Доклады на Международном Симпозиуме SPIN2004 (Триест, Италия)


Доклад С.Б. Нурушева (опубликован в сборнике трудов, стр. 548): 

Single spin asymmetry measurements for π0 inclusive productions in p+p↑→ π0+X  and π-+p↑→π0+X reactions at 70 and 40 GeV respectively.

Список авторов

A.M.Davidenko, A.A. Derevschikov, V.N. Grishin,  V.Yu. Khodyrev, Yu.A. Matulenko, Yu.M. Melnick, A.P. Meschanin,  
V.V. Mochalov,  L.V. Nogach, S.B. Nurushev, P.A. Semenov, A.F. Prudkoglyad, K.E. Shestermanov, L.F. Soloviev,  
A.N. Vasiliev, A.E. Yakutin, N.S. Borisov, A.N. Fedorov, V.N. Matafonov, A.B. Neganov, Yu.A. Plis, Yu.A. Usov,
A.A. Lukhanin

Abstract

The inclusive π0 asymmetries were measured in reactions p+p↑→π0+X  and π-+p↑→π0+X  at 70 and 40 GeV/c respectively. The measurements were made at the central region (for the first reaction) and asymmetry is compatible with zero in the entire measured pT region. For the second reaction the
asymmetry is zero for  small xF region (-0.4<xF<-0.1, 0.5<pT(GeV/c)<1.5) and increases with growth of |xF|. Averaged over the interval -0.8<xF<-0.4,  1<pT(GeV/c)<2 the asymmetry was (-14╠ 4)%.

Статья опубликована в виде:

Доклад В. Мочалова  (опубликован в сборнике трудов, стр. 551)

AN at small negative values of xF in the reaction p+p↑→ π0+X at 70 GeV and universal threshold in inclusive pion production. 

Список авторов

A.M.Davidenko, A.A. Derevschikov, V.N. Grishin,  V.Yu. Khodyrev, Yu.A. Matulenko, Yu.M. Melnick, A.P. Meschanin,  
V.V. Mochalov,  L.V. Nogach, S.B. Nurushev, P.A. Semenov, A.F. Prudkoglyad, K.E. Shestermanov, L.F. Soloviev,  
A.N. Vasiliev, A.E. Yakutin, N.S. Borisov, A.N. Fedorov, V.N. Matafonov, A.B. Neganov, Yu.A. Plis, Yu.A. Usov,
A.A. Lukhanin

Abstract

The talk continues the series of Single Spin Asymmetry (SSA) π0 inclusive measurements carried out at Protvino 70 GeV accelerator. The asymmetry in the polarized target fragmentation region  grows up in absolute value with xF decreasing and equals to (-16╠5)% at -0.4<xF<-0.25.  The result of the current experiment is in agreement with the universal threshold in pion asymmetries.

Статья опубликована в виде:

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