Results 31 to 40 of about 56,080 (199)
Pion-pion scattering amplitude [PDF]
Physical Review D, 2005 We obtain reliable ππ scattering amplitudes consistent with experimental data, both at low and high energies, and fulfilling appropriate analyticity properties. We do this by first fitting experimental low energy [s^(1/2) ≤ (1.42 GeV] phase shifts and inelasticities with expressions that incorporate analyticity and unitarity.
Peláez Sagredo, José Ramón +1 more
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Scattering amplitudes in Lifshitz spacetime [PDF]
Classical and Quantum Gravity, 2014 We consider the calculation of scattering amplitudes in field theories dual to Lifshitz spacetimes. These amplitudes provide an interesting probe of the IR structure of the field theory; our aim is to use them to explore the observable consequences of the singularity in the spacetime.
Andrade, T., Ross, Simon F., Lei, Y.
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Scattering amplitudes of fermions on monopoles
Journal of High Energy Physics, 2023 Abstract We consider scattering processes involving massless fermions and ’t Hooft-Polyakov magnetic monopoles in a minimal SU(2) model and in the Grand Unified SU(5) theory. We construct expressions for on-shell amplitudes for these processes in the J = 0 partial wave using the spinor helicity basis consisting of single-particle ...
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A note on polytopes for scattering amplitudes [PDF]
Journal of High Energy Physics, 2012 24 pages, 22 ...
Arkani-Hamed, N +4 more
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Novel corrections to the momentum sum rule for nuclear structure functions
Physics Letters B, 2022 We address novel features of deep inelastic lepton scattering on nuclei at small Bjorken variable xBj. In this regime the lepton-nuclear cross section involves the interference between the standard lepton-quark scattering amplitude for the deep inelastic
Stanley J. Brodsky +2 more
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Transient chaos analysis of string scattering
Journal of High Energy Physics, 2022 It has long been thought that a highly excited string can be regarded as a black hole: the correspondence principle between strings and a black hole, while recent studies found that black holes are characterized by chaos.
Koji Hashimoto +2 more
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Surface-Integral Approach to the Coulomb Few-Body Scattering Problem
EPJ Web of Conferences, 2010 We present main features of a surface-integral approach to the Coulomb few-body scattering problem. This approach is valid for both short-range and Coulombic longe-range interactions.
Stelbovics A.T. +3 more
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Volume oscillation and acoustical scattering of a gas bubble [PDF]
MATEC Web of Conferences, 2019 The exact solution of a gas bubble’ volume was obtained based on volume oscillation of a gas bubble. The volume pulsation, acoustic impedance, scattering pressure of a gas bubble, acoustical power of scattering and acoustical scattering cross section of ...
Ma Yan, Ma Tao, Zhao Feiyan
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Near-threshold hadron scattering with effective field theory [PDF]
EPJ Web of Conferences. When an exotic hadron locates near the threshold with the channel couplings, the internal structure of the exotic hadron is related to the scattering length. To incorporate the threshold effect, the Flatté amplitude has been often used to determine the
Sone Katsuyoshi, Hyodo Tetsuo
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Scattering amplitudes from dispersive iterations of unitarity
Journal of High Energy Physics, 2023 We present and numerically implement a computational method to construct relativistic scattering amplitudes that obey analyticity, crossing, elastic and inelastic unitarity in three and four spacetime dimensions.
Piotr Tourkine, Alexander Zhiboedov
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