Comparison of spin asymmetries and cross sections in π0 production by 200 GeV polarized antiprotons and protons-猫眼课题宝

DOI：

10.1016/0370-2693(91)91351-u

发表时间：

1991-05

期刊：

Physics Letters B

影响因子：

4.4

通讯作者：

中科院分区：

物理与天体物理2区

文献类型：

作者：

D. Adams;N. Akchurin;N. Belikov;J. Bystrický;M. Corcoran;J. Cossairt;J. Cranshaw;A. Derevshchikov;H. En’yo;H. Funahashi;Y. Goto;Oleg A Grachov;D. Grosnick;D. Hill;K. Imai;Y. Itow;K. Iwatani;K. Krger;K. Kuroda;M. Laghai;F. Lehár;A. Lesquen;D. Lopiano;F. Luehring;T. Maki;S. Makino;A. Masaike;A. Yu;A. Meshchanin;A. Michalowicz;D. Miller;K. Miyake;T. Nagamine;F. Nessi-Tedaldi;M. Nessi;C. Nguyen;S. Nurushev;Y. Ohashi;Y. Onel;D. Patalakha;G. Pauletta;A. Penzo;A. Read;J. Roberts;L. Rossum;V. Rykov;N. Saito;G. Salvato;P. Schiavon;J. Skeens;V. Solovyanov;H. Spinka;R. Takashima;F. Takeutchi;N. Tamura;N. Tanaka;D. Underwood;A. Vasilev;A. Villari;J. White;S. Yamashita;A. Yokosawa;T. Yoshida;A. Zanetti

在费米实验室测量了200 GeV横向极化反质子在0.5&lt；p{subt}&lt；2GeV/c产生{pi}{sup 0}时的单自旋不对称性A{subN}(Antipp)。我们观察到，对于质子产生的{pi}{sup 0}，A{subN}(Anti Pp)具有相同的符号，类似的x{subF}依赖关系，其量级大约是A{subN}(Pp)的一半。我们还给出了反质子和质子产生{pi}{sup 0}的自旋平均截面之比。(原名)。

The single-spin asymmetry A{sub N}(anti pp) for inclusive {pi}{sup 0} production at 0.5 < p{sub t} < 2GeV/c by 200 GeV transversely-polarized antiprotons on protons has been measured at Fermilab over a wide range of x{sub F}. We observe that A{sub N}(anti pp) has the same sign, a similar x{sub F} dependence, and about half the magnitude as A{sub N}(pp) for {pi}{sup 0} production by protons. We also present the ratio of the spin-averaged sections for {pi}{sup 0} production by antiproton and by protons. (orig.).

Comparison of spin asymmetries and cross sections in π0 production by 200 GeV polarized antiprotons and protons

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