Nucleon form factors: the space-time connection

S. Pacetti<SUP>1; 2</SUP>

Chinese Physics C> 2010, Vol. 34> Issue(6) : 874-876

Nucleon form factors: the space-time connection

S. Pacetti¹ ,
2

¹ INFN, Laboratori Nazionali di Frascati, Frascati, Italy² Museo Storico della Fisica e Centro Studi e Ricerche

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Abstract：
Analyticity of nucleon form factors allows to derive sum rules which, using space-like and time-like data as input, can give unique information about behaviors in energy regions not experimentally accessible. Taking advantage from new time-like data on proton-antiproton differential cross section and hence the possibility to separate electric and magnetic form factors also in the time-like region, we verify the consistency of the asymptotic behavior predicted by the perturbative QCD for the proton magnetic form factor.

References

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S. Pacetti^{1 and 2}. Nucleon form factors: the space-time connection[J]. Chinese Physics C, 2010, 34(6): 874-876.

S. Pacetti^{1 and 2}. Nucleon form factors: the space-time connection[J]. Chinese Physics C, 2010, 34(6): 874-876. shu

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Received: 2010-02-05
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Nucleon form factors: the space-time connection

S. Pacetti¹
2

¹ INFN, Laboratori Nazionali di Frascati, Frascati, Italy² Museo Storico della Fisica e Centro Studi e Ricerche

Received Date: 2010-02-05
Accepted Date: 1900-01-01
Available Online: 2010-06-05

Abstract:

Analyticity of nucleon form factors allows to derive sum rules which, using space-like and time-like data as input, can give unique information about behaviors in energy regions not experimentally accessible. Taking advantage from new time-like data on proton-antiproton differential cross section and hence the possibility to separate electric and magnetic form factors also in the time-like region, we verify the consistency of the asymptotic behavior predicted by the perturbative QCD for the proton magnetic form factor.