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Ground-state properties of 4He and 16O extrapolated from lattice QCD with pionless EFT

التفاصيل البيبلوغرافية
العنوان: Ground-state properties of 4He and 16O extrapolated from lattice QCD with pionless EFT
المؤلفون: L. Contessi, A. Lovato, F. Pederiva, A. Roggero, J. Kirscher, U. van Kolck
المصدر: Physics Letters B, Vol 772, Iss C, Pp 839-848 (2017)
بيانات النشر: Elsevier, 2017.
سنة النشر: 2017
المجموعة: LCC:Physics
مصطلحات موضوعية: Physics, QC1-999
الوصف: We extend the prediction range of Pionless Effective Field Theory with an analysis of the ground state of 16O in leading order. To renormalize the theory, we use as input both experimental data and lattice QCD predictions of nuclear observables, which probe the sensitivity of nuclei to increased quark masses. The nuclear many-body Schrödinger equation is solved with the Auxiliary Field Diffusion Monte Carlo method. For the first time in a nuclear quantum Monte Carlo calculation, a linear optimization procedure, which allows us to devise an accurate trial wave function with a large number of variational parameters, is adopted. The method yields a binding energy of 4He which is in good agreement with experiment at physical pion mass and with lattice calculations at larger pion masses. At leading order we do not find any evidence of a 16O state which is stable against breakup into four 4He, although higher-order terms could bind 16O.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 0370-2693
1873-2445
Relation: http://www.sciencedirect.com/science/article/pii/S0370269317306044; https://doaj.org/toc/0370-2693; https://doaj.org/toc/1873-2445
DOI: 10.1016/j.physletb.2017.07.048
URL الوصول: https://doaj.org/article/ab33b58243914891a246a08e4fb8d811
رقم الأكسشن: edsdoj.b33b58243914891a246a08e4fb8d811
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:03702693
18732445
DOI:10.1016/j.physletb.2017.07.048