scholarly journals Study of the Quasielastic 3He(e,e'p) Reaction at Q2=1.5 (GeV/c)2 up to Missing Momenta of 1 GeV/c

2003 ◽  
Author(s):  
Marat Rvachev
Keyword(s):  
1996 ◽  
Vol 54 (3) ◽  
pp. 1322-1328 ◽  
Author(s):  
V. Van der Sluys ◽  
J. Ryckebusch ◽  
M. Waroquier
Keyword(s):  

1998 ◽  
Vol 25 (1-3) ◽  
pp. 115-132 ◽  
Author(s):  
W.-J. Kasdorp ◽  
W. H. A. Hesselink ◽  
D. Groep ◽  
E. Jans ◽  
N. Kalantar-Nayestanaki ◽  
...  

2003 ◽  
Vol 18 (02n06) ◽  
pp. 235-243
Author(s):  
◽  
ARUN SAHA

In a new and detailed experimental program carried out at Jefferson Laboratory, the few nucleon systems has been studied via Electrodisintegration of Deuterium and the Helium nuclei. Interesting new results probing the high momentum structure have been studied via the (e,e'p) reaction using the two high resolution spectrometers in Hall A and various kinematic regions have been investigated. Detailed and precise information on the effective bound state momentum distributions have been measured for the first time up to missing momenta of 1 Gev/c in 3 He , exhibiting significant strength at these high momenta which the standard nuclear calculations fail to explain and could be an indication of the onset of non-nucleonic degrees of freedom. The continuum region in 3 He has also been investigated in great detail looking for nuclear correlations and quasi-deuteron strength. Response function separations have been carried out to extract details of the few body structure and relativistic dynamics. Measurements made so far on D and 4 He have focussed on specific kinematic regions and there are plans to extend them over kinematic ranges similar to the 3 He investigation.


2001 ◽  
Vol 684 (1-4) ◽  
pp. 464-466
Author(s):  
S.A. Sofianos ◽  
G. Ellerkmann ◽  
W. Sandhas
Keyword(s):  

1995 ◽  
Vol 363 (4) ◽  
pp. 217-222 ◽  
Author(s):  
A. Bianconi ◽  
S. Jeschonnek ◽  
N.N. Nikolaev ◽  
B.G. Zakharov

1996 ◽  
Vol 366 (1-4) ◽  
pp. 44-50 ◽  
Author(s):  
L.J.H.M. Kester ◽  
H.P. Blok ◽  
W.H.A. Hesselink ◽  
A. Pellegrino ◽  
E. Jans ◽  
...  
Keyword(s):  

1947 ◽  
Vol 43 (2) ◽  
pp. 196-204 ◽  
Author(s):  
T. S. Chang

It is pointed out that the equations of motion for any field obtained by varying a Lagrangian subject to auxiliary conditions are exactly equivalent to a certain set of canonical equations and that the commutation relations between the dynamical variables for the latter equations are Lorentz-invariant. By extending the theory to Lagrangians containing higher derivatives of the field quantities, it is shown that any given set of field equations can be put into the canonical form, though it is not derived from variational principles. The question of Lagrangians with missing momenta is also considered. It is shown that if the Lagrangian is ‘gauge-invariant’, some of the p's must be missing and the corresponding Eulerian equations can be replaced by equations containing no q and then can be replaced by initial conditions. The commutation relations between gauge-invariant quantities are Lorentz-invariant. For Lagrangians which are not gauge-invariant but are such as to have missing momenta, the passage to quantum theory will in general give rise to non-Lorentz-invariant commutation relations. In both cases, the equations of motion can be cast in canonical forms.


2009 ◽  
Vol 79 (3) ◽  
Author(s):  
Won Sang Cho ◽  
Kiwoon Choi ◽  
Yeong Gyun Kim ◽  
Chan Beom Park
Keyword(s):  

2018 ◽  
Vol 2018 (1) ◽  
Author(s):  
Dieter Lüst ◽  
Emanuel Malek ◽  
Marc Syväri
Keyword(s):  

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