PROTON ELECTROMAGNETIC FORM-FACTORS IN THE TIME-LIKE REGION FROM 8.9 TO 13.0 GEV(2)

被引：160

作者：

ARMSTRONG, TA

BETTONI, D

BHARADWAJ, V

BIINO, C

BORREANI, G

BROEMMELSIEK, D

BUZZO, A

CALABRESE, R

CECCUCCI, A

CESTER, R

CHURCH, MD

DALPIAZ, P

DALPIAZ, PF

DIBENEDETTO, R

DIMITROYANNIS, D

FABBRI, M

FAST, JE

GIANOLI, A

GINSBURG, CM

GOLLWITZER, KE

HAHN, AA

HASAN, MA

HSUEH, SY

LEWIS, RA

LUPPI, E

MACRI, M

MAJEWSKA, A

MANDELKERN, MA

MARCHETTO, F

MARINELLI, M

MARQUES, JL

MARSH, W

MARTINI, M

MASUZAWA, M

MENICHETTI, E

MIGLIORI, A

MUSSA, R

PALESTINI, S

PALLAVICINI, M

PASTRONE, N

PATRIGNANI, C

PEOPLES, J

PESANDO, L

PETRUCCI, F

PIA, MG

PORDES, S

RAPIDIS, PA

RAY, RE

REID, JD

RINAUDO, G

机构：

[1] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510

[2] INFN,I-44100 FERRARA,ITALY

[3] UNIV FERRARA,I-44100 FERRARA,ITALY

[4] INFN,I-16146 GENOA,ITALY

[5] UNIV GENOA,I-16146 GENOA,ITALY

[6] UNIV CALIF IRVINE,IRVINE,CA 92717

[7] NORTHWESTERN UNIV,EVANSTON,IL 60208

[8] UNIV TURIN,I-10125 TURIN,ITALY

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.70.1212

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Cross sections for the reaction ppBAR --> e+e- have been measured at s = 8.9, 12.4, and 13.0 GeV2. The cross sections have been analyzed to obtain the proton electromagnetic form factors in the timelike region. We find that G(M)(q2) is-proportional-to q-4alpha(s)2(q2) for q2 greater-than-or-equal-to 5 (GeV/c)2.

引用

页码：1212 / 1215

页数：4

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