Search

Your search keyword '"Y., Kisselev"' showing total 7 results
Start Over Author "Y., Kisselev" Search Limiters Full Text
7 results on '"Y., Kisselev"'

1. Polarized target at COMPASS

Author

Tatsuro Matsuda, M. Pešek, Y. Miyachi, Miroslav Finger, K. Kondo, Shigeru Ishimoto, Norihiro Doshita, Naoaki Horikawa, G. Reicherz, Christophe Pires, W. Meyer, G. Nukazuka, Takahiro Iwata, Y. Kisselev, Hajime Suzuki, and J.H. Koivuniemi

Subjects
Physics, Muon, Proton, Nuclear Theory, Parton, Radiation, Accelerators and Storage Rings, Nuclear physics, Distribution function, Compass, Radiation damage, High Energy Physics::Experiment, Nuclear Experiment, Beam (structure)
Abstract

The transversely polarized solid proton target was used in 2015 and 2018 for the polarized Drell- Yan experiment at the first in the world with a 10$^8$ /s intensity of 190 GeV pion beam at COM- PASS. Because of the radiation damage, the deterioration of the proton relaxation time of NH$_3$ was observed over more than 6 months data taking period. The radiation also affected the cryogenics control system in 2015. The radiation shield was improved and any incidents on the ra- diation was not observed in 2018. The transversely polarized deuteron target will be applied in 2021 with a muon beam of 160 GeV for Transversity and Sivers parton distribution functions measurements. A cooling test of the polarized target system will be performed in 2020.

Published
2020

2. Study of Σ(1385) and Ξ(1321) hyperon and antihyperon production in deep inelastic muon scattering

Author

C. Adolph, M. G. Alekseev, V. Y. Alexakhin, Y. Alexandrov, G. D. Alexeev, A. Amoroso, A. Austregesilo, B. Badełek, F. Balestra, J. Barth, G. Baum, Y. Bedfer, A. Berlin, J. Bernhard, R. Bertini, K. Bicker, J. Bieling, R. Birsa, J. Bisplinghoff, P. Bordalo, F. Bradamante, C. Braun, A. Bravar, A. Bressan, M. Büchele, E. Burtin, L. Capozza, M. Chiosso, S. U. Chung, A. Cicuttin, M. L. Crespo, S. Dalla Torre, S. S. Dasgupta, S. Dasgupta, O. Y. Denisov, S. V. Donskov, N. Doshita, V. Duic, W. Dünnweber, M. Dziewiecki, A. Efremov, C. Elia, P. D. Eversheim, W. Eyrich, M. Faessler, A. Ferrero, A. Filin, M. Finger, H. Fischer, C. Franco, N. du Fresne von Hohenesche, J. M. Friedrich, V. Frolov, R. Garfagnini, F. Gautheron, O. P. Gavrichtchouk, S. Gerassimov, R. Geyer, M. Giorgi, I. Gnesi, B. Gobbo, S. Goertz, S. Grabmüller, A. Grasso, B. Grube, R. Gushterski, A. Guskov, T. Guthörl, F. Haas, D. von Harrach, F. H. Heinsius, F. Herrmann, C. Heß, F. Hinterberger, C. Höppner, N. Horikawa, N. d’Hose, S. Huber, S. Ishimoto, Y. Ivanshin, T. Iwata, R. Jahn, V. Jary, P. Jasinski, R. Joosten, E. Kabuß, D. Kang, B. Ketzer, G. V. Khaustov, Y. A. Khokhlov, Y. Kisselev, F. Klein, K. Klimaszewski, J. H. Koivuniemi, V. N. Kolosov, K. Kondo, K. Königsmann, I. Konorov, V. F. Konstantinov, A. M. Kotzinian, O. Kouznetsov, M. Krämer, Z. V. Kroumchtein, N. Kuchinski, F. Kunne, K. Kurek, R. P. Kurjata, A. A. Lednev, A. Lehmann, S. Levorato, J. Lichtenstadt, A. Maggiora, A. Magnon, N. Makke, G. K. Mallot, A. Mann, C. Marchand, A. Martin, J. Marzec, H. Matsuda, T. Matsuda, G. Meshcheryakov, W. Meyer, T. Michigami, Y. V. Mikhailov, Y. Miyachi, A. Morreale, A. Nagaytsev, T. Nagel, F. Nerling, S. Neubert, D. Neyret, V. I. Nikolaenko, J. Novy, W.-D. Nowak, A. S. Nunes, A. G. Olshevsky, M. Ostrick, R. Panknin, D. Panzieri, B. Parsamyan, S. Paul, G. Piragino, S. Platchkov, J. Pochodzalla, J. Polak, V. A. Polyakov, J. Pretz, M. Quaresma, C. Quintans, S. Ramos, G. Reicherz, E. Rocco, V. Rodionov, E. Rondio, N. S. Rossiyskaya, D. I. Ryabchikov, V. D. Samoylenko, A. Sandacz, M. G. Sapozhnikov, S. Sarkar, I. A. Savin, G. Sbrizzai, P. Schiavon, C. Schill, T. Schlüter, A. Schmidt, K. Schmidt, L. Schmitt, H. Schmïden, K. Schönning, S. Schopferer, M. Schott, O. Y. Shevchenko, L. Silva, L. Sinha, S. Sirtl, S. Sosio, F. Sozzi, A. Srnka, L. Steiger, M. Stolarski, M. Sulc, R. Sulej, H. Suzuki, P. Sznajder, S. Takekawa, J. Ter Wolbeek, S. Tessaro, F. Tessarotto, F. Thibaud, S. Uhl, I. Uman, M. Vandenbroucke, M. Virius, L. Wang, T. Weisrock, M. Wilfert, R. Windmolders, W. Wiślicki, H. Wollny, K. Zaremba, M. Zavertyaev, E. Zemlyanichkina, N. Zhuravlev, M. Ziembicki, C., Adolph, M. G., Alekseev, V. Y., Alexakhin, Y., Alexandrov, G. D., Alexeev, A., Amoroso, A., Austregesilo, B., Badełek, F., Balestra, J., Barth, G., Baum, Y., Bedfer, A., Berlin, J., Bernhard, R., Bertini, K., Bicker, J., Bieling, Birsa, Renato, J., Bisplinghoff, P., Bordalo, Bradamante, Franco, C., Braun, A., Bravar, Bressan, Andrea, M., Büchele, E., Burtin, L., Capozza, M., Chiosso, S. U., Chung, A., Cicuttin, M. L., Crespo, S., Dalla Torre, S. S., Dasgupta, S., Dasgupta, O. Y., Denisov, S. V., Donskov, N., Doshita, Duic, Venicio, W., Dünnweber, M., Dziewiecki, A., Efremov, Elia, Carmine, P. D., Eversheim, W., Eyrich, M., Faessler, A., Ferrero, A., Filin, M., Finger, H., Fischer, C., Franco, N., Fresne von hohenesche, J. M., Friedrich, V., Frolov, R., Garfagnini, F., Gautheron, O. P., Gavrichtchouk, S., Gerassimov, R., Geyer, M., Giorgi, I., Gnesi, B., Gobbo, S., Goertz, S., Grabmüller, A., Grasso, B., Grube, R., Gushterski, A., Guskov, T., Guthörl, F., Haa, D., Harrach, F. H., Heinsiu, F., Herrmann, C., Heß, F., Hinterberger, C., Höppner, N., Horikawa, N., D’Hose, S., Huber, S., Ishimoto, Y., Ivanshin, T., Iwata, R., Jahn, V., Jary, P., Jasinski, R., Joosten, E., Kabuß, D., Kang, B., Ketzer, G. V., Khaustov, Y. A., Khokhlov, Y., Kisselev, F., Klein, K., Klimaszewski, J. H., Koivuniemi, V. N., Kolosov, K., Kondo, K., Königsmann, I., Konorov, V. F., Konstantinov, A. M., Kotzinian, O., Kouznetsov, M., Krämer, Z. V., Kroumchtein, N., Kuchinski, F., Kunne, K., Kurek, R. P., Kurjata, A. A., Lednev, A., Lehmann, Levorato, Stefano, J., Lichtenstadt, A., Maggiora, A., Magnon, Makke, Nour, G. K., Mallot, A., Mann, C., Marchand, Martin, Anna, J., Marzec, H., Matsuda, T., Matsuda, G., Meshcheryakov, W., Meyer, T., Michigami, Y. V., Mikhailov, Y., Miyachi, A., Morreale, A., Nagaytsev, T., Nagel, F., Nerling, S., Neubert, D., Neyret, V. I., Nikolaenko, J., Novy, W. D., Nowak, A. S., Nune, A. G., Olshevsky, M., Ostrick, R., Panknin, D., Panzieri, B., Parsamyan, S., Paul, G., Piragino, S., Platchkov, J., Pochodzalla, J., Polak, V. A., Polyakov, J., Pretz, M., Quaresma, C., Quintan, S., Ramo, G., Reicherz, E., Rocco, V., Rodionov, E., Rondio, N. S., Rossiyskaya, D. I., Ryabchikov, V. D., Samoylenko, A., Sandacz, M. G., Sapozhnikov, S., Sarkar, I. A., Savin, Sbrizzai, Giulio, Schiavon, Paolo, C., Schill, T., Schlüter, A., Schmidt, K., Schmidt, L., Schmitt, H., Schmïden, K., Schönning, S., Schopferer, M., Schott, O. Y., Shevchenko, L., Silva, L., Sinha, S., Sirtl, S., Sosio, Sozzi, Federica, A., Srnka, L., Steiger, M., Stolarski, M., Sulc, R., Sulej, H., Suzuki, P., Sznajder, S., Takekawa, J., Wolbeek, Tessaro, Susanna, F., Tessarotto, F., Thibaud, S., Uhl, I., Uman, M., Vandenbroucke, M., Viriu, L., Wang, T., Weisrock, M., Wilfert, R., Windmolder, W., Wiślicki, H., Wollny, K., Zaremba, M., Zavertyaev, E., Zemlyanichkina, N., Zhuravlev, and M., Ziembicki

Subjects
dis, Particle physics, Strange quark, hyperon production, Physics and Astronomy (miscellaneous), di, Lambda, 01 natural sciences, COMPASS, High Energy Physics - Experiment, 0103 physical sciences, CHARGED CURRENT INTERACTIONS, (LAMBDA)OVER-BAR POLARIZATION, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Physics, Muon, 010308 nuclear & particles physics, Generator (category theory), High Energy Physics::Phenomenology, Hyperon, Sigma, Production (computer science), High Energy Physics::Experiment, Particle Physics - Experiment, Bar (unit)
Abstract

Large samples of \Lambda, \Sigma(1385) and \Xi(1321) hyperons produced in deep-inelastic muon scattering off a ^6LiD target were collected with the COMPASS experimental setup at CERN. The relative yields of \Sigma(1385)^+, \Sigma(1385)^-, \bar{\Sigma}(1385)^-, \bar{\Sigma}(1385)^+, \Xi(1321)^-, and \bar{\Xi}(1321)^+ hyperons decaying into \Lambda(\bar{\Lambda})\pi were measured. The heavy hyperon to \Lambda and heavy antihyperon to \bar{\Lambda} yield ratios were found to be in the range 3.8% to 5.6% with a relative uncertainty of about 10%. They were used to tune the parameters relevant for strange particle production of the LEPTO Monte Carlo generator., Comment: 13 pages, 4 figures and 3 tables, 1 Appendix with 3 figures. Version accepted by the Editor

Published
2013

3. Measurement of the deuteron polarization in a large target

Author

B. Frois, F. Sever, J. Vogt, G. Salvato, G. Gracia, S. Ishimoto, D. Sanders, Sergey M. Sergeev, T. Lindqvist, N. Horikawa, R. Seitz, H. Postma, I. Sabo, D.V. Peshekhonov, G. Bardin, M. Litmaath, Alessandro Bressan, M. Lowe, D. von Harrach, P. Shanahan, J. H. Moromisato, R. Kaiser, R. Voss, C. Whitten, J. Pyrlik, Tjeerd Ketel, M. Plo, F. Marie, L. Betev, G. Perez, R. van Dantzig, T. Çuhadar, S. Platchkov, A. Sandacz, O. Rondon, A. Brüll, G.I. Smirnov, S. Dalla Torre, G. van Middelkoop, M. Clocchiatti, Anna Zanetti, A. Witzmann, M. Ballintijn, J. Kyynäräinen, N. Hayashi, K. Mori, P. Björkholm, H. Stuhrmann, C. A. Heusch, C. Cavata, J.M. Clement, T. Pussieux, Roy Weinstein, L. Klostermann, B. Neganov, Gerhard K. Mallot, T. O. Niinikoski, J. Lichtenstadt, J. M. Rieubland, Kwong Lau, B. E. Bonner, J.A. Buchanan, M. Rodriguez, F. Perrot-Kunne, S. Bültmann, Patrick Hautle, D. Pose, Donal Day, N. de Botton, Victor Kukhtin, M. Lamanna, A. Rijllart, Bernardo Adeva, F. Tessarotto, N.I. Zamiatin, A. Dyring, P. Schüler, C. Garabatos, David Miller, L. Naumann, C. Dulya, P. Berglund, E. Rondio, Ricardo Piegaia, M. Giorgi, T. Layda, T. Gaussiran, Y. Kisselev, J. Cranshaw, T. Hasegawa, Shafqat Ahmad, I. A. Golutvin, M. Velasco, W. Thiel, Wojciech Wislicki, S. Eichblatt, J. Saborido, S. Okumi, S. Lopez-Ponte, W. Knop, E. Burtin, M. Boutemeur, D. Fasching, E. M. Kabuss, J. S. McCarthy, A. Kishi, A. Rosado, Lawrence S. Pinsky, A. de Lesquen, J. Oberski, A. Staude, R. Birsa, D. Krämer, Y. Tzamouranis, J. Mitchell, Aldo Penzo, A. Magnon, J. P. Chen, M. D. Corcoran, Günter Baum, V. Krivokhijine, A. Steinmetz, A. Karev, R.E. Segel, F. Lehar, E. von Goeler, Alan D. Martin, W. Grübler, J. Martino, V. W. Hughes, D. Crabb, Ulrich Landgraf, F. Feinstein, G.S. Mutchler, K. M. Teichert, Jay Roberts, I. G. Bird, M. Grosse Perdekamp, G. Igo, Takahiro Iwata, J. A. Garzon, Franco Bradamante, H. J. Kessler, Roland Windmolders, I.A. Savin, P. Schiavon, B. W. Mayes, L. Ropelewski, A. Arvidson, S. K. Dhawan, M. de Jong, Julien Faivre, J. Nassalski, A. Yañez, B. Badelek, C. Fernandez, Andrés Gómez, I. Kiryushin, B., Adeva, S., Ahmad, A., Arvidson, B., Badelek, M. K., Ballintijn, G., Bardin, G., Baum, P., Berglund, L., Betev, I. G., Bird, Birsa, Renato, P., Björkholm, B. E., Bonner, N., de Botton, M., Boutemeur, Bradamante, Franco, Bressan, Andrea, A., Brüll, J., Buchanan, S., Bültmann, E., Burtin, C., Cavata, J. P., Chen, J., Clement, M., Clocchiatti, M. D., Corcoran, D., Crabb, J., Cranshaw, T., Çuhadar, DALLA TORRE, Silvia, R., van Dantzig, D., Day, S., Dhawan, C., Dulya, A., Dyring, S., Eichblatt, J. C., Faivre, D., Fasching, F., Feinstein, C., Fernandez, B., Froi, C., Garabato, J. A., Garzon, T., Gaussiran, Giorgi, Marcello, E., von Goeler, I. A., Golutvin, A., Gomez, G., Gracia, M., Grosse Perdekamp, W., Grübler, D., von Harrach, T., Hasegawa, P., Hautle, N., Hayashi, C. A., Heusch, N., Horikawa, V. W., Hughe, G., Igo, S., Ishimoto, T., Iwata, M., de Jong, E. M., Kabu, R., Kaiser, A., Karev, H. J., Kessler, T. J., Ketel, I., Kiryushin, A., Kishi, Y., Kisselev, L., Klostermann, W., Knop, D., Krämer, V., Krivokhijine, V., Kukhtin, J., Kyynäräinen, M., Lamanna, U., Landgraf, K., Lau, T., Layda, F., Lehar, A., de Lesquen, J., Lichtenstadt, T., Lindqvist, M., Litmaath, S., Lopez Ponte, M., Lowe, A., Magnon, G. K., Mallot, F., Marie, Martin, Anna, J., Martino, B., Maye, J. S., Mccarthy, G., van Middelkoop, D., Miller, J., Mitchell, K., Mori, J., Moromisato, G. S., Mutchler, J., Nassalski, L., Naumann, B., Neganov, T. O., Niinikoski, J. E. J., Oberski, S., Okumi, A., Penzo, G., Perez, F., Perrot Kunne, D., Peshekhonov, R., Piegaia, L., Pinsky, S., Platchkov, M., Plo, D., Pose, H., Postma, T., Pussieux, J., Pyrlik, J. M., Rieubland, A., Rijllart, J. B., Robert, M., Rodriguez, E., Rondio, O., Rondon, L., Ropelewski, A., Rosado, I., Sabo, J., Saborido, G., Salvato, A., Sandacz, D., Sander, I., Savin, Schiavon, Paolo, P., Schüler, R., Segel, R., Seitz, S., Sergeev, F., Sever, P., Shanahan, G., Smirnov, A., Staude, A., Steinmetz, H., Stuhrmann, K. M., Teichert, F., Tessarotto, W., Thiel, Y., Tzamourani, M., Velasco, J., Vogt, R., Vo, R., Weinstein, C., Whitten, R., Windmolder, W., Wislicki, A., Witzmann, A., Yañez, N. I., Zamiatin, and Zanetti, ANNA MARIA

Subjects
Nuclear and High Energy Physics, deuteron: polarized target, deuteron target polarization measurement, PROTON, ND3, polarized target: deuteron, polarization: longitudinal, measurement: polarization, muon deuteron: nuclear reaction, Electromagnetic interference, Nuclear physics, Thermal, NMR system, Detectors and Experimental Techniques, Instrumentation, polarized beam: muon, Physics, Thermal equilibrium, Reproducibility, Muon, magnetic: resonance, CERN SPS, Polarization (waves), longitudinal: polarization, Magnetic field, Computational physics, Deuterium, polarization: measurement, resonance: magnetic, muon: polarized beam
Abstract

The 10-probe NMR system for measuring the polarization in the deuterated butanol target of the Spin Muon Collaboration is presented. It is calibrated by determining the integrated spectrum in thermal equilibrium at 1 K. Thermal stabilization and control of electromagnetic interference were effective in reducing drift and electronic noise, so that high quality thermal equilibrium signals were obtained. The calibration constant was determined with a reproducibility of 2%. Systematic effects of circuit drift and of the magnetic field shift have been studied. The resulting 4.4% uncertainty of the calibration dominates the 5% overall error on the target polarization value which was typically 0.45.

Published
1994

4. Large enhancement of deuteron polarization with frequency modulated microwaves

Author

J. Vogt, A. Nagaitsev, John C. Mitchell, A. Magnon, D. Crabb, Iskender Atilla Reyhancan, H. J. Kessler, Roland Windmolders, VW Hughes, Kwong Lau, J. Kyynäräinen, I.A. Savin, F. Tessarotto, J. Çuhadar, D. Peshekhonov, E. Rondio, R. Kaiser, A. Arvidson, J. Nassalski, B. W. Mayes, J. H. Moromisato, A. Brüll, C.S. Ozben, J. Pretz, J. Martino, L. Ropelewski, S. Dalla Torre, G. Gracia, T. Matsuda, Gerhard K. Mallot, K. M. Teichert, Anna Zanetti, M. Lowe, A. Rijllart, M. Plo, C. Garabatos, T. Kageya, Jay Roberts, T. Lindqvist, D. Sanders, J. M. Rieubland, M. Grosse Perdekamp, P. Björkholm, Bernardo Adeva, C. A. Whitten, C. Cavata, M. Boutemeur, A. Witzmann, A. Ogawa, J.M. Clement, V. Kukhtin, Abhay Deshpande, G. Salvato, Roy Weinstein, S. Ishimoto, N. De Groot, Takahiro Iwata, F. Feinstein, D. Pose, Alessandro Bressan, N. Horikawa, Heinrich B. Stuhrmann, J. P. Chen, M. Clocchiatti, I. Bird, D. von Harrach, I. Kiryushin, B. Frois, J. Zhao, H. Postma, Yannis K. Semertzidis, J. Pyrlik, N. de Botton, Aina Yañez, J. Saborido, M. Lamanna, G.S. Mutchler, R. van Dantzig, L. Betev, B. Neganov, T. O. Niinikoski, B. E. Bonner, Etienne Burtin, S. E. Rock, Regine Willumeit, I. Sabo, A. Dyring, J.A. Buchanan, Sergey M. Sergeev, V. G. Krivokhijine, Rudiger Voss, J. S. McCarthy, G. van Middelkoop, S. Bültmann, E. Arik, C. A. Heusch, P. Shanahan, E. P. Sichtermann, S. Platchkov, David Miller, J. Lichtenstadt, L. Naumann, Cristino Pérez, M. K. Ballintijn, G.I. Smirnov, T. Hasegawa, T. Layda, C. Dulya, A. Kishi, Patrick Hautle, J. M. Le Goff, A. Rosado, F. Lehar, Ricardo Piegaia, G. Bardin, M. Giorgi, Shafqat Ahmad, A. de Lesquen, F. Sever, Donal Day, R. E. Segel, E. Gülmez, E. M. Kabuß, D. Fasching, S. Lopez-Ponte, T. Pussieux, D. Krämer, A. Sandacz, W. Wislicki, A. Steinmetz, Alan D. Martin, F. Marie, I. A. Golutvin, Ulrich Landgraf, W. Thiel, M. Litmaath, M. Velasco, O. Rondon, S. Eichblatt, M. D. Corcoran, Günter Baum, J. E.J. Oberski, P. Berglund, T. Gaussiran, E. von Goeler, A. Staude, Aldo Penzo, J. Cranshaw, N. Zamiatin, T. J. Ketel, Shoji Okumi, L. Klostermann, R. Seitz, B. Badelek, C. Fernandez, N. Hayashi, R. Birsa, M. Rodriguez, F. Perrot-Kunne, A. Karev, Lawrence Pinsky, Kunikazu Mori, J. C. Faivre, G. Igo, K. Medved, Andrés Gómez, J. A. Garzon, Franco Bradamante, P. Schiavon, Y. Kisselev, M. de Jong, K. P. Schüler, S. Dhawan, and (Astro)-Particles Physics

Subjects
Physics, Nuclear and High Energy Physics, Polarization rotator, Absorption spectroscopy, Scattering, business.industry, FOS: Physical sciences, DYNAMIC NUCLEAR-POLARIZATION, TARGET, Polarization (waves), law.invention, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Optics, Deuterium, law, Nuclear Experiment (nucl-ex), Atomic physics, Detectors and Experimental Techniques, business, Electron paramagnetic resonance, Nuclear Experiment, Instrumentation, Frequency modulation, Microwave
Abstract

We report a large enhancement of 1.7 in deuteron polarization up to values of 0.6 due to frequency modulation of the polarizing microwaves in a two liters polarized target using the method of dynamic nuclear polarization. This target was used during a deep inelastic polarized muon-deuteron scattering experiment at CERN. Measurements of the electron paramagnetic resonance absorption spectra show that frequency modulation gives rise to additional microwave absorption in the spectral wings. Although these results are not understood theoretically, they may provide a useful testing ground for the deeper understanding of dynamic nuclear polarization., 10 pages, including the figures coming in uuencoded compressed tar files in poltar.uu, which also brings cernart.sty and crna12.sty files needed

Published
1995

5. Polarization of the large COMPASS14NH3target

Author

C. Hess, W. Meyer, Y. Kisselev, Fabrice Gautheron, G. Reicherz, K. Kondo, J.H. Koivuniemi, T Michigami, Norihiro Doshita, and T. Iwata

Subjects
Physics, History, Polarization rotator, Elliptical polarization, Polarization (waves), Deep inelastic scattering, Computer Science Applications, Education, Dipole, COMPASS experiment, Physics::Accelerator Physics, High Energy Physics::Experiment, Hyperpolarization (physics), Atomic physics, Nuclear Experiment, Microwave cavity
Abstract

The COMPASS experiment in the CERN M2 beam line is using 1508 cm3 granular solid 14NH3 as polarized proton target material to study the nuclear spin with deep inelastic scattering of polarized muons. The target consists of 2.5 T solenoid and 0.63 T dipole magnets, microwave cavity and large dilution cryostat. Continuous wave NMR is used to determine the polarization of the nuclei that are polarized with dynamic nuclear polarization method using 4 mm microwaves. Determination of the target proton polarization with thermal equilibrium NMR signals at temperatures 1.0 - 1.6 K is discussed.

Published
2009

6. Large COMPASS polarized solid state target for Drell-Yan physics

Author

Miroslav Finger, Fabrice Gautheron, M. Pešek, G. Reicherz, W. Meyer, G. Nukazuka, Norihiro Doshita, Takahiro Iwata, K. Kondo, Y. Kisselev, Alexander Berlin, Jan Matousek, and J.H. Koivuniemi

Subjects
Nuclear physics, Physics, Compass, Solid-state, Accelerators and Storage Rings

7. COMPASS polarized target in 2018 and 2021

Author

Y. Kisselev, Jan Matousek, W. Meyer, G. Reicherz, Norihito Doshita, G. Nukazuka, K. Kondo, Miroslav Finger, Takahiro Iwata, Jakkoo Koivuniemi, and M. Pešek

Subjects
Nuclear physics, Physics, Muon, Distribution function, Large Hadron Collider, Proton, Compass, Nuclear Theory, Measure (physics), High Energy Physics::Experiment, Parton, Nuclear Experiment, Beam (structure)
Abstract

The COMPASS collaboration performed a polarized Drell-Yan program to measure TMD (Transverse Momentum Dependent) and PDFs (Parton Distribution Functions) in 2015. The program was performed for one more year in 2018 to improve the statistics. In the Drell-Yan program a negative pion beam of 190 GeV/c with an intensity of $10^8$ /s will be scattered on a transversely polarized proton target with a length of 110 cm. We also plan to use a transversely polarized deuteron target for SIDIS (Semi-Inclusive-Deep-Inelastic-Scattering) program with muon beam in 2021 just after a long shut down of the CERN accelerators. We will present the improved COMPASS PT system for the 2018 run and present the future plan of the deuteron target in 2021.

Catalog

Books, media, physical & digital resources
See catalog results