HIGH-XT SINGLE-SPIN ASYMMETRY IN PI(0) AND ETA-PRODUCTION AT XF=0 BY 200-GEV POLARIZED ANTIPROTONS AND PROTONS

被引：41

作者：

ADAMS, DL

AKCHURIN, N

BELIKOV, NI

BYSTRICKY, J

CORCORAN, MD

COSSAIRT, JD

CRANSHAW, J

DEREVSCHIKOV, AA

ENYO, H

FUNAHASHI, H

GOTO, Y

GRACHOV, OA

GROSNICK, DP

HILL, DA

IMAI, K

ITOW, Y

IWATANI, K

KRUEGER, KW

KURODA, K

LAGHAI, M

LEHAR, F

DELESQUEN, A

LOPIANO, D

LUEHRING, FC

MAKI, T

MAKINO, S

MASAIKE, A

MATULENKO, YA

MESCHANIN, AP

MICHALOWICZ, A

MILLER, DH

MIYAKE, K

NAGAMINE, T

NESSITEDALDI, F

NESSI, M

NGUYEN, C

NURUSHEV, SB

OHASHI, Y

ONEL, Y

PATALAKHA, DI

PAULETTA, G

PENZO, A

READ, AL

ROBERTS, JB

VANROSSUM, L

RYKOV, VL

SAITO, N

SALVATO, G

SCHIAVON, P

SKEENS, J

机构：

[1] UNIV IOWA,DEPT PHYS,IOWA CITY,IA 52242

[2] INST HIGH ENERGY PHYS,SERPUKHOV 142284,USSR

[3] CENS,F-91191 GIF SUR YVETTE,FRANCE

[4] FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510

[5] KYOTO UNIV,DEPT PHYS,KYOTO 606,JAPAN

[6] ARGONNE NATL LAB,ARGONNE,IL 60439

[7] HIROSHIMA UNIV,HIROSHIMA 724,JAPAN

[8] NORTHEASTERN STATE UNIV,TAHLEQUAH,OK 74464

[9] LAB PHYS PARTICULES,F-74017 ANNECY LE VIEUX,FRANCE

[10] NORTHWESTERN UNIV,DEPT PHYS,EVANSTON,IL 60201

[11] UNIV OCCUPAT & ENVIRONM HLTH,KITAKYUSHU,FUKUOKA 807,JAPAN

[12] UNIV UDINE,I-33100 UDINE,ITALY

[13] UNIV TRIESTE,DIPARTIMENTO FIS,I-34100 TRIESTE,ITALY

[14] UNIV MESSINA,DIPARTIMENTO FIS,I-98100 MESSINA,ITALY

[15] KYOTO UNIV,KYOTO 612,JAPAN

[16] KYOTO SANGYO UNIV,KYOTO 612,JAPAN

[17] OKAYAMA UNIV,OKAYAMA 700,JAPAN

[18] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545

[19] OSAKA CITY UNIV,OSAKA 558,JAPAN

来源：

PHYSICS LETTERS B | 1992年 / 276卷 / 04期

关键词：

D O I：

10.1016/0370-2693(92)91679-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A measurement of the single-spin asymmetry A(N) in P up + P --> pi-0 + X at 200 GeV with x(F) = O shows a transition in the production process from a "low-x(T)" regime with A(N) = 0, through an intermediate region of negative asymmetry, to a "high-x(T)" regime with A(N) > 0.3. This transition occurs at x(T) almost-equal-to 0.4 and is consistent with x(T)-scaling of A(N) in pion production using polarized beams or targets from square-root -s = 5.2 to 19.4 GeV. Results for A(N) in eta-production by polarized protons and in pi-0 production by polarized antiprotons are also presented.

引用

页码：531 / 535

页数：5

共 13 条

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SIVERS, D .

PHYSICAL REVIEW D, 1990, 41 (01) :83-90

[13]

TROSHIN SM, 1990, 9TH P INT S HIGH EN, V1, P459

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