Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 33
Filter
Add more filters










Publication year range
1.
Phys Rev Lett ; 103(15): 152501, 2009 Oct 09.
Article in English | MEDLINE | ID: mdl-19905628

ABSTRACT

Cross sections for the 3He(e,e' pn)1H reaction were measured for the first time at energy transfers of 220 and 270 MeV for several momentum transfers ranging from 300 to 450 MeV/c. Cross sections are presented as a function of the momentum of the recoil proton and the momentum transfer. Continuum Faddeev calculations using the Argonne V18 and Bonn-B nucleon-nucleon potentials overestimate the measured cross sections by a factor 5 at low recoil proton momentum with the discrepancy becoming smaller at higher recoil proton momentum.

2.
Phys Rev Lett ; 98(14): 142301, 2007 Apr 06.
Article in English | MEDLINE | ID: mdl-17501267

ABSTRACT

We report on a study of the longitudinal to transverse cross section ratio, R=sigmaL/sigmaT, at low values of x and Q2, as determined from inclusive inelastic electron-hydrogen and electron-deuterium scattering data from Jefferson Laboratory Hall C spanning the four-momentum transfer range 0.06

3.
Phys Rev Lett ; 95(17): 172501, 2005 Oct 21.
Article in English | MEDLINE | ID: mdl-16383822

ABSTRACT

The reactions 4He(e, e' p3He)pi- and 4He(e, e' p3He)pi0 were studied simultaneously, and for the first time, in a large kinematical domain including the Delta-resonance region. This was achieved by detecting the recoiling 3He and 3H nuclei instead of the emitted pions. The dependences of the cross section on the recoil momentum p(rec), the invariant mass WpiN, and the direction thetapi,q' and phipi,q' of the produced pion, are globally well described by the results of (quasifree) distorted-wave impulse approximation calculations. However, in the Delta-resonance region there are clear discrepancies, which point to medium modifications of the Delta in 4He.

4.
Phys Rev Lett ; 89(17): 172501, 2002 Oct 21.
Article in English | MEDLINE | ID: mdl-12398662

ABSTRACT

The differential cross section for electron-induced neutron knockout in the reaction 4He(e,e(')n)(3)He has been measured for the first time with a statistical accuracy of 11%. The experiment was performed in quasielastic kinematics at a momentum transfer of 300 MeV/c and in the missing-momentum range of 25-70 MeV/c. The comparison of the data with theoretical calculations shows an impressive increase of the cross section resulting from final state interaction effects. Specifically, the p-n charge-exchange process dominates the cross section in this kinematical regime.

7.
Phys Rev C Nucl Phys ; 50(3): 1626-1631, 1994 Sep.
Article in English | MEDLINE | ID: mdl-9969823
10.
Phys Rev C Nucl Phys ; 48(3): R964-R967, 1993 Sep.
Article in English | MEDLINE | ID: mdl-9968988
13.
14.
Phys Rev Lett ; 67(1): 18-21, 1991 Jul 01.
Article in English | MEDLINE | ID: mdl-10044041
17.
Phys Rev Lett ; 64(19): 2250-2253, 1990 May 07.
Article in English | MEDLINE | ID: mdl-10041626
SELECTION OF CITATIONS
SEARCH DETAIL
...