QCD hidden-color hexadiquark in the core of nuclei

West, Jennifer Rittenhouse; Brodsky, Stanley J.; de Téramond, Guy F.; Goldhaber, Alfred S.; Schmidt, Iván

doi:10.1016/j.nuclphysa.2020.122134

QCD hidden-color hexadiquark in the core of nuclei

Journal Article · Wed Dec 30 00:00:00 EST 2020 · Nuclear Physics. A

DOI:https://doi.org/10.1016/j.nuclphysa.2020.122134· OSTI ID:1776787

^[1]; Brodsky, Stanley J. ^[2]; de Téramond, Guy F. ^[3]; Goldhaber, Alfred S. ^[4]; Schmidt, Iván ^[5]

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States). The EIC Center; SLAC National Accelerator Lab., Menlo Park, CA (United States)
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Univ. of Costa Rica, San Jose (Costa Rica). Lab. de Fisicia Teorica y Computacional
State Univ. of New York (SUNY), Stony Brook, NY (United States). C.N. Yang Inst. for Theoretical Physics
Universidad Tecnica Federico Santa Maria, Valparaiso (Chile)

Hidden-color configurations are a key prediction of QCD with important physical consequences. In this work we examine a QCD color-singlet configuration in nuclei formed by combining six scalar [ud] diquarks in a strongly bound SU (3)_C channel. The resulting hexadiquark state is a charge-2, spin-0, baryon number-4, isospin-0, color-singlet state. It contributes to alpha clustering in light nuclei and to the additional binding energy not saturated by ordinary nuclear forces in as well as the alpha-nuclei sequence of interest for nuclear astrophysics. We show that the strongly bound combination of six scalar isospin-0 [ud] diquarks within the nuclear wave function - relative to free nucleons - provides a natural explanation of the EMC effect measured by the CLAS collaboration's comparison of nuclear parton distribution function ratios for a large range of nuclei. Overall, these experiments confirmed that the EMC effect; i.e., the distortion of quark distributions within nuclei, is dominantly identified with the dynamics of neutron-proton (“isophobic”) short-range correlations within the nuclear wave function rather than proton-proton or neutron-neutron correlations.

View Accepted Manuscript (DOE)

Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: Fondecyt; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1776787

Alternate ID(s):: OSTI ID: 2325086

Journal Information:: Nuclear Physics. A, Journal Name: Nuclear Physics. A Vol. 1007; ISSN 0375-9474

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (21)

�ber den Bau der Atomkerne. I Heisenberg, W. Zeitschrift f�r Physik, Vol. 77, Issue 1-2 https://doi.org/10.1007/BF01342433	journal	January 1932
Group theory for unified model building Slansky, R. Physics Reports, Vol. 79, Issue 1 https://doi.org/10.1016/0370-1573(81)90092-2	journal	December 1981
The ratio of the nucleon structure functions F2N for iron and deuterium Aubert, J. J.; Bassompierre, G.; Becks, K. H. Physics Letters B, Vol. 123, Issue 3-4 https://doi.org/10.1016/0370-2693(83)90437-9	journal	March 1983
Quantum chromodynamics and other field theories on the light cone Brodsky, S. Physics Reports, Vol. 301, Issue 4-6 https://doi.org/10.1016/S0370-1573(97)00089-6	journal	August 1998
Essential elements for nuclear binding Lu, Bing-Nan; Li, Ning; Elhatisari, Serdar Physics Letters B, Vol. 797 https://doi.org/10.1016/j.physletb.2019.134863	journal	October 2019
Constraints on charm-anticharm asymmetry in the nucleon from lattice QCD Sufian, Raza Sabbir; Liu, Tianbo; Alexandru, Andrei Physics Letters B, Vol. 808 https://doi.org/10.1016/j.physletb.2020.135633	journal	September 2020
Light-front holographic QCD and emerging confinement Brodsky, Stanley J.; de Téramond, Guy F.; Dosch, Hans Günter Physics Reports, Vol. 584 https://doi.org/10.1016/j.physrep.2015.05.001	journal	July 2015
The pressure distribution inside the proton Burkert, V. D.; Elouadrhiri, L.; Girod, F. X. Nature, Vol. 557, Issue 7705 https://doi.org/10.1038/s41586-018-0060-z	journal	May 2018
Probing high-momentum protons and neutrons in neutron-rich nuclei No authors listed Nature, Vol. 560, Issue 7720, p. 617-621 https://doi.org/10.1038/s41586-018-0400-z	journal	August 2018
Modified structure of protons and neutrons in correlated pairs No authors listed Nature, Vol. 566, Issue 7744, p. 354-358 https://doi.org/10.1038/s41586-019-0925-9	journal	February 2019
Probing the core of the strong nuclear interaction Schmidt, A.; Pybus, J. R.; Weiss, R. Nature, Vol. 578, Issue 7796 https://doi.org/10.1038/s41586-020-2021-6	journal	February 2020
The EMC effect Norton, P. R. Reports on Progress in Physics, Vol. 66, Issue 8 https://doi.org/10.1088/0034-4885/66/8/201	journal	July 2003
Exposing novel quark and gluon effects in nuclei Cloët, I. C.; Dupré, R.; Riordan, S. Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 9 https://doi.org/10.1088/1361-6471/ab2731	journal	July 2019
On the Consequences of the Symmetry of the Nuclear Hamiltonian on the Spectroscopy of Nuclei Wigner, E. Physical Review, Vol. 51, Issue 2 https://doi.org/10.1103/PhysRev.51.106	journal	January 1937
Molecular Viewpoints in Nuclear Structure Wheeler, John Archibald Physical Review, Vol. 52, Issue 11 https://doi.org/10.1103/PhysRev.52.1083	journal	December 1937
Short Range Correlations and the EMC Effect Weinstein, L. B.; Piasetzky, E.; Higinbotham, D. W. Physical Review Letters, Vol. 106, Issue 5 https://doi.org/10.1103/PhysRevLett.106.052301	journal	February 2011
Quantum Chromodynamic Predictions for the Deuteron Form Factor Brodsky, Stanley J.; Ji, Chueng-Ryong; Lepage, G. P. Physical Review Letters, Vol. 51, Issue 2 https://doi.org/10.1103/PhysRevLett.51.83	journal	July 1983
Shadowing and antishadowing of nuclear structure functions Brodsky, Stanley J.; Lu, Hung Jung Physical Review Letters, Vol. 64, Issue 12 https://doi.org/10.1103/PhysRevLett.64.1342	journal	March 1990
Evidence for Strong Dominance of Proton-Neutron Correlations in Nuclei Piasetzky, E.; Sargsian, M.; Frankfurt, L. Physical Review Letters, Vol. 97, Issue 16 https://doi.org/10.1103/PhysRevLett.97.162504	journal	October 2006
Probing Cold Dense Nuclear Matter Subedi, R.; Shneor, R.; Monaghan, P. Science, Vol. 320, Issue 5882 https://doi.org/10.1126/science.1156675	journal	June 2008
The challenge of the EMC effect: Existing data and future directions Malace, Simona; Gaskell, David; Higinbotham, Douglas W. International Journal of Modern Physics E, Vol. 23, Issue 08 https://doi.org/10.1142/S0218301314300136	journal	August 2014

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