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Differential cross sections for neutron-proton scattering in the region of the d*(2380) dibaryon resonance
Physical Review C ( IF 3.1 ) Pub Date : 2020-07-10 , DOI: 10.1103/physrevc.102.015204
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 , 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 , M. Wolke , A. Wrońska , P. Wüstner , P. Wurm , A. Yamamoto , L. Yurev , J. Zabierowski , M. J. Zieliński , A. Zink , J. Złomańczuk , P. Żuprański , M. Żurek , R. L. Workman , W. J. Briscoe , I. I. Strakovsky , A. Švarc , ,

Differential cross sections have been extracted from exclusive and kinematically complete high-statistics measurements of quasifree polarized $\vec{n}p$ scattering performed in the energy region of the $d^*(2380)$ dibaryon resonance covering the the range of beam energies $T_n$ = 0.98 - 1.29 GeV ($\sqrt s$ = 2.32 - 2.44 GeV). The experiment was carried out with the WASA-at-COSY setup having a polarized deuteron beam impinged on the hydrogen pellet target and utilizing the quasifree process $dp \to np + p_{spectator}$. That way the $np$ differential cross section $\sigma(\Theta)$ was measured over a large angular range. The obtained angular distributions complement the corresponding analyzing power $A_y(\Theta)$ measurements published previously. A SAID partial-wave analysis incorporating the new data strengthens the finding of a resonance pole in the coupled $^3D_3 - ^3G_3$ waves.

中文翻译:

d*(2380) 二重子共振区域中中子-质子散射的微分截面

差分横截面是从在覆盖光束范围的 $d^*(2380)$ 双重子共振的能量区域中进行的准自由极化 $\vec{n}p$ 散射的独家和运动学上完整的高统计测量中提取的能量 $T_n$ = 0.98 - 1.29 GeV($\sqrt s$ = 2.32 - 2.44 GeV)。该实验是使用 WASA-at-COSY 装置进行的,该装置具有撞击氢颗粒目标的极化氘核束,并利用准自由过程 $dp \to np + p_{spectator}$。这样 $np$ 微分横截面 $\sigma(\Theta)$ 是在大角度范围内测量的。获得的角度分布补充了先前发布的相应分析功率 $A_y(\Theta)$ 测量值。
更新日期:2020-07-10
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