energy Physics, 2023
Motivated by the long-standing hints of lepton-flavour non-universality in the b → cℓν and b → sℓ + ℓ − channels, we study Drell-Yan ditau production at the Large Hadron Collider (LHC).
Ulrich Haisch   +2 more
doaj   +1 more source

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

NNPDFpol2.0: a global determination of polarised PDFs and their uncertainties at next-to-next-to-leading order

open access: yesJournal of High Energy Physics
We present NNPDFpol2.0, a new set of collinear helicity parton distribution functions (PDFs) of the proton based on legacy measurements of structure functions in inclusive neutral-current longitudinally polarised deep-inelastic scattering (DIS), and of W
Juan Cruz-Martinez   +8 more
doaj   +1 more source

On the three-point order parameters of chiral symmetry breaking

open access: yesJournal of High Energy Physics, 2023
The nonlocal order parameters of the QCD chiral symmetry breaking, namely the nonanomalous three-point Green functions of the quark bilinears belonging to the odd intrinsic parity sector, are studied within the framework of the Resonance chiral theory ...
Tomáš Kadavý   +2 more
doaj   +1 more source

Inclusive Search for Squarks and Gluinos Production at CDF [PDF]

open access: yes, 2007
We present preliminary results on a search for squarks and gluinos in proton-antiproton collisions with a center-of-mass energy of 1.96 TeV and based on 1.1 fb-1 of data collected by the CDF detector in the Tevatron Run II.
D'Onofrio, Monica
core   +1 more source

Mesonic Correlation Functions in the Random Instanton Vacuum

open access: yes, 1993
A general model-independent discussion of mesonic correlation functions is given. We derive new inequalities, including one stronger than Weingarten's inequality.
Balitsky   +33 more
core   +2 more sources

Large Lorentz Scalar and Vector Potentials in Nuclei [PDF]

open access: yes, 1999
In nonrelativistic models of nuclei, the underlying mass scales of low-energy quantum chromodynamics (QCD) are largely hidden. In contrast, the covariant formulations used in relativistic phenomenology manifest the QCD scales in nuclei through large ...
Furnstahl, R. J., Serot, Brian D.
core   +2 more sources

Higgs‐induced screening mechanisms in scalar‐tensor theories

open access: yesAnnals of the New York Academy of Sciences, Volume 1531, Issue 1, Page 95-103, January 2024.
Abstract We consider the theory of a light conformally coupled scalar field, that is, one that is coupled directly to the Ricci scalar of the gravitational sector. This theory can be written equivalently as one of a light scalar that is coupled to the Standard Model of particle physics with a particular combination of Higgs‐portal couplings.
Clare Burrage, Peter Millington
wiley   +1 more source

Polarised cross sections for vector boson production with Sherpa

open access: yesJournal of High Energy Physics
Measurements of vector boson polarisation in vector boson production processes offer a powerful probe of the electroweak symmetry breaking mechanism, scrutinising the Standard Model and new physics scenarios alike. Since massive vector bosons can only be
Mareen Hoppe   +2 more
doaj   +1 more source

Planar three-loop master integrals for 2 → 2 processes with one external massive particle

open access: yesJournal of High Energy Physics, 2022
We present analytic results for the two tennis-court integral families relevant to 2 → 2 scattering processes involving one massive external particle and massless propagators in terms of Goncharov polylogarithms of up to transcendental weight six.
Dhimiter D. Canko, Nikolaos Syrrakos
doaj   +1 more source

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