Tensor Correlations Measured in 3He(e,e'pp)n

Abstract

We have measured the 3He(e,e'pp)n reaction at an incident energy of 4.7 GeV over a wide kinematic range. We identified spectator correlated pp and pn nucleon pairs using kinematic cuts and measured their relative and total momentum distributions. This is the first measurement of the ratio of pp to pn pairs as a function of pair total momentum, $p_{tot}$. For pair relative momenta between 0.3 and 0.5 GeV/c, the ratio is very small at low $p_{tot}$ and rises to approximately 0.5 at large $p_{tot}$. This shows the dominance of tensor over central correlations at this relative momentum.

4 pages, 4 figures, submitted to PRL

References in corpus (15)

• Probing Cold Dense Nuclear Matter
• Measurement of 2- and 3-Nucleon Short Range Correlation Probabilities in Nuclei
• Evidence for the Strong Dominance of Proton-Neutron Correlations in Nuclei
• Tensor Forces and the Ground-State Structure of Nuclei
• Investigation of Proton-Proton Short-Range Correlations via the 12C(e,e'pp) Reaction
• How well do we know the electromagnetic form factors of the proton?
• Femtometer Toroidal Structures in Nuclei
• Observation of Nuclear Scaling in the $A(e,e^{\prime })$ Reaction at $x_B>$1
• n-p Short-Range Correlations from (p,2p + n) Measurements
• Hadrons in the Nuclear Medium
• Exclusive Electro-Disintegration of 3He at high Q2: II. Decay Function Formalism
• The electro-disintegration of few body systems revisited
• Two-Nucleon Momentum Distributions Measured in 3He(e,e'pp)n
• Spin-dependent correlations and the semi-exclusive ^{16}O(e,e'p) reaction
• Ground-state correlations and final state interactions in the process 3He(e,e'pp)n

Cited by in corpus (20)

• Nucleon-Nucleon Correlations, Short-lived Excitations, and the Quarks Within
• Short Range Correlations and the EMC Effect
• Hard probes of short-range nucleon-nucleon correlations
• Symmetry Energy of Nucleonic Matter With Tensor Correlations
• New data strengthen the connection between Short Range Correlations and the EMC effect
• Universality of short-range nucleon-nucleon correlations
• Progress in understanding short-range structure in nuclei: an experimental perspective
• Short-range correlations in nuclei with similarity renormalization group transformations
• Energy and momentum dependence of nuclear short-range correlations - Spectral function, exclusive scattering experiments and the contact formalism
• Quantifying short-range correlations in nuclei
• Universality of nucleon-nucleon short-range correlations: two-nucleon momentum distributions in few-body systems
• Counting the number of correlated pairs in a nucleus
• Momentum distributions and short-range correlations in the deuteron and ${}^3$He with modern chiral potentials
• Delineating effects of tensor force on the density dependence of nuclear symmetry energy
• Short-range correlations and the charge density
• Contact formalism for coupled channels
• Short-range correlations and momentum distributions in mirror nuclei 3H and 3He
• A comparison of forward and backward pp pair knockout in 3He(e,e'pp)n
• Experimental Study of Bremsstrahlung Gamma Ray Emission and Short-Range Correlations in ${}^{124}$Sn+${}^{124}$Sn Collisions at 25 MeV/u
• An overview of symmetric nuclear matter properties from chiral interactions up to fourth order of the chiral expansion