|
1.
|
Search for polarized antiproton production
/ Grzonka, D (Julich, Forschungszentrum) ; Alfs, D (Julich, Forschungszentrum ; Jagiellonian U.) ; Asaturyan, A (NAS Armenia, Yerevan) ; Carmignotto, M (Catholic U.) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Eyrich, W (Erlangen - Nuremberg U.) ; Głowacz, B (Jagiellonian U.) ; Hauenstein, F (Old Dominion U.) ; Horn, T (Catholic U.) ; Kilian, K (Julich, Forschungszentrum) et al.
The production of antiprotons is studied in view of possible polarization effects as basis for a polarized antiproton beam. If antiprotons are produced with some polarization, a quite simple procedure for the generation of a polarized antiproton beam could be worked out. [...]
2019 - 8 p.
- Published in : Hyperfine Interact. 240 (2019) 22
In : 13th International Conference on Low Energy Antiproton Physics, Paris, France, 12 - 16 Mar 2018, pp.22
|
|
|
2.
|
Drift chamber calibration and particle identification in the P-349 experiment
/ Alfs, D (Julich, Forschungszentrum ; Jagiellonian U.) ; Asaturyan, A (NAS Armenia, Yerevan) ; Carmignotto, M (Catholic U.) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Eyrich, W (Erlangen - Nuremberg U.) ; Głowacz, B (Jagiellonian U.) ; Grzonka, D (Julich, Forschungszentrum) ; Hauenstein, F (Old Dominion U.) ; Horn, T (Catholic U.) ; Kilian, K (Julich, Forschungszentrum) et al.
The goal of the P-349 experiment is to test whether 3.5 GeV/c antiprotons produced in high-energy proton-proton collisions are polarized in view of the preparation of a polarized antiproton beam. In this article, we present the details of the ongoing analysis focused on the drift chambers calibration and particle identification with DIRC..
2019 - 4 p.
- Published in : EPJ Web Conf. 199 (2019) 05017
Fulltext: PDF;
In : 15th International Workshop on Meson Physics, Kraków, Poland, 7 - 12 Jun 2018, pp.05017
|
|
|
3.
|
Polarization analysis of $\bar{\rho}$ produced in pA collisions
/ Grzonka, D (Julich, Forschungszentrum) ; Alfs, D (Julich, Forschungszentrum ; Jagiellonian U.) ; Asaturyan, A (NAS Armenia, Yerevan) ; Carmignotto, M (Catholic U.) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Eyrich, W (Erlangen - Nuremberg U.) ; Głowacz, B (Jagiellonian U.) ; Hauenstein, F (Old Dominion U.) ; Horn, T (Catholic U.) ; Kilian, K (Julich, Forschungszentrum) et al.
A quite simple procedure for the generation of a polarized antiproton beam could be worked out if antiprotons are produced with some polarization. In order to investigate this possibility measurements of the polarization of produced antiprotons have been started at a CERN/PS test beam. [...]
2019 - 4 p.
- Published in : EPJ Web Conf. 199 (2019) 05013
Fulltext: PDF;
In : 15th International Workshop on Meson Physics, Kraków, Poland, 7 - 12 Jun 2018, pp.05013
|
|
|
4.
|
Drift Chamber Calibration and Track Reconstruction in the P349 Antiproton Polarization Experiment
/ Alfs, D (Jagiellonian U.) ; Głowacz, B (Jagiellonian U.) ; Moskal, P (Jagiellonian U.) ; Zieliński, M (Jagiellonian U.) ; Grzonka, D (Julich, Forschungszentrum) ; Hauenstein, F (Julich, Forschungszentrum) ; Kilian, K (Julich, Forschungszentrum) ; Lersch, D (Julich, Forschungszentrum) ; Ritman, J (Julich, Forschungszentrum) ; Sefzick, T (Julich, Forschungszentrum) et al.
The goal of the P349 experiment is to test whether the antiproton production process can be itself a source of antiproton polarization. In this article, we present the motivation and details of the performed measurement. [...]
2017 - 6 p.
- Published in : Acta Phys. Pol. B 48 (2017) 1983-1988
Fulltext: PDF;
In : 2nd Jagiellonian Symposium of Fundamental and Applied Subatomic Physics, Krakow, June 4-9, 2017, pp.1983-1988
|
|
|
5.
|
Status of the analysis for the search of polarization in the antiproton production process
/ Alfs, D (Jagiellonian U.) ; Asaturyan, A (Yerevan Phys. Inst.) ; Carmignotto, M (Catholic U.) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Eyrich, W (Erlangen - Nuremberg U.) ; Głowacz, B (Jagiellonian U.) ; Grzonka, D (Julich, Forschungszentrum) ; Hauenstein, F (Julich, Forschungszentrum) ; Horn, T (Catholic U.) ; Kilian, K (Julich, Forschungszentrum) et al.
The P-349 experiment aims to test whether for antiprotons the production process itself can be a source of polarization in view of the preparation of a polarized antiproton beam. In this article we present the details of performed measurements and report on the status of the ongoing analysis..
2016 - 3 p.
- Published in : EPJ Web Conf. 130 (2016) 07002
Fulltext: PDF;
In : 14th International Workshop on Meson Production, Properties and Interaction, Krakow, Poland, 2 - 7 Jun 2016, pp.07002
|
|
|
6.
|
First measurement of the Sivers asymmetry for gluons from SIDIS data
/ COMPASS Collaboration
The Sivers function describes the correlation between the transverse spin of a nucleon and the transverse motion of its partons. It was extracted from measurements of the azimuthal asymmetry of hadrons produced in semi-inclusive deep inelastic scattering of leptons off transversely polarised nucleon targets, and it turned out to be non-zero for quarks. [...]
arXiv:1701.02453; CERN-EP-2017-003.-
Geneva : CERN, 2017-09-10 - 11 p.
- Published in : Phys. Lett. B 772 (2017) 854-864
Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: CERN-EP-2017-003 - PDF; arXiv:1701.02453 - PDF;
|
|
|
7.
|
|
|
8.
|
Sivers asymmetry extracted in SIDIS at the hard scales of the Drell–Yan process at COMPASS
/ COMPASS Collaboration
Proton transverse-spin azimuthal asymmetries are extracted from the COMPASS 2010 semi-inclusive hadron measurements in deep inelastic muon-nucleon scattering in those four regions of the photon virtuality $Q^2$, which correspond to the four regions of the di-muon mass $\sqrt{Q^2}$ used in the ongoing analysis of the COMPASS Drell-Yan measurements. This allows for a future direct comparison of the nucleon transverse-momentum-dependent parton distribution functions extracted from these two alternative measurements. [...]
arXiv:1609.07374; CERN-EP-2016-250; CERN-EP-2016--250.-
Geneva : CERN, 2017-07-10 - 8 p.
- Published in : Phys. Lett. B 770 (2017) 138-145
Article from SCOAP3: PDF; Fulltext: PDF; External link: Preprint
|
|
|
9.
|
Azimuthal asymmetries of charged hadrons produced in high-energy muon scattering off longitudinally polarised deuterons
/ Adolph, C. (U. Erlangen-Nuremberg (main)) ; Aghasyan, M (INFN, Trieste) ; Akhunzyanov, R (Dubna, JINR) ; Alexeev, M G (Turin U.) ; Alexeev, G D (Dubna, JINR) ; Amoroso, A (INFN, Turin ; Turin U.) ; Andrieux, V (IRFU, Saclay) ; Anfimov, N V (Dubna, JINR) ; Anosov, V (Dubna, JINR) ; Augsten, K (CTU, Prague ; Dubna, JINR) et al.
Single hadron azimuthal asymmetries of positive and negative hadrons produced in muon semi-inclusive deep inelastic scattering off longitudinally polarised deuterons are determined using the 2006 COMPASS data and also combined all deuteron COMPASS data. For each hadron charge, the dependence of the azimuthal asymmetry on the hadron azimuthal angle $\phi$ is obtained by means of a five-parameter fitting function that besides a $\phi$-independent term includes four modulations predicted by theory: $\sin\phi$, $\sin 2 \phi$, $\sin 3\phi$ and $\cos\phi$. [...]
arXiv:1609.06062; CERN-EP-2016-245.-
Geneva : CERN, 2018-11-19 - 15 p.
- Published in : Eur. Phys. J. C
Article from SCOAP3: PDF; Fulltext: PDF; External link: Preprint
|
|
|
10.
|
|