## Abstract

The ratios of inclusive electron scattering cross sections of ^{4}He, ^{12}C, and ^{56}Fe to ^{3}He have been measured for the first time. It is shown that these ratios are independent of x_{B} at Q^{2}>1.4 GeV^{2} for x_{B}>1.5, where the inclusive cross section depends primarily on the high momentum components of the nuclear wave function. The observed scaling shows that the momentum distributions at high-momenta have the same shape for all nuclei and differ only by a scale factor. The observed onset of the scaling at Q ^{2}>1.4 GeV^{2} and x_{B}>1.5 is consistent with the kinematical expectation that two-nucleon short range correlations (SRC) dominate the nuclear wave function at P_{m}≳300 MeV/c. The values of these ratios in the scaling region can be related to the relative probabilities of SRC in nuclei with A ≥ 3. Our data, combined with calculations and other measurements of the ^{3}He/deuterium ratio, demonstrate that for nuclei with A ≥ 12 these probabilities are 4.9-5.9 times larger than in deuterium, while for 4He it is larger by a factor of about 3.8.

Original language | English (US) |
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Article number | 014313 |

Pages (from-to) | 143131-1431310 |

Number of pages | 1288180 |

Journal | Physical Review C - Nuclear Physics |

Volume | 68 |

Issue number | 1 |

State | Published - Jul 2003 |

## ASJC Scopus subject areas

- Nuclear and High Energy Physics

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