| 000 | 04071nlm1a2200805 4500 | ||
|---|---|---|---|
| 001 | 643328 | ||
| 005 | 20231030040535.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\8320 | ||
| 035 | _aRU\TPU\network\5049 | ||
| 090 | _a643328 | ||
| 100 | _a20150907a2015 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aThe isospin structure of photoproduction of πη pairs from the nucleon in the threshold region _fA. Käser [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References.: p. 250 (41 tit.)] | ||
| 330 | _aPhotoproduction of πη -pairs from nucleons has been investigated from threshold up to incident photon energies of 1.4 GeV. The quasi-free reactions γp→pπ0η,γn→nπ0η, γp→nπ+η, and γn→pπ−η were for the first time measured from nucleons bound in the deuteron. The corresponding reactions from a free-proton target were also studied to investigate final-state interaction effects (for neutral pions the free-proton results could be compared to previous measurements; the γp→nπ+η reaction was measured for the first time). For the π0η final state coherent production via theγd→dπ0η reaction was also investigated. The experiments were performed at the tagged photon beam of the Mainz MAMI accelerator using an almost 4π coverage electromagnetic calorimeter composed of the Crystal Ball and TAPS detectors. The total cross sections for the four different final states obey the relationσ(pπ0η)≈σ(nπ0η)≈2σ(pπ−η)≈2σ(nπ+η) as expected for a dominant contribution from a Δ⋆→ηΔ(1232)→πηN reaction chain, which is also supported by the shapes of the invariant-mass distributions of nucleon-meson and π-η pairs. The experimental results are compared to the predictions from an isobar reaction model. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 |
_tPhysics Letters B _oParticle Physics, Nuclear Physics and Cosmology _d1962- |
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| 463 |
_tVol. 748 _v[P. 244–250] _d2015 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 701 | 1 |
_aKäser _bA. |
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| 701 | 1 |
_aAhrens _bJ. |
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| 701 | 1 |
_aAnnand _bJ. R. M. |
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| 701 | 1 |
_aArends _bH. J. |
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| 701 | 1 |
_aBantawa _bK. |
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| 701 | 1 |
_aBartolome _bP. A. |
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| 701 | 1 |
_aBeck _bR. |
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| 701 | 1 |
_aBekrenev _bV. |
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| 701 | 1 |
_aBerghäuser _bH. |
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| 701 | 1 |
_aBraghieri _bA. |
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| 701 | 1 |
_aBranford _bD. |
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| 701 | 1 |
_aBriscoe _bW. J. |
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| 701 | 1 |
_aBrudvik _bJ. |
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| 701 | 1 |
_aCherepnya _bS. |
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| 701 | 1 |
_aCostanza _bS. |
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| 701 | 1 |
_aDemissie _bB. |
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| 701 | 1 |
_aDieterle _bM. |
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| 701 | 1 |
_aDownie _bE. J. |
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| 701 | 1 |
_aDrexler _bP. |
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| 701 | 1 |
_aFil'kov _bL. V. |
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| 701 | 1 |
_aFiks _bA. I. _cmathematician _cProfessor of Tomsk Polytechnic University, doctor of physico-mathematical Sciences _f1968- _gAlexander Ivanovich _2stltpush _3(RuTPU)RU\TPU\pers\33830 |
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| 701 | 1 |
_aGlazier _bD. I. |
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| 701 | 1 |
_aHamilton _bD. |
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| 701 | 1 |
_aHeid _bE. |
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| 701 | 1 |
_aHornidge _bD. |
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| 701 | 1 |
_aHowdle _bD. |
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| 701 | 1 |
_aHuber _bG. M. |
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| 701 | 1 |
_aJahn _bO. |
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| 701 | 1 |
_aJaegle _bI. |
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| 701 | 1 |
_aJude _bT. C. |
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| 701 | 1 |
_aKashevarov _bV. L. |
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| 701 | 1 |
_aKeshelashvili _bI. |
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| 701 | 1 |
_aKondratiev _bR. |
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| 701 | 1 |
_aKorolija _bM. |
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| 701 | 1 |
_aKruglov _bS. P. |
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| 701 | 1 |
_aKrusche _bB. |
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| 701 | 1 |
_aLisin _bV. |
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| 701 | 1 |
_aLivingston _bK. |
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| 701 | 1 |
_aMacGregor _bI. J. D. |
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| 701 | 1 |
_aMaghrbi _bY. |
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| 701 | 1 |
_aMancell _bJ. |
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| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bФизико-технический институт (ФТИ) _bКафедра высшей математики и математической физики (ВММФ) _h139 _2stltpush _3(RuTPU)RU\TPU\col\18727 |
| 801 | 2 |
_aRU _b63413507 _c20150907 _gRCR |
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| 856 | 4 | _uhttp://www.sciencedirect.com/science/article/pii/S0370269315005171 | |
| 942 | _cCF | ||