Probing for high-momentum protons in He4 via the He4(e,e′p)X reactions

S Iqbal,J S Goodwill,S Riordan,D J Margaziotis,M Friend,E Long,C Hanretty,S Frullani,N Kalantarians,S A Wood,F Garibaldi,L Selvy,O Rondon-Aramayo,H Baghdasaryan,D Finton,N Muangma,E Cisbani,D Flay,D Anez,J W Watson,R Zielinski,X Zhan,P Solvignon,T Averett,A Shahinyan,R Shneor,D Gaskell,J Leckey,A Beck,R Subedi,E Fuchey,E Piasetzky,M Posik,R Michaels,X Bai,I Korover,N See,K Chirapatpimol,M M Dalton,P Markowitz,S K Phillips ,I Pomerantz,Alyssa Gadsby ,H Kang,J M Udı́as ,H Al-Bataineh ,X Qian,J J Lerose ,P Aguilera,V Punjabi,Aiden Boyer ,J.-P Chen,K Allada,K Pan,C.d Gu ,M Shabestari ,Min Huang ,J.o Hansen ,P Zhu,B Wojtsekhowski,C Muñoz Camacho ,D W Higinbotham,I Yaron,A Saha,P Reimer ,Jin Gao ,J Arrington,D Day,Z Ye,M Mihovilovič ,C Chen,C Boyd,A Daniel,A Rakhman,Y Qiang,J Zhang,R Lindgren,S Gilad,K Aniol,Vincenzo Bellini ,Z Ahmed,F Benmokhtar,Md Nuruzzaman ,A Kelleher,Zein‐Eddine Meziani ,Y W Zhang,B Zhao,D Meekins,R Gilman,V Sulkosky,B D Anderson ,D Wang,J Mammei,B Norum,A Glamazdin ,S Mey-Tal Beck ,M V Ivanov ,A Camsonne,N Sparveris,X Zheng,P Guèye,M Defurne,K Slifer,G Ron,X Qiu,J R M Annand ,W Deconinck,N Fomin,S Širca ,Larry Weinstein

doi:10.1103/physrevc.105.064003

Abstract

Experimental cross sections for the He4(e,e′p)X reactions in the missing energy range from 0.017 to 0.022 GeV and up to a missing momentum of 0.632 GeV/c at xB=1.24 and Q2=2 (GeV/c)2 are reported. The data are compared to relativistic distorted-wave impulse approximation calculations for the He4(e,e′p)H3 channel. Significantly more events are observed for pm≥0.45 GeV/c than are predicted by the theoretical model, and striking fluctuations in the ratio of data to the theoretical model around pm=0.3GeV/c are possible signals of initial-state multinucleon correlations.5 MoreReceived 11 May 2019Revised 13 March 2022Accepted 14 April 2022DOI:https://doi.org/10.1103/PhysRevC.105.064003©2022 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasBreakup reactionsFew-body systemsNucleon-nucleon interactionsPropertiesA ≤ 5Nuclear Physics

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