Measurement of the proton form factor ratio at low momentum transfer

2016 ◽  
Author(s):  
Moshe Friedman

2011 ◽  
Vol 26 (35) ◽  
pp. 2605-2614 ◽  
Author(s):  
G. RON

Recently an experiment at Jefferson Lab has measured the proton form factor ratio, [Formula: see text], down to Q2 ~ 0.3 GeV 2 with unprecedented precision. Based on the results from this experiment, a re-analysis was carried out for the world data on proton form factors, and a new result was extracted for the proton charge radius. The new result is consistent with published CODATA results and is at odds with the new muonic hydrogen measurement at PSI. We present the results of the new measurement, as well as discuss an upcoming experiment to measure the form factor ratio down to even lower Q2.



2012 ◽  
Vol 85 (4) ◽  
Author(s):  
A. J. R. Puckett ◽  
E. J. Brash ◽  
O. Gayou ◽  
M. K. Jones ◽  
L. Pentchev ◽  
...  


2020 ◽  
Vol 101 (3) ◽  
Author(s):  
A. Liyanage ◽  
W. Armstrong ◽  
H. Kang ◽  
J. Maxwell ◽  
J. Mulholland ◽  
...  




2014 ◽  
Vol 66 ◽  
pp. 06019 ◽  
Author(s):  
Vina Punjabi ◽  
Charles F. Perdrisat




2016 ◽  
pp. 3961-3965
Author(s):  
A. Bhattacharya ◽  
R. Saha ◽  
R. Ghosh

The form factors of the heavy mesons like Bc+ , ηb, B0s, F+, B0 , D, ψ,  ϕ, proton and also deuteron are investigated in the framework of the statistical model for low momentum transfer Q in the range 0.01 ≤ Q2 ≤ 0.1 GeV2.It has been observedthat the heavy-light flavour mesonic form factors show a scaling behavior in the aforesaid low Q2 range. The proton form factor also shows almost scaling in the aforesaid range whereas the deuteron form factor shows a clear violation indicating large contribution from sea quarks and gluon sector.





2010 ◽  
Vol 37 (7) ◽  
pp. 075007 ◽  
Author(s):  
Y Yan ◽  
K Khosonthongkee ◽  
C Kobdaj ◽  
P Suebka


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