Borreani,%20G.
PBAR P --> E+ E-
Max results
Sort by Reverse order

Showing 2 of 2 results

Measurements of the magnetic form-factor of the proton for timelike momentum transfers

Andreotti, M ; Bagnasco, S ; Baldini, W ; et al.
Phys.Lett.B 559 (2003) 20-25, 2003.
Inspire Record 617594 DOI 10.17182/hepdata.27006

Fermilab experiment E835 has measured the cross section for the reaction p ̄ p→e + e − at s =11.63, 12.43, 14.40 and 18.22 GeV 2 . From the analysis of the 66 observed events new high-precision measurements of the proton magnetic form factor are obtained.

3 data tables
Table 1

The measured cross section in the kinematic range defined by COS(THETA).

Table 2

The proton magnetic form factor calculated assuming the equality of the electric and magnetic form factors.

Table 3

The proton magnetic form factor calculated assuming a negligible electric contribution.


Measurement of the proton electromagnetic form-factors in the timelike region at 8.9-GeV**2 - 13-GeV**2

The E760 collaboration Armstrong, T.A. ; Bettoni, D. ; Bharadwaj, V. ; et al.
Phys.Rev.Lett. 70 (1993) 1212-1215, 1993.
Inspire Record 340584 DOI 10.17182/hepdata.19781

Cross sections for the reaction pp¯→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 GM(q2)∝q−4αs2(q2) for q2≥5 (GeV/c)2.

5 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…