Results 21 to 30 of about 9,521 (182)
A liquid hydrogen target was bombarded by negative pions of energies 260. 317, 371, and 427 Mev. Positive pions from the reaction pi /sup -/ + p yields pi /sup +/ + pi /sup -/ + n were dete cted by the use of a counter telescope, that selected the pi /sup +/ by its characteristic pi - mu decay.
Perkins, Walton A. +3 more
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The modified effective range formulas for S- and P-wave pion-pion scattering which contain the effect of nucleon closed loops are derived using the chain approximation. These are extensions along the lines of Chew and Mandelstam, and Okubo and Miyamoto.
Shin Ishida, Kazo Nakazawa
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THEORETICAL ASPECTS OF THE PION-PION INTERACTION [PDF]
We give a brief review of the theoretical description of low energy pion-pion scattering by the combined use of Chiral Perturbation Theory and Roy equations, an update of the Regge parametrization of ππ cross sections at high energies, and a short discussion of the scalar radius of the pion.
Caprini, Irinel +2 more
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Pion PDFs confronted by fixed-target charmonium production
The pion, as the Goldstone boson of the strong interaction, is the lightest QCD bound state and responsible for the long-range nucleon-nucleon interaction inside the nucleus.
Wen-Chen Chang +5 more
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Perioperative posterior ischemic optic neuropathy (PION) after open aortic surgery
Perioperative posterior ischemic optic neuropathy (PION) is a rare but potentially devastating condition. A correlation of PION with major surgical procedures has been established, particularly in cases of spine and cardiovascular surgery.
Jonathan Lovis +5 more
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Pion-Pion Interaction and Pion Production in Pion-Nucleon Collision [PDF]
The evidence for the n;-n; interaction is investigated by considering the angular distribution of nucleon in pion production by pion-nucleon collision. It is shown that it will be quite difficult to understand the sharp forward angular distribution of nucleon without considering n;-n; interaction.
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Pion Production in Pion Nucleon Scattering and Pion-Pion Interaction [PDF]
The reaction pi + N yields 2 pi + N is discussed. The production process is assumed to take place mainly via pi - pi interactions, which are studied using an extrapolation formula (G. F. Chew and F. E. Low, Phys. Rev., 113: 1640 (1959)). A program giving a consistent explanation to the process at 0.3 to 1.5 Bev is presented.
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4-momentum conservation as the principal framework for mesonic decay: The case of helium-5-lambda [PDF]
Negative-pion and neutral-pion mesonic decays of the hypernucleus HeΛ5 are investigated within two-body and three-body relativistic kinematics in the rest frame of the hypernucleus. 4-momentum conservation fully constrains the two-body decay, giving rise
Emile Meoto, Mantile L. Lekala
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Pion-pion interactions in pi -N processes are discussed, using a pi / sup +/ and pi /sup -/ beam at 1.03 Bev/c. (L.T.W.)
Anderson, Jerry A. +4 more
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Generalized parton distributions of pion for non-zero skewness in AdS/QCD
We study the generalized parton distributions (GPDs) of pion for non-zero skewness by considering the leading |qq¯〉 Fock state component. Inspired from AdS/QCD light-front wave functions, we calculate the pion GPDs.
Navdeep Kaur +3 more
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