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arxiv: 2004.11448 · v2 · pith:L5AJK6DRnew · submitted 2020-04-23 · ⚛️ nucl-ex

Novel observation of isospin structure of short-range correlations in calcium isotopes

D. Nguyen , Z. Ye , P. Aguilera , Z. Ahmed , H. Albataineh , K. Allada , B. Anderson , D. Anez
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K. Aniol J. Annand J. Arrington T. Averett H. Baghdasaryan X. Bai A. Beck S. Beck V. Bellini F. Benmokhtar A. Camsonne C. Chen J.-P. Chen K. Chirapatpimol E. Cisbani M. M. Dalton A. Daniel D. Day W. Deconinck M. Defurne D. Flay N. Fomin M. Friend S. Frullani E. Fuchey F. Garibaldi D. Gaskell S. Gilad R. Gilman S. Glamazdin C. Gu P. Gu\`eye C. Hanretty J.-O. Hansen M. Hashemi Shabestari D. W. Higinbotham M. Huang S. Iqbal G. Jin N. Kalantarians H. Kang A. Kelle her I. Korover J. LeRose J. Leckey S. Li R. Lindgren E. Long J. Mammei D. J. Margaziotis P. Markowitz D. Meekins Z.-E. Meziani R. Michaels M. Mihovilovi\v N. Muangma C. Munoz Camacho B. E. Norum Nuruzzaman K. Pan S. Phillips E. Piasetzky I. Pomerantz M. Posik V. Punjabi X. Qian Y. Qiang X. Qiu P. E. Reimer A. Rakhman S. Riordan G. Ron O. Rondon-Aramayo A. Saha L. Selvy A. Shahinyan R. Shneor S. \v K. Slifer P. Solvignon N. Sparveris R. Subedi V. Sulkosky D. Wang J. W. Watson L. B. Weinstein B. Wojtsekhowski S. A. Wood I. Yaron X. Zhan J. Zhang Y. W. Zhang B. Zhao X. Zheng P. Zhu R. Zielinski
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keywords momentumsrcscorrelationshighinclusiveinteractionsisospinisotopes
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Short Range Correlations (SRCs) have been identified as being responsible for the high momentum tail of the nucleon momentum distribution, n(k). Hard, short-range interactions of nucleon pairs generate the high momentum tail and imprint a universal character on n(k) for all nuclei at large momentum. Triple coincidence experiments have shown a strong dominance of np pairs, but these measurements involve large final state interactions. This paper presents the results from Jefferson Lab experiment E08014 which measured inclusive electron scattering cross-section from Ca isotopes. By comparing the inclusive cross section from 48Ca to 40Ca in a kinematic region dominated by SRCs we provide a new way to study the isospin structure of SRCs.

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