| 000 | 03679nlm1a2200505 4500 | ||
|---|---|---|---|
| 001 | 665751 | ||
| 005 | 20231030042013.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\36955 | ||
| 035 | _aRU\TPU\network\36156 | ||
| 090 | _a665751 | ||
| 100 | _a20211112a2020 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _aarnn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aMeasurement of the cross section for hard exclusive pi0 muoproduction on the proton _fM. Alekseev, G. Alekseev, A. Amoroso [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References.: 31 tit.] | ||
| 330 | _aWe report on a measurement of hard exclusive π0 muoproduction on the proton by COMPASS using 160 GeV/c polarised [mu]+ and [mu]- beams of the CERN SPS impinging on a liquid hydrogen target. From the average of the measured [mu]+ and [mu]- cross sections, the virtual-photon proton cross section is determined as a function of the squared four-momentum transfer between initial and final proton in the range 0.08(GeV/c)2<t<0.64(GeV/c)2. | ||
| 330 | _aFitting the azimuthal dependence reveals a combined contribution by transversely and longitudinally polarised photons of (8.2±0.9stat-1.2+1.2 sys)nb/(GeV/c)2, as well as transverse-transverse and longitudinal-transverse interference contributions of (-6.1±1.3stat-0.7+0.7 sys)nb/(GeV/c)2 and (1.5±0.5stat-0.2+0.3 sys)nb/(GeV/c)2, respectively. Our results provide important input for modelling Generalised Parton Distributions. In the context of the phenomenological Goloskokov-Kroll model, the statistically significant transverse-transverse interference contribution constitutes clear experimental evidence for the chiral-odd GPD E T. | ||
| 461 | _tPhysics Letters B | ||
| 463 |
_tVol. 805 _v[135454, 8 p.] _d2020 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aquantum chromodynamics | |
| 610 | 1 | _amuoproduction | |
| 610 | 1 | _ahard exclusive meson production | |
| 610 | 1 | _ageneralised parton distributions | |
| 610 | 1 | _aCOMPASS | |
| 610 | 1 | _aквантовая хромодинамика | |
| 610 | 1 | _aмезоны | |
| 610 | 1 | _aпротоны | |
| 701 | 1 |
_aAlekseev _bM. _gMaksim |
|
| 701 | 1 |
_aAlekseev _bG. _gGennady |
|
| 701 | 1 |
_aAmoroso _bA. |
|
| 701 | 1 |
_aAndrieux _bV. |
|
| 701 | 1 |
_aChumakov _bA. G. _cphysicist _claboratory assistant-researcher of Tomsk Polytechnic University _f1992- _gAleksandr Grigorjevich _2stltpush _3(RuTPU)RU\TPU\pers\41079 |
|
| 701 | 1 |
_aDusaev _bR. R. _cspecialist in the field of nuclear physics _cEngineer of Tomsk Polytechnic University _f1988- _gRenat Ramilyevich _2stltpush _3(RuTPU)RU\TPU\pers\30972 |
|
| 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 |
| 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 _c20211112 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1016/j.physletb.2020.135454 | |
| 942 | _cCF | ||