Measurement of single-spin asymmetry for charged pions in the SPASCHARM experiment at U70 accelerator
| العنوان: | Measurement of single-spin asymmetry for charged pions in the SPASCHARM experiment at U70 accelerator |
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| المؤلفون: | V. V. Moiseev, P. A. Semenov, V. L. Rykov, A. O. Oreshkov, V. V. Mochalov, V. V. Abramov, D. A. Morozov, M. B. Nurusheva, N. K. Kalugin, A. N. Vasiliev, K. D. Novikov |
| المصدر: | Journal of Physics: Conference Series. 1690:012164 |
| بيانات النشر: | IOP Publishing, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Physics, Nuclear physics, History, Pion, media_common.quotation_subject, Asymmetry, Computer Science Applications, Education, media_common, Spin-½ |
| الوصف: | The SPASCHARM experiment at U70 aims an exploration of a fundamental problem in modern particle physics, the role of spin in strong interactions. At present, the first physics data have been accumulated at a negative 28 GeV beam, interacting with a frozen polarized proton target. The SPASCHARM wide-aperture spectrometer can detect both charged and neutral particles in the large solid angle with 2π azimuthal coverage in the fragmentation region of beam-particles. It covers the kinematic region of non-perturbative quantum chromodynamics (QCD), where the theoretical predictions are difficult and unreliable due to the full strength quark confinement at low and medium momentum transfers. In this report, the current status of the experiment is presented. The algorithm for reconstructing charged tracks is discussed along with its results on real data and the comparison with the Monte Carlo (MC) simulations. Based on a real track reconstruction, the statistical errors for the measurements of single-spin asymmetries in inclusive charged pion production are estimated. The data analysis is in progress. |
| تدمد: | 1742-6596 1742-6588 |
| DOI: | 10.1088/1742-6596/1690/1/012164 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::47e7e727d332b85b8b4057c3a556a698 https://doi.org/10.1088/1742-6596/1690/1/012164 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........47e7e727d332b85b8b4057c3a556a698 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17426596 17426588 |
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| DOI: | 10.1088/1742-6596/1690/1/012164 |