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

Nucleon form factors: the space-time connection

S. Pacetti¹,
2

¹INFN, Laboratori Nazionali di Frascati, Frascati, Italy²Museo 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

1","");" href="javascript:void(0);">S. Pacetti¹
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¹INFN, Laboratori Nazionali di Frascati, Frascati, Italy²Museo 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.