{"title":"About Toroidal Model of Leptons in Space-Time Film Theory","authors":"A. Chernitskii","doi":"10.7566/JPSCP.37.020608","DOIUrl":"https://doi.org/10.7566/JPSCP.37.020608","url":null,"abstract":"Nonlinear field model of extremal space-time film is considered. Its space-localized solutions in toroidal coordinates with periodic dependence on time are investigated. An accordance between these soliton solutions and leptons is considered","PeriodicalId":134433,"journal":{"name":"Proceedings of the 24th International Spin Symposium (SPIN2021)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131130586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Differential Cross Sections and Photon Beam Asymmetries of (eta ) Photoproduction on the Proton in LEPS2/BGOegg Experiment","authors":"T. Hashimoto","doi":"10.7566/jpscp.37.021001","DOIUrl":"https://doi.org/10.7566/jpscp.37.021001","url":null,"abstract":"","PeriodicalId":134433,"journal":{"name":"Proceedings of the 24th International Spin Symposium (SPIN2021)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133006841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Rusetsky, V. Golyashov, D. Kustov, Andrey V. Mironov, A. Y. Demin, O. Tereshchenko
{"title":"Photoemission and Injection Properties of Combined Multialkali and III–V NEA Photodiodes: Spin-polarized Source and Spin-detector","authors":"V. Rusetsky, V. Golyashov, D. Kustov, Andrey V. Mironov, A. Y. Demin, O. Tereshchenko","doi":"10.7566/jpscp.37.021207","DOIUrl":"https://doi.org/10.7566/jpscp.37.021207","url":null,"abstract":"","PeriodicalId":134433,"journal":{"name":"Proceedings of the 24th International Spin Symposium (SPIN2021)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114774339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Atomu Watanabe, Yuko Saito, K. Sekiguchi, K. Tateishi, Shoichi Kitayama, Yoshiki Maruta, Takaya Matsui, K. Miki, H. Umetsu, Ren Urayama, T. Uesaka
{"title":"Development of a Polarized Proton Target for Spin-correlation Coefficient Measurements","authors":"Atomu Watanabe, Yuko Saito, K. Sekiguchi, K. Tateishi, Shoichi Kitayama, Yoshiki Maruta, Takaya Matsui, K. Miki, H. Umetsu, Ren Urayama, T. Uesaka","doi":"10.7566/jpscp.37.020905","DOIUrl":"https://doi.org/10.7566/jpscp.37.020905","url":null,"abstract":"","PeriodicalId":134433,"journal":{"name":"Proceedings of the 24th International Spin Symposium (SPIN2021)","volume":"566 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116245885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Saleev, Joerg Pretz, V. Shmakova, P. Lenisa, F. Rathmann
{"title":"Spin Tune Response to Vertical Orbit Correction at COSY","authors":"A. Saleev, Joerg Pretz, V. Shmakova, P. Lenisa, F. Rathmann","doi":"10.7566/jpscp.37.020702","DOIUrl":"https://doi.org/10.7566/jpscp.37.020702","url":null,"abstract":"","PeriodicalId":134433,"journal":{"name":"Proceedings of the 24th International Spin Symposium (SPIN2021)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129646433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Search for the H-Dibaryon near (Lambda Lambda ) and (Xi ^{ - }p) Thresholds via (^{12}text{C}(K^{ - },K^{ + })) Reactions at J-PARC","authors":"S. Kim, Y. Ichikawa, S. Hayakawa, J. Ahn","doi":"10.7566/jpscp.37.021002","DOIUrl":"https://doi.org/10.7566/jpscp.37.021002","url":null,"abstract":"","PeriodicalId":134433,"journal":{"name":"Proceedings of the 24th International Spin Symposium (SPIN2021)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115047112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Poblaguev, G. Atoian, N. Buttimore, A. Zelenski
{"title":"On the Possibility of Measuring the Polarization of a 3He Beam at EIC by the HJET Polarimeter","authors":"A. Poblaguev, G. Atoian, N. Buttimore, A. Zelenski","doi":"10.7566/JPSCP.37.021103","DOIUrl":"https://doi.org/10.7566/JPSCP.37.021103","url":null,"abstract":"The requirements for hadron polarimetry at the future Electron Ion Collider (EIC) include measurements of the absolute helion (${}^3text{He}$, $h$) beam polarization with systematic uncertainties better than $sigma^text{syst}_P/Plesssim1%$. Here, we consider a possibility to utilize the Polarized Atomic Hydrogen Gas Jet Target (HJET) for precision measurement of polarization of the $sim$100 GeV/n helion beam. HJET, which serves to determine absolute proton beam polarization at the Relativistic Heavy Ion Collider, provides the accuracy of about $delta^text{syst}P/Psim0.5%$. Potential problems for adapting the HJET method for the EIC helion beam include (i) necessity to know the ratio of $p^uparrow{h}$ and $h^uparrow{p}$ analyzing powers $A_text{N}^{ph}(t)/A_text{N}^{hp}(t)$ with high precision, ({ii) possible beam ${}^3text{He}$ breakup, and (iii) operation in a 10 ns bunch spacing beam. Preliminary results of an analysis discussed here indicate that the listed problems can be overcome and the helion beam absolute polarization can be measured by HJET with the required accuracy.","PeriodicalId":134433,"journal":{"name":"Proceedings of the 24th International Spin Symposium (SPIN2021)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128608094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Three-loop Corrections to the Quark and Gluon Decomposition of the QCD Trace Anomaly and Their Applications","authors":"Kazuhiro Tanaka","doi":"10.7566/JPSCP.37.020405","DOIUrl":"https://doi.org/10.7566/JPSCP.37.020405","url":null,"abstract":"In the QCD energy-momentum tensor $T^{munu}$, the terms that contribute to physical matrix elements are expressed as the sum of the gauge-invariant quark part and gluon part. Each part undergoes the renormalization due to the interactions among quarks and gluons, although the total tensor $T^{munu}$ is not renormalized thanks to conservation of energy and momentum. We show that, through the renormalization, each of the quark and gluon parts of $T^{munu}$ receives a definite amount of anomalous trace contribution, such that their sum reproduces the well-known QCD trace anomaly. We provide a procedure to derive such anomalous trace contribution for each quark/gluon part to all orders in perturbation theory, and obtain the corresponding explicit formulas up to three-loop order in the $overline{rm MS}$ scheme in the dimensional regularization. We apply our three-loop formulas of the quark/gluon decomposition of the trace anomaly to calculate the anomaly-induced mass structure of nucleons as well as pions. Another application of our three-loop formulas is a quantitative analysis for the constraints on the twist-four gravitational form factors of the nucleon, $bar{C}_{q,g}$.","PeriodicalId":134433,"journal":{"name":"Proceedings of the 24th International Spin Symposium (SPIN2021)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126333128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Matsumiya, H. Akatsuka, C. Bidinosti, C. Davis, B. Franke, D. Fujimoto, M. Gericke, P. Giampa, R. Golub, S. Hansen-Romu, K. Hatanaka, T. Hayamizu, Takashi Higuchi, G. Ichikawa, S. Imajo, B. Jamieson, S. Kawasaki, M. Kitaguchi, W. Klassen, Emma Klemets, A. Konaka, E. Korkmaz, E. Korobkina, F. Kuchler, Maedeh Lavvaf, L. Lee, T. Lindner, K. Madison, Y. Makida, R. Mammei, J. Mammei, Jeffery W. Martin, M. McCrea, E. Miller, K. Mishima, T. Momose, T. Okamura, H. Ong, R. Picker, W. Ramsay, W. Schreyer, H. Shimizu, S. Sidhu, Shawn Stargardter, I. Tanihata, S. Vanbergen, W. Oers, Y. Watanabe
{"title":"The Precision nEDM Measurement with UltraCold Neutrons at TRIUMF","authors":"R. Matsumiya, H. Akatsuka, C. Bidinosti, C. Davis, B. Franke, D. Fujimoto, M. Gericke, P. Giampa, R. Golub, S. Hansen-Romu, K. Hatanaka, T. Hayamizu, Takashi Higuchi, G. Ichikawa, S. Imajo, B. Jamieson, S. Kawasaki, M. Kitaguchi, W. Klassen, Emma Klemets, A. Konaka, E. Korkmaz, E. Korobkina, F. Kuchler, Maedeh Lavvaf, L. Lee, T. Lindner, K. Madison, Y. Makida, R. Mammei, J. Mammei, Jeffery W. Martin, M. McCrea, E. Miller, K. Mishima, T. Momose, T. Okamura, H. Ong, R. Picker, W. Ramsay, W. Schreyer, H. Shimizu, S. Sidhu, Shawn Stargardter, I. Tanihata, S. Vanbergen, W. Oers, Y. Watanabe","doi":"10.7566/JPSCP.37.020701","DOIUrl":"https://doi.org/10.7566/JPSCP.37.020701","url":null,"abstract":"The TRIUMF Ultra-Cold Advanced Neutron (TUCAN) collaboration aims at a precision neutron electric dipole moment (nEDM) measurement with an uncertainty of 10 − 27 e · cm, which is an order-of-magnitude better than the current nEDM upper limit and enables us to test Supersymmetry. To achieve this precision, we are developing a new high-intensity ultracold neutron (UCN) source using super-thermal UCN production in superfluid helium (He-II) and a nEDM spectrometer. The current development status of them is reported in this article.","PeriodicalId":134433,"journal":{"name":"Proceedings of the 24th International Spin Symposium (SPIN2021)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132422143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Akatsuka, Takashi Higuchi, S. Hansen-Romu, K. Hatanaka, Tomohiro Hino, G. Ichikawa, S. Imajo, B. Jamieson, S. Kawasaki, M. Kitaguchi, R. Matsumiya, K. Mishima
{"title":"Study of Thin Iron Films for Polarization Analysis of Ultracold Neutrons","authors":"H. Akatsuka, Takashi Higuchi, S. Hansen-Romu, K. Hatanaka, Tomohiro Hino, G. Ichikawa, S. Imajo, B. Jamieson, S. Kawasaki, M. Kitaguchi, R. Matsumiya, K. Mishima","doi":"10.7566/JPSCP.37.020801","DOIUrl":"https://doi.org/10.7566/JPSCP.37.020801","url":null,"abstract":"The TUCAN (TRIUMF Ultra-Cold Advanced Neutron) collaboration aims to search for the neutron electric dipole moment (nEDM) with unprecedented precision. One of the essential elements for the nEDM measurement is a polarization analyzer of ultracold neutrons (UCNs), whose main component is a magnetized thin iron film. Several thin iron films were deposited on aluminum and silicon substrates and were characterized by vibrating sample magnetometry and cold-neutron reflectometry. A magnetic field required to saturate the iron film is ∼ 12 kA / m for those on the aluminum substrates and 6.4 kA / m for the silicon substrates. The magnetic potential of the iron films on the Si substrate was estimated to be 2 T by the neutron reflectometry, which is su ffi cient performance for an UCN polarization analyzer of the nEDM measurement.","PeriodicalId":134433,"journal":{"name":"Proceedings of the 24th International Spin Symposium (SPIN2021)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133379026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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