Total Cross Sections and Angular Distributions for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mo>+</mml:mo><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:mrow><mml:msup><mml:mrow><mml:mi>η</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mo>+</mml:mo><mml:mi>n</mml:mi></mml:math>from Threshold to 1151 MeV

Bulos, F.; Lanou, R.E.; Pifer, A. E.; Shapiro, A.; Widgoff, M.; Panvini, R. S.; Brenner, A. E.; Bordner, C. A.; Law, M. E.; Ronat, E.; Strauch, K.; Szymański, J.; Bastien, Pierre; Brabson, B.; Eisenberg, Y.; Feld, Bernard T.; Fischer, V. K.; Pless, I. A.; Rosenson, L.; Yamamoto, R. K.; Calvelli, G.; Guerriero, L.; Salandin, G. A.; Tomasin, A.; Ventura, L.; Voci, C.; Waldner, F.

doi:10.1103/physrevlett.13.486

Cited by 85 publications

(20 citation statements)

References 5 publications

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“…In all cases the s-d interference drops out in the evaluation of |f | 2 . The agreement with the selected older data [127,128,130,133] is reasonable. Also shown in Fig.…”

Section: η Production In πN Collisionssupporting

confidence: 61%

“…In contrast to the photoproduction case, most of the measurements of the near-threshold π − p → ηn differential cross section were carried out many years ago and some inconsistencies are apparent in the data base [127,128,129,130,131,132,133,134]. There are, however, two more recent experiments where the η meson was reliably identified through its 2γ or 6γ decay mode [135,136].…”

Section: η Production In πN Collisionsmentioning

confidence: 99%

“…(b) Average amplitude-squared of the π − p → ηn reaction showing the results of Ref. [135] (blue stars) and [136] (red crosses) as well as a selection of older data [127,128,130,133] (green circles). The solid (black) line represents the contribution from the N * (1535) isobar with parameters taken from Ref.…”

Section: η Production In πN Collisionsmentioning

confidence: 99%

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Production of η and η′ mesons on nucleons and nuclei

Krusche¹,

Wilkin²

2015

Progress in Particle and Nuclear Physics

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The production of η and η mesons in photon-and hadron-induced reactions on free and quasifree nucleons and on nuclei is reviewed. The extensive database on γN → ηN , for both proton and neutron targets, is described in detail and its implications for the search for N resonances much heavier than the dominant S 11 (1535) discussed. Though less is currently known about the production of the η or of ηπ pairs, these also offer tantalizing prospects in the search for the missing isobars. The more limited data available on pion-induced production are still necessary ingredients in the partial wave analysis discussed.The production of the η-meson in pp and pn collisions shows once again the strong influence of the S 11 (1535) isobar, which is in contrast to the relatively weak behaviour seen near threshold for η production. This difference is reflected in the important final state interaction effects of the η in nuclei that may even lead to this meson being "bound" in some systems. The evidence for this is reviewed for both γA and pA collisions. The inclusive photoproduction of η, η , and ηπ pairs from nuclei provides further information regarding the production mechanism and the interaction of the η and η with nuclei and the ηπ pairs may even allow access to low mass ηA systems that are forbidden in direct single-meson photoproduction.

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“…In all cases the s-d interference drops out in the evaluation of |f | 2 . The agreement with the selected older data [127,128,130,133] is reasonable. Also shown in Fig.…”

Section: η Production In πN Collisionssupporting

confidence: 61%

Section: η Production In πN Collisionsmentioning

confidence: 99%

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Production of η and η′ mesons on nucleons and nuclei

Krusche¹,

Wilkin²

2015

Progress in Particle and Nuclear Physics

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“…to the results of two spark-chamber experiments 10,11 which studied the reaction T +p-•n+rf* i 77, within our energy range. These experimental points are also shown on Fig.…”

Section: Crossmentioning

confidence: 97%

“…10,11 (ii) The values of A1-A5 in the range 1581-1643 MeV, especially the large value of A 5 , are characteristic of the interference of Z) 5 and F 5 waves, together with the interference of these with the Si wave giving contribution to A 2 and A 3. It is thus reasonable to conclude that the decays of the D n N*(1680) and Fn N*(1688) into vP are being observed.…”

Section: Crossmentioning

confidence: 98%

Inelasticπ+nInteractions in the Center-of-Mass Energy Range 1.40-1.65 GeV

Litchfield

1969

Phys. Rev.

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The reactions ir + +n -> p-\-ir + -i nr and 7r + +w -> p+y have been studied as a function of the w + n center-of-mass energy in the range 1.40-1.65 GeV, using T + interactions in deuterium and the impulse approximation. Within specified limits, the data are shown to be consistent with this approximation. The relative cross sections for ir + -\-n -» p+ir + -\-7r~ have been obtained at 13 points in the energy range, with a standard deviation of 4% at the center, rising to 10% at the extreme energies. There is a clear enhancement in the region of the iV*(1470) and iV*(1518), and the cross section rises steeply at the higher energies. The rapid rise and subsequent decay of the ^-production cross section is confirmed. From the 17-production angular distributions, evidence for the decay of the N* (1680) and N* (1688) into rip is found, together with an indication that the iV*(1470) may decay in this mode.T HIS paper presents the results of a study of the reactions 7T++W -» ^+7T + +7T~ , T++n->p + 7]°in the ir + n center-of-mass energy range 1.40-1.65 GeV. The data were obtained from a large exposure (approximately 10 6 pictures) of 800-870 MeV/c TT+ mesons in the Saclay 180-liter Deuterium Bubble Chamber at NIMROD which was carried out by the Rutherford Laboratory and the Saclay Bubble Chamber groups. The experiment was originally designed to investigate the decay properties of the rf, especially to detect a possible C-violating asymmetry in the decay pions. The results of these investigations have been published elsewhere. 1 ' 2The cross section for reactions (1) and (2) together with the two-body angular distributions for reaction (2) are presented here as a function of the center-ofmass energy of the w + n system.

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A Survey of π-N Scattering, and of the T=½ Amplitudes

Moyer

1968

Symposia on Theoretical Physics and Mathematics

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Total Cross Sections and Angular Distributions forπ−+p→η0+nfrom Threshold to 1151 MeV

Cited by 85 publications

References 5 publications

Production of η and η′ mesons on nucleons and nuclei

Production of η and η′ mesons on nucleons and nuclei

Inelasticπ+nInteractions in the Center-of-Mass Energy Range 1.40-1.65 GeV

A Survey of π-N Scattering, and of the T=½ Amplitudes

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