| 000 | 02573nlm1a2200373 4500 | ||
|---|---|---|---|
| 001 | 664601 | ||
| 005 | 20231030041935.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\35785 | ||
| 090 | _a664601 | ||
| 100 | _a20210429a2020 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aHelicity-Dependent Cross Sections for the Photoproduction of π0 Pairs from Nucleons _fM. Dieterle, L. Witthauer, A. I. Fiks (Fix) [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 47 tit.] | ||
| 330 | _aThe double-polarization observable E and helicity-dependent cross sections σ1/2, σ3/2 have been measured for the photoproduction of π0 pairs off quasifree protons and neutrons at the Mainz MAMI accelerator with the Crystal Ball/TAPS setup. A circularly polarized photon beam was produced by bremsstrahlung from longitudinally polarized electrons and impinged on a longitudinally polarized deuterated butanol target. The reaction products were detected with an almost 4π covering calorimeter. The results reveal for the first time the helicity- and isospin-dependent structure of the γN→Nπ0π0 reaction. They are compared to predictions from reaction models in view of nucleon resonance contributions and also to a refit of one model that predicted results for the proton and for the neutron target. The comparison of the prediction and the refit demonstrates the large impact of the new data. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tPhysical Review Letters | ||
| 463 |
_tVol. 125, iss. 6 _v[062001 , 6 p.] _d2020 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 701 | 0 |
_aDieterle _bM. _gManuel |
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| 701 | 1 |
_aWitthauer _bL. _gLilian |
|
| 701 | 1 |
_aFiks (Fix) _bA. I. _cmathematician _cProfessor of Tomsk Polytechnic University, doctor of physico-mathematical Sciences _f1968- _gAlexander Ivanovich _2stltpush _3(RuTPU)RU\TPU\pers\33830 |
|
| 701 | 1 |
_aAbt _bS. |
|
| 701 | 1 |
_aAchenbach _bP. _gPatrick |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа физики высокоэнергетических процессов _c(2017- ) _h8118 _2stltpush _3(RuTPU)RU\TPU\col\23551 |
| 801 | 2 |
_aRU _b63413507 _c20210429 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1103/PhysRevLett.125.062001 | |
| 942 | _cCF | ||