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Two-nucleon momentum distributions measured in 3He(e,e'pp)n |
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| Authors: | Niyazov R A Weinstein L B Adams G Ambrozewicz P Anciant E Anghinolfi M Asavapibhop B Asryan G Audit G Auger T Avakian H Bagdasaryan H Ball J P Barrow S Battaglieri M Beard K Bektasoglu M Bellis M Benmouna N Berman B L Bertozzi W Bianchi N Biselli A S Boiarinov S Bonner B E Bouchigny S Bradford R Branford D Brooks W K Burkert V D Butuceanu C Calarco J R Carman D S Carnahan B Cetina C Chen S Ciciani L Cole P L Coleman A Cords D Corvisiero P Crabb D Crannell H Cummings J P De Sanctis E Dashyan N DeVita R Degtyarenko P V Denizli H Dennis L Dharmawardane K V Dhuga K S Djalali C Dodge G E Doughty D |
| Affiliation: | Old Dominion University, Norfolk, Virginia 23529, USA. |
| Abstract: | We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for "fast" nucleons (p>250 MeV/c) peaks where two nucleons each have 20% or less, and the third nucleon has most of the transferred energy. These fast pp and pn pairs are back to back with little momentum along the three-momentum transfer, indicating that they are spectators. Calculations by Sargsian and by Laget also indicate that we have measured distorted two-nucleon momentum distributions by striking one nucleon and detecting the spectator correlated pair. |
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