Phenomenology of nonperturbative charm in the nucleon

Hobbs, T. J.; Londergan, J. T.; Melnitchouk, W.

doi:10.1103/PhysRevD.89.074008

Title: Phenomenology of nonperturbative charm in the nucleon

Journal Article · Wed Apr 02 00:00:00 EDT 2014 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.89.074008· OSTI ID:1128676

Hobbs, T. J. ^[1]; Londergan, J. T. ^[1]; Melnitchouk, W. ^[2]

Indiana Univ., Bloomington, IN (United States)
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

We perform a comprehensive analysis of the role of nonperturbative (or intrinsic) charm in the nucleon, generated through Fock state expansions of the nucleon wave function involving five-quark virtual states represented by charmed mesons and baryons. We consider contributions from a variety of charmed meson-baryon states and find surprisingly dominant effects from the D¯^*0 Λ_c⁺ configuration. We pay particular attention to the existence and persistence of high-x structure for intrinsic charm, and the x dependence of the c-c¯ asymmetry predicted in meson-baryon models. We discuss how studies of charmed baryons and mesons in hadronic reactions can be used to constrain models, and outline future measurements that could further illuminate the intrinsic charm component of the nucleon.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-06OR23177

OSTI ID:: 1128676

Report Number(s):: JLAB-THY-13-1813; DOE/OR/23177-2857; arXiv:1311.1578; PRVDAQ; TRN: US1600826

Journal Information:: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 89, Issue 7; ISSN 1550-7998

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 55 works

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