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Pionless effective field theory in f...

Kirscher, Johannes.

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Pionless effective field theory in few-nucleon systems.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Pionless effective field theory in few-nucleon systems./
Author:	Kirscher, Johannes.
Description:	111 p.
Notes:	Source: Dissertation Abstracts International, Volume: 72-01, Section: B, page: .
Contained By:	Dissertation Abstracts International72-01B.
Subject:	Physics, Nuclear. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3428267
ISBN:	9781124346694

Pionless effective field theory in few-nucleon systems.
Kirscher, Johannes.

Pionless effective field theory in few-nucleon systems. - 111 p.

Source: Dissertation Abstracts International, Volume: 72-01, Section: B, page: .

Thesis (Ph.D.)--The George Washington University, 2012.

A systematic description of low-energy observables in light nuclei is presented. The effective field theory formalism without pions is extended to: (1) predictions with next-to-leading-order accuracy for the 4-helium binding energy B(alpha), the triton charge radius, and the 3-helium-neutron scattering length; (2) phase shifts for neutron-deuteron scattering and alpha-neutron low-energy scattering at leading order; (3) the ground states of the 5-helium (with and without Coulomb interaction) and 6-helium isotopes up to next-to-leading order; The convergence from leading- to next-to-leading order of the theory is demonstrated for correlations between: (1) the triton binding energy B(t) and the triton charge radius; (2) B(t) and the 4-helium binding energy B(alpha); Furthermore, a correlation between B(t) and the scattering length in the singlet S-wave channel of neutron-helium-3 scattering is discovered, and a model-independent estimate for the trinucleon binding energy splitting is provided. The results provide evidence for the usefulness of the applied power-counting scheme, treating next-to-leading-order interactions nonperturbatively and four-nucleon interactions as, at least, one order higher. The 5- and 6-helium ground states are analyzed with a power-counting scheme which includes the momentum-dependent next-to-leading order vertices perturbatively. All calculations include a full treatment of the Coulomb interaction. The assessment of numerical uncertainties associated with the solution of the few-body equation of motion through the Resonating Group Method parallels the report of the results for light nuclei in order to establish this method as practical for the analysis of systems with up to six particles interacting via short-range interactions.

ISBN: 9781124346694Subjects--Topical Terms:

1019065
Physics, Nuclear.

Pionless effective field theory in few-nucleon systems.
LDR:02926nam 2200337 4500 001 1397300
005 20110719084851.5
008 130515s2012 ||||||||||||||||| ||eng d
020 $a 9781124346694
035 $a (UMI)AAI3428267
035 $a AAI3428267
040 $a UMI $c UMI
100 1 $a Kirscher, Johannes. $3 1676122
245 1 0 $a Pionless effective field theory in few-nucleon systems.
300 $a 111 p.
500 $a Source: Dissertation Abstracts International, Volume: 72-01, Section: B, page: .
500 $a Adviser: Harald W. Griesshammer.
502 $a Thesis (Ph.D.)--The George Washington University, 2012.
520 $a A systematic description of low-energy observables in light nuclei is presented. The effective field theory formalism without pions is extended to: (1) predictions with next-to-leading-order accuracy for the 4-helium binding energy B(alpha), the triton charge radius, and the 3-helium-neutron scattering length; (2) phase shifts for neutron-deuteron scattering and alpha-neutron low-energy scattering at leading order; (3) the ground states of the 5-helium (with and without Coulomb interaction) and 6-helium isotopes up to next-to-leading order; The convergence from leading- to next-to-leading order of the theory is demonstrated for correlations between: (1) the triton binding energy B(t) and the triton charge radius; (2) B(t) and the 4-helium binding energy B(alpha); Furthermore, a correlation between B(t) and the scattering length in the singlet S-wave channel of neutron-helium-3 scattering is discovered, and a model-independent estimate for the trinucleon binding energy splitting is provided. The results provide evidence for the usefulness of the applied power-counting scheme, treating next-to-leading-order interactions nonperturbatively and four-nucleon interactions as, at least, one order higher. The 5- and 6-helium ground states are analyzed with a power-counting scheme which includes the momentum-dependent next-to-leading order vertices perturbatively. All calculations include a full treatment of the Coulomb interaction. The assessment of numerical uncertainties associated with the solution of the few-body equation of motion through the Resonating Group Method parallels the report of the results for light nuclei in order to establish this method as practical for the analysis of systems with up to six particles interacting via short-range interactions.
590 $a School code: 0075.
650 4 $a Physics, Nuclear. $3 1019065
650 4 $a Physics, Theory. $3 1019422
690 $a 0610
690 $a 0753
710 2 $a The George Washington University. $b Physics. $3 1266272
773 0 $t Dissertation Abstracts International $g 72-01B.
790 1 0 $a Griesshammer, Harald W., $e advisor
790 1 0 $a Alexandru, Andrei $e committee member
790 1 0 $a Bedaque, Paulo F. $e committee member
790 1 0 $a Feldman, Gerald $e committee member
790 1 0 $a Haberzettl, Helmut $e committee member
790 1 0 $a Opper, Allena $e committee member
790 $a 0075
791 $a Ph.D.
792 $a 2012
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3428267