Non-perturbative effects in Higgs boson decays to electroweak vector bosons and photons
Journal of High Energy PhysicsWe estimate the magnitude of the leading non-perturbative QCD corrections to the decays of the Higgs boson to the γZ and γγ final states. These corrections originate from the light-quark contributions to such decays.
Alexander Khodjamirian +2 more
doaj +1 more source
A particle on a ring or: how I learned to stop worrying and love θ-vacua
Journal of High Energy PhysicsRecently, Ai, Cruz, Garbrecht, and Tamarit (ACGT) [1–3] claimed that the strong CP problem can be avoided by adopting a particular order of limits in the Euclidean path integral, in which the spacetime volume is taken to infinity before summing over all ...
Mohammad Aghaie, Ryosuke Sato
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Using the Virasoro conditions to revise the model of a quark-gluon string fragmentation
Journal of High Energy PhysicsQuark-gluon string fragmentation is usually seen as a universal process with its physics remaining unchanged for different colliding systems and center-of-mass energy.
R. V. Nikolaenko
doaj +1 more source
Power corrections to the heavy electron form factor
Journal of High Energy PhysicsWe study the first power correction to the heavy electron form factor in QED and show that it factorizes as a derivative operator. We discuss the result in QED with no light fermions, where the first power correction can be written explicitly in terms of
Aniruddha Venkata
doaj +1 more source
Mechanical properties of proton using flavor-decomposed gravitational form factors
Journal of High Energy PhysicsWe investigate the mechanical properties of the proton by extracting its flavor-decomposed gravitational form factors (GFFs) using Light-Cone QCD sum rules (LCSR).
Zeinab Dehghan, F. Almaksusi, K. Azizi
doaj +1 more source
Revising the mass of light hybrid mesons: NLO QCD sum rules point to ϕ(2170) as a prime candidate
Journal of High Energy PhysicsWe present a comprehensive next-to-leading order (NLO) QCD sum rule analysis for light hybrid mesons with J PC = 1 −− , incorporating condensates up to dimension-8 and NLO corrections to the perturbative, gluon condensate, and four-quark condensate ...
Shuang-Hong Li +3 more
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Extracting a toponium signal at the LHC with spin and quantum information tools
Journal of High Energy PhysicsWe investigate near-threshold top-antitop production at the LHC, focusing on the impact of toponium formation on spin correlations and quantum information properties of the final state.
Laura Antozzi +8 more
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All-gluon amplitudes with off-shell recursion in multiplet bases
Journal of High Energy PhysicsThe efficient computation of color-summed QCD amplitudes at high parton multiplicities remains a central challenge for precision collider predictions.
Oskar Bolinder +2 more
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The electromagnetic form factors of heavy-light pseudo-scalar and vector mesons
Journal of High Energy PhysicsWe systematically investigate the electromagnetic form factors of heavy-light pseudo-scalar and vector mesons within the Dyson-Schwinger/Bethe-Salpeter equations framework for the first time.
Yin-Zhen Xu
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Pre-equilibrium photons from the early stages of heavy-ion collisions
Journal of High Energy PhysicsWe use QCD kinetic theory to compute photon production in the chemically equilibrating Quark-Gluon Plasma created in the early stages of high-energy heavy-ion collisions.
Oscar Garcia-Montero +3 more
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