Search for three-nucleon force effects in two-body photodisintegration of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">He</mml:mi><mml:mi mathvariant="normal" /><mml:mo>(</mml:mo></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">H</mml:mi><mml:mo>)</mml:mo></mml:math>and in the t

Skibiński, R.; Golak, J.; Kamada, H.; Witała, H.; Glöckle, W.; Nogga, A.

doi:10.1103/physrevc.67.054001

Cited by 35 publications

(10 citation statements)

References 56 publications

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“…[16] (solid curve) and Ref. [24] (dashed curve) at the incident photon energy of 12.8 MeV. The neutron energy bin width is 0.2 MeV.…”

Section: Resultsmentioning

confidence: 99%

“…Unfortunately, such calculations are not available; thus we compare the results of this work only with the calculations obtained based on the computational approach of Refs. [16,24].…”

Section: Introductionmentioning

confidence: 99%

“…For the case of 3 He, the relevant energy range is from the two-body breakup threshold (∼5.5 MeV) up to ∼40 MeV. According to the theoretical calculations [16,24], this energy region dominates the integrand of 3 He below the pion production threshold [33]. The calculations also show that the contribution from the threebody breakup channel to the GDH integral is larger than that from the two-body breakup.…”

Section: Introductionmentioning

confidence: 99%

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Spin-dependent cross sections from the three-body photodisintegration ofHe3at incident energies of 12.8 and 14.7 MeV

Laskaris¹,

Ye²,

Lalremruata³

et al. 2014

Phys. Rev. C

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The first measurement of the three-body photodisintegration of polarized 3 He using a circularly polarized photon beam has been performed at incident energies of 12.8 and 14.7 MeV. This measurement was carried out at the high-intensity γ -ray source located at Triangle Universities Nuclear Laboratory. A high-pressure 3 He target, polarized via spin exchange optical pumping with alkali metals, was used in the experiment. The spin-dependent double-and single-differential cross sections from 3 He( γ ,n)pp for laboratory angles varying from 30 • to 165 • are presented and compared with state-of-the-art three-body calculations. The data reveal the importance of including the Coulomb interaction between protons in the three-body calculations.Alt, Grassberger, and Sandhas (AGS) [15] equations. The calculations by Deltuva et al. [16] are based on the AGS equations and employ the coupled-channel extension of the charge-dependent Bonn (CD Bonn) nucleon-nucleon (NN) potential [17][18][19], including explicit excitation of a nucleon into a -isobar, called CD Bonn + -isobar [20]. In the three-nucleon (3N ) system the -isobar excitation yields effective 3N force and effective two-nucleon and 3N currents that are mutually consistent [16]. In addition to single-baryon and meson exchange electromagnetic currents, the relativistic single-nucleon charge corrections (RC) are taken into account [16]. The proton-proton Coulomb interaction is also included using the method of screening and renormalization [21]. The calculations by Skibiński et al. solve the Faddeev equations by using the Argonne V18 (AV18) NN potential [22] and the Urbana IX (UIX) 3N force [23], taking into account the single-nucleon currents and the two most important meson exchange currents, namely the seagull and pion-in-flight terms [24].In addition, Rozpȩdzik and collaborators [25] have carried out calculations of the three-body photodisintegration of 3 He using chiral effective field theory [26] (χ EFT) in the Faddeev framework including the well-known one-pion exchange contributions and the long-range two-pion exchange parts of meson exchange currents at next-to-leading-order derived with the method of unitary transformation [27]. The results are compared with the calculations obtained with the AV18 NN potential and the related exchange currents, and good agreement is found between the two theories [25]. However, the uncertainties of χ EFT are much larger compared

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“…[16] (solid curve) and Ref. [24] (dashed curve) at the incident photon energy of 12.8 MeV. The neutron energy bin width is 0.2 MeV.…”

Section: Resultsmentioning

confidence: 99%

“…Unfortunately, such calculations are not available; thus we compare the results of this work only with the calculations obtained based on the computational approach of Refs. [16,24].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Spin-dependent cross sections from the three-body photodisintegration ofHe3at incident energies of 12.8 and 14.7 MeV

Laskaris¹,

Ye²,

Lalremruata³

et al. 2014

Phys. Rev. C

Self Cite

View full text Add to dashboard Cite

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“…Their measurement and analysis are much Fig. 1 Schematic view of the detection system more difficult due to low cross section values, however, they are also fundamental to our understanding of the nuclear dynamics [10,11] and there are open questions concerning a mechanism of the bremsstrahlung process [12]. During the measurement the beam intensity was (1.3-1.4)×10 8 deuterons in the flat top.…”

Section: Methodsmentioning

confidence: 99%

Systematic Study of Three-Nucleon Systems Dynamics in the Cross Section of the Deuteron–Proton Breakup Reaction

et al. 2014

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An experiment to investigate the 1 H(d, pp)n breakup reaction using a deuteron beam of 340, 380 and 400 MeV and the WASA detector has been performed at the Cooler Synchrotron COSY-Jülich. The main goal was the detailed study of various aspects of few-nucleon dynamics in the medium energy region, with particular emphasis on relativistic effects and their interplay with three nucleon forces. These effects become more important with increasing available energy in the three nucleon system. Therefore the investigations at high energies are crucial to understand their nature. The almost 4π geometry of the WASA detector gives an unique possibility to study various aspects of dynamics of processes in the three-nucleon reaction. Preliminary results obtained using the WASA detector are presented.

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“…The present study is based on the formalism described in detail in [15,16,17,18,11], so here we display only the main steps. We work in the momentum space and use formalism of the Faddeev equations.…”

Section: Formalismmentioning

confidence: 99%

Study of the electroweak processes in the two and three-nucleon systems with local chiral forces

Skibiński¹,

Golak²,

Topolnicki³

et al. 2016

Proceedings of the 8th International Workshop on Chiral Dynamics — PoS(CD15)

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Deuteron photodisintegration, three-body photodisintegration of 3 He as well as muon capture on the deuteron and 3 He are theoretically analyzed by means of improved chiral nucleon-nucleon interactions. To this end we solve the Schrödinger and Faddeev equations in the momentum space. While our electromagnetic current operator implicitly receives implicitly many-body contributions via the Siegert theorem, the weak current is taken in the form of the nonrelativistic single nucleon current supplemented by the dominant relativistic corrections. Such models of the current operators and the wave functions generated with the new chiral potentials lead to reasonable predictions for the cross sections and capture rates studied in this contribution. Our results show very welcome features of the new forces and prove their usefulness in studies of electroweak processes with few nucleons.

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Search for three-nucleon force effects in two-body photodisintegration of3He(3H)and in the t

Cited by 35 publications

References 56 publications

Spin-dependent cross sections from the three-body photodisintegration ofHe3at incident energies of 12.8 and 14.7 MeV

Spin-dependent cross sections from the three-body photodisintegration ofHe3at incident energies of 12.8 and 14.7 MeV

Systematic Study of Three-Nucleon Systems Dynamics in the Cross Section of the Deuteron–Proton Breakup Reaction

Study of the electroweak processes in the two and three-nucleon systems with local chiral forces

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