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arXiv 1408.4928nucl-exhep-ex
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$d^*$(2380)共振背景下的中子-质子散射

Neutron-Proton Scattering in the Context of the $d^*$(2380) Resonance

P. Adlarson, W. Augustyniak, W. Bardan, M. Bashkanov, F. S. Bergmann, M. Berłowski, H. Bhatt, M. Büscher, H. Calén, I. Ciepał, H. Clement, D. Coderre, E. Czerwi… 展开作者

P. Adlarson, W. Augustyniak, W. Bardan, M. Bashkanov, F. S. Bergmann, M. Berłowski, H. Bhatt, M. Büscher, H. Calén, I. Ciepał, H. Clement, D. Coderre, E. Czerwiński, K. Demmich, E. Doroshkevich, R. Engels, A. Erven, W. Erven, W. Eyrich, P. Fedorets, K. Föhl, K. Fransson, F. Goldenbaum, P. Goslawski, A. Goswami, K. Grigoryev, C. --O. Gullström, F. Hauenstein, L. Heijkenskjöld, V. Hejny, M. Hodana, B. Höistad, N. Hüsken, A. Jany, B. R. Jany, L. Jarczyk, T. Johansson, B. Kamys, G. Kemmerling, F. A. Khan, A. Khoukaz, D. A. Kirillov, S. Kistryn, H. Kleines, B. Kłos, M. Krapp, W. Krzemień, P. Kulessa, A. Kupść, K. Lalwani, D. Lersch, B. Lorentz, A. Magiera, R. Maier, P. Marciniewski, B. Mariański, M. Mikirtychiants, H. --P. Morsch, P. Moskal, H. Ohm, I. Ozerianska, E. Perez del Rio, N. M. Piskunov, P. Podkopał, D. Prasuhn, A. Pricking, D. Pszczel, K. Pysz, A. Pyszniak, C. F. Redmer, J. Ritman, A. Roy, Z. Rudy, S. Sawant, S. Schadmand, T. Sefzick, V. Serdyuk, R. Siudak, T. Skorodko, M. Skurzok, J. Smyrski, V. Sopov, R. Stassen, J. Stepaniak, E. Stephan, G. Sterzenbach, H. Stockhorst, H. Ströher, A. Szczurek, A. Täschner, A. Trzciński, R. Varma, G. J. Wagner, M. Wolke, A. Wrońska, P. Wüstner, P. Wurm, A. Yamamoto, L. Yurev, J. Zabierowski, M. J. Zieliński, A. Zink, J. Złomańczuk, P. {Ż}uprański, M. {Ż}urek, R. L. Workman, W. J. Briscoe, I. I. Strakovsky

摘要:

在最近观测到的$d^*$共振结构区域内,用WASA在COSY进行了独家的、运动学上完全的高统计测量,获得了准自由极化中子-质子散射的新数据。本文详细的光束偏振的测定,检查准自由字符的散射过程中,所有获得的$A_y$角分布和新的分波分析,其中包括新的数据产生的共振极点的$^3D_3$ - $^3G_3$耦合分波在($2380\pm10 - i40\pm5$)MeV -根据$d^*$重子共振假设。新的分波解的总截面和微分截面数据的描述,以及特定的组合的自旋相关和自旋转移观测可从COSY-ANKE测量在$T_d$ = 2.27 GeV的效果进行了讨论。

英文摘要:

New data on quasifree polarized neutron-proton scattering, in the region of the recently observed $d^*$ resonance structure, have been obtained by exclusive and kinematically complete high-statistics measurements with WASA at COSY. This paper details the determination of the beam polarization, checks of the quasifree character of the scattering process, on all obtained $A_y$ angular distributions and on the new partial-wave analysis, which includes the new data producing a resonance pole in the $^3D_3$-$^3G_3$ coupled partial waves at ($2380\pm10 - i40\pm5$) MeV -- in accordance with the $d^*$ dibaryon resonance hypothesis. The effect of the new partial-wave solution on the description of total and differential cross section data as well as specific combinations of spin-correlation and spin-transfer observables available from COSY-ANKE measurements at $T_d$ = 2.27 GeV is discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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