Spin physics with antiprotons
Spin physics with antiprotons
复制标题
反质子的自旋物理
DOI：
10.1007/bf03031992
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
N. Zurlo
中科院分区：
文献类型：
--
作者：
M. Maggiora;V. Abazov;G. Alexeev;M. Alexeev;A. Amoroso;N. Angelov;S. Baginyan;F. Balestra;V. Baranov;Y. Batusov;I. Belolaptikov;R. Bertini;A. Bianconi;R. Birsa;T. Blokhintseva;A. Bonyushkina;F. Bradamante;A. Bressan;M. Bussa;V. Butenko;M. Colantoni;M. Corradini;S. Torre;A. Demyanov;O. Denisov;V. Drozdov;J. Dupák;G. Erusalimtsev;L. Fava;A. Ferrero;L. Ferrero;M. Finger;M. Finger;V. Frolov;R. Garfagnini;M. Giorgi;V. Kalinnikov;Y. Kharzheev;N. Khomutov;A. Kirilov;Y. Kisselev;E. Komissarov;A. Korenchenko;A. Kotzinian;V. Kovalenko;N. Kravchuk;N. Kuchinski;E. Rizzini;V. Lyashenko;A. Maggiora;V. Malyshev;A. Martin;Y. Merekov;A. Moiseenko;A. Olchevski;V. Panyushkin;D. Panzieri;G. Piragino;G. Pontecorvo;A. Popov;S. Porokhovoy;V. Pryanichnikov;M. Radici;M. Rekalo;A. Rozhdestvensky;N. Russakovich;P. Schiavon;O. Shevchenko;A. Shishkin;V. Sidorkin;N. Skachkov;M. Slunecka;A. Srnka;V. Tchalyshev;F. Tessarotto;E. Tomasi;F. Tosello;E. Velicheva;L. Venturelli;L. Vertogradov;M. Virius;G. Zosi;N. Zurlo
讨论了 GSI 提供的反质子束（可能是偏振的）所带来的新可能性。通过访问 Drell-Yan 过程中与截面相关的实验不对称性，可以促进对核子结构的研究，其中仅出现部分子分布函数 (PDF)，而碎片函数没有任何贡献；这些过程不受横函数 h1(x) 的手性抑制的影响。还讨论了超子产生中的自旋不对称性和单自旋不对称性，以及诸如电和磁核子形状因子和开放魅力产生等其他项目。为每个实际情况提供了计数率估计。提出了可能的实验装置的草图。
New possibilities arising from the availability at GSI of antiproton beams, possibly polarised, are discussed. The investigation of the nucleon structure can be boosted by accessing in Drell-Yan processes experimental asymmetries related to cross-sections in which the parton distribution functions (PDF) only appear, without any contribution from fragmentation functions; such processes are not affected by the chiral suppression of the transversity functionh1(x). Spin asymmetries in hyperon production and Single Spin Asymmetries are discussed as well, together with further items like electric and magnetic nucleonic form factors and open charm production. Counting rates estimations are provided for each physical case. The sketch of a possible experimental apparatus is proposed.