Search for three-nucleon short-range correlations in light nuclei

Z. Ye , P. Solvignon , D. Nguyen , P. Aguilera , Z. Ahmed , H. Albataineh , K. Allada , B. Anderson

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D. Anez 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. Gueye C. Hanretty J.-O. Hansen M. Hashemi Shabestari D. W. Higinbotham M. Huang S. Iqbal G. Jin N. Kalantarians H. Kang A. Kelleher I. Korover J. Lerose J. Leckey R. Lindgren E. Long J. Mammei D. J. Margaziotis P. Markowitz D. Meekins Z. Meziani R. Michaels M. Mihovilovic N. Muangma C. Munoz Camacho B. 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. Sirca K. Slifer 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 correlationsdatanucleishort-rangesrcsdominancen-srcsobserved

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We present new data probing short-range correlations (SRCs) in nuclei through the measurement of electron scattering off high-momentum nucleons in nuclei. The inclusive 4He/3He cross section ratio is observed to be both x and Q2 independent for 1.5 < x < 2, confirming the dominance of two- nucleon (2N) short-range correlations (SRCs). For x > 2, our data do not support a previous claim of three-nucleon (3N) correlation dominance. While contributions beyond those from stationary 2N- SRCs are observed, our data show that isolating 3N-SRCs is more complicated than for 2N-SRCs.

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Short-range correlations in nuclei
nucl-ex 2026-05 unverdicted novelty 2.0

Short-range correlated pairs account for roughly 20% of nucleons in any nucleus and nearly all high-momentum nucleons, originating from the nucleon-nucleon tensor force.