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The ππ interaction in nuclear matter from a study of the πA→ππA′ reactions

Autor: F. Bonutti, P. Camerini, E. Fragiacomo, N. Grion, R. Rui, J.T. Brack, L. Felawka, E.F. Gibson, G. Hofman, M. Kermani, E.L. Mathie, R. Meier, D. Ottewell, K. Raywood, M.E. Sevior, G.R. Smith, R. Tacik

Publikováno v: Nuclear Physics A. 677:213-240

The pion-production reactions $\pi^+ A \to \pi^+\pi^{\pm} A'$ were studied on $^{2}H$, $^{12}C$, $^{40}Ca$, and $^{208}Pb$ nuclei at an incident pion energy of $T_{\pi^{+}}$=283 MeV. Pions were detected in coincidence using the CHAOS spectrometer. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7b1a4e9f1d1f3e0fc3a846a961e2368
https://doi.org/10.1016/s0375-9474(00)00286-4

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ππ→ππcross sections near threshold

Publikováno v: Physical Review C. 58:3431-3441

An analysis of new data for the reaction π±p→π±π+n at incident energies between 223 and 284 MeV is presented. π+π− cross sections are obtained via Goebel-Chew-Low techniques by extrapolation to the pion pole using the pseudoperipheral appr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::faff8dba28683356651b9ebff19e5187
https://doi.org/10.1103/physrevc.58.3431

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π+ → π+π± on deuterium at Tπ+ = 283 MeV

Autor: E. L. Mathie, Jeffrey Brack, S. McFarland, E. Fragiacomo, E. F. Gibson, N. Grion, Rinaldo Rui, F. Bonutti, R. Tacik, R. Meier, G. R. Smith, M. Vicente-Vacas, M. E. Sevior, G. Hofman, D.F. Ottewell, Paolo Camerini, M. Kermani, L. Felawka, K. Raywood

Publikováno v: Nuclear Physics A. 638:729-746

New experimental results on the π+d → π+π−pp and π+d → π+π+nn reactions at Tπ1 = 283 MeV are presented. In-plane coincidence data were taken with the CHAOS spectrometer using pions from the M11 channel at TRIUMF. Because of the quasi-fre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4d5daa729108bb6ace5d3628a67eb7b0
https://doi.org/10.1016/s0375-9474(98)00424-2

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Spin-isovector giant resonances induced by(n,p)reactions on heavy nuclei

Publikováno v: Physical Review C. 57:3191-3202

Double differential cross sections from the ${}^{120}\mathrm{Sn}{(n,p)}^{120}\mathrm{In}$ and ${}^{181}\mathrm{Ta}{(n,p)}^{181}\mathrm{Hf}$ reactions at 298 MeV and the ${}^{238}\mathrm{U}{(n,p)}^{238}\mathrm{Pa}$ reaction at 318 MeV have been measur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ebd5234c61b7b6b4e587d7a3e2bb0734
https://doi.org/10.1103/physrevc.57.3191

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Determination of the π±p→π±π+n Cross Section Near Threshold

Autor: A. Ambardar, G. J. Hofman, Jeffrey Brack, M. E. Sevior, D.F. Ottewell, M. Pavan, A. Feltham, D. Vetterli, J.B. Lange, K. Raywood, Geoffrey Smith, R.R. Johnson, F. A. Duncan, G. A. C. Jones

Publikováno v: Physical Review Letters. 80:1597-1600

Though widely successful in particle physics, QCD is notoriously difficult to apply at low energies. However, with the development of chiral perturbation theory (ChPT) which exploits the chiral symmetries of QCD [1], a means is now available for addr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c707ae94f6535c508aedef0f95e32fb7
https://doi.org/10.1103/physrevlett.80.1597

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General properties of the pion production reaction in nuclear matter

Autor: Rinaldo Rui, E. Fragiacomo, S. Piano, L. Felawka, R. Meier, K. Raywood, N. Grion, G. R. Smith, E. L. Mathie, Paolo Camerini, J. Clark, D.F. Ottewell, M. E. Sevior, E. F. Gibson, G. J. Hofman, R. Tacik, G. R. Moloney

The pion production reaction $\pi^+ \to \pi^+\pi^{\pm}$ on $^{45}Sc$ was studied at incident pion energies of $T_{\pi^{+}}$ = 240, 260, 280, 300, and 320 MeV. The experiment was performed using the $M11$ pion-channel at TRIUMF, and multiparticle even

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6af3f28bc0e1eb66e7c509f4d7a885b
https://hdl.handle.net/11368/1700231

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Search for deeply bound pionic states in208Pb via radiative atomic capture of negative pions

Autor: K.S. Sim, S. Yen, D.F. Ottewell, A. Olin, J.B. Lange, A. Trudel, S.J. Lee, E. Friedman, K. Raywood, A. Altman, M. Pavan, M. E. Sevior, G. A. C. Jones, D. A. Hutcheon

Publikováno v: Physical Review C. 55:2492-2500

A search for narrow, deeply bound pionic atom states via atomic radiative capture of negative pions in a target of {sup 208}Pb was carried out for pion kinetic energies of 20 and 25 MeV. Although no clear signature of any such gamma ray emission coul

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::24f8bca76421ebe295992fd4233cab22
https://doi.org/10.1103/physrevc.55.2492

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