| 000 | 02808nlm1a2200457 4500 | ||
|---|---|---|---|
| 001 | 666184 | ||
| 005 | 20231030042028.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\37388 | ||
| 035 | _aRU\TPU\network\36405 | ||
| 090 | _a666184 | ||
| 100 | _a20211209a2021 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aMeasurement of beam asymmetry for [pi]-[delta]++ photoproduction on the proton at E[gamma]=8.5 GeV _fSh. Adhikari, C. S. Akondi, A. Ali [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 38 tit.] | ||
| 330 | _aWe report a measurement of the [pi]- photoproduction beam asymmetry for the reaction [gamma] p -> [pi]-[delta]++ using data from the GLUEX experiment in the photon beam energy range 8.2-8.8 GeV. The asymmetry [sigma] is measured as a function of four-momentum transfer t to the [delta]++ and compared to phenomenological models. We find that varies as a function of t: negative at smaller values and positive at higher values of t. The reaction can be described theoretically by t-channel particle exchange requiring pseudoscalar, vector, and tensor intermediaries. In particular, this reaction requires charge exchange, allowing us to probe pion exchange and the significance of higher-order corrections to one-pion exchange at low momentum transfer. Constraining production mechanisms of conventional mesons may aid in the search for and study of unconventional mesons. This is the first measurement of the process at this energy. | ||
| 461 | _tPhysical Review C | ||
| 463 |
_tVol. 103, iss. 2 _v[L022201, 7 р.] _d2021 |
||
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aасимметрия | |
| 610 | 1 | _aпучки | |
| 610 | 1 | _aфотоны | |
| 610 | 1 | _aпередача импульсов | |
| 610 | 1 | _aфоторождение | |
| 610 | 1 | _aпионы | |
| 610 | 1 | _aмезоны | |
| 701 | 1 |
_aAdhikari _bSh. _gShankar |
|
| 701 | 1 |
_aAkondi _bC. S. |
|
| 701 | 1 |
_aAli _bA. |
|
| 701 | 1 |
_aAmaryan _bM. |
|
| 701 | 1 |
_aLyubovitskiy (Lyubovitskij) _bV. E. _cphysicist _cProfessor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Professor of the University of Tubingen (Germany) _f1963- _gValery Efimovich _2stltpush _3(RuTPU)RU\TPU\pers\33385 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bШкола базовой инженерной подготовки _bОтделение математики и информатики _h8031 _2stltpush _3(RuTPU)RU\TPU\col\23555 |
| 801 | 2 |
_aRU _b63413507 _c20211209 _gRCR |
|
| 856 | 4 | 0 | _uhttps://doi.org/10.1103/PhysRevC.103.L022201 |
| 942 | _cCF | ||