Projectile Fragmentation of the Extremely Neutron-Rich Nucleus<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Li</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>11</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>at 0.79 GeV/nucleon

Kobayashi, Toshio; Yamakawa, Osamu; Omata, K.; Sugimoto, Katsuhisa; Shimoda, T.; Takahashi, N.; Tanihata, I.

doi:10.1103/physrevlett.60.2599

Cited by 354 publications

(227 citation statements)

References 13 publications

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“…that is analogous to (35) and where the momentum p As 3 or of the internal momentum of the participant particle p 3 . This is because θ p ′ 3 and p 3 are connected through the relation…”

Section: Quasielastic Scatteringmentioning

confidence: 99%

“…The W 's are the usual structure functions, and they are product of the momentum distribution n(p 3 ) and the corresponding response function R (3) . The five-differential cross section (38) is formally identical to the expressions given for instance in [33,36,37] for the (e, e ′ N ) cross section in PWIA assuming a residual nucleus in a bound state.…”

Section: Quasielastic Scatteringmentioning

confidence: 99%

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Electron scattering on two-neutron halo nuclei: The case of 6He

Garrido¹,

Guerra²

1999

Nuclear Physics A

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The formalism to describe electron scattering reactions on two-neutron halo nuclei is developed. The halo nucleus is described as a three-body system (core+n+n), and the wave function is obtained by solving the Faddeev equations in coordinate space. We discuss elastic and quasielastic scattering using the impulse approximation to describe the reaction mechanism. We apply the method to investigate the case of electron scattering on 6 He. Spectral functions, response functions, and differential cross sections are calculated for both neutron knockout and α knockout by the electron.PACS numbers: 25.30. Fj, 25.70.Bc, 21.45.+v

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“…that is analogous to (35) and where the momentum p As 3 or of the internal momentum of the participant particle p 3 . This is because θ p ′ 3 and p 3 are connected through the relation…”

Section: Quasielastic Scatteringmentioning

confidence: 99%

Section: Quasielastic Scatteringmentioning

confidence: 99%

Electron scattering on two-neutron halo nuclei: The case of 6He

Garrido¹,

Guerra²

1999

Nuclear Physics A

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“…Single-nucleon knockout reactions, either with [1][2][3][4] or without [5][6][7] coincident gamma-ray detection, have now been the subject of numerous systematic studies. In particular, since their first exploratory application to the phosphorus isotopes, in [1], single-nucleon knockout experiments with gamma-ray detection capability have been extensively tested and are being exploited to study the single-nucleon spectroscopy of exotic light [4,[8][9][10][11][12][13] and more medium-mass nuclei [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Correlated two-nucleon stripping reactions

et al. 2004

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The cross sections for the stripping of two correlated nucleons from light and medium-mass nuclei are considered. Such reactions are of interest both as a means for populating and identifying low-lying excited states of very exotic nuclear species and as a potential direct spectroscopic probe of two-nucleon correlations in such systems. A calculation scheme that combines the full shell model two-nucleon spectroscopic amplitudes with eikonal reaction theory is presented. The theoretical predictions of the method, and of more approximate schemes, are compared with new data on two-proton removal from 28 Mg. The combined full shell model structure amplitudes and reaction dynamics predictions are in good agreement with the available measurements. First indications of the sensitivity of the reaction mechanism to the spatial and angular momentum structure of the stripped two-nucleon wave functions are also discussed and clarified.

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“…Experiments determine the residue momentum component relative to a single direction. While early work on halo nuclei [11] looked at the component transverse to the beam direction, the distributions with respect to the parallel component are now preferred, these being less affected by (the principally transverse) Coulomb and diffractive scattering details within the reaction mechanisms. Henceforth we consider only the components in Eq.…”

mentioning

confidence: 99%

Two-Nucleon Knockout Spectroscopy at the Limits of Nuclear Stability

et al. 2009

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Sudden single-nucleon removal reactions from fast radioactive beams are now key to studies of the structure of rare isotopes. The sensitivity of the heavy residue's parallel momentum distribution to the orbital angular momentum of the removed nucleon is a crucial feature with a high spectroscopic value. Twonucleon removal reactions provide experimental reach toward the rarest nuclear species. We show that the residue parallel momentum distributions in these reactions offer a clear spectroscopic signal of the angular momentum of the pair of nucleons removed, and thus of the residue final state spins and spectroscopy. Our formalism is applied successfully to new final-state-inclusive measurements of like-nucleon pair removal reactions to states in neutron-rich 36 Mg and neutron-deficient 20 Mg. We also confront a new final-stateexclusive decomposition of two-proton knockout data to states in neutron-rich 26 Ne. DOI: 10.1103/PhysRevLett.102.132502 PACS numbers: 23.20.Lv, 21.60.Cs, 24.50.+g, 27.30.+t Intermediate-energy one-nucleon knockout reactions from rare-isotope beams are now key to our obtaining spectroscopic information on the dominant proton and neutron single-particle structures near the Fermi surfaces of short-lived isotopes far from the valley of stability [1,2]. The potency of the method, aside from its high experimental efficiency, is the combination of measurements of cross sections and their distribution with the parallel momentum of the projectilelike residues that derive information on the spectroscopic strength and orbital angular momentum of the removed nucleon, respectively. Analyses have been used to deduce quantitative singleparticle spectroscopy in many instances, e.g., [3][4][5][6], and contributed to our understanding of the evolution of shell structures in nuclei with the most extreme N:Z ratios. Recent examples include [7][8][9][10].We consider analogous two-nucleon removal reactions, events in which intermediate-energy, mass A projectiles undergo grazing collisions with a light nuclear target, resulting in the sudden removal of two like nucleons. The reactions of interest involve the removal of two protons from neutron-rich and two neutrons from neutron-deficient projectiles. In both cases the removed nucleons are strongly bound. We describe measurements where only the mass A À 2 projectile residues (denoted c) are detected. Ideally, the energy of the final states of the residues are also identified by measurement of their in-flight decay rays. Key to physical interpretation is that, in the sudden approximation, the sum,~1 þ~2, of the momenta of the removed nucleons in the projectile rest frame is probed by the laboratory momenta of the projectileK A and the residueK c measured in two-nucleon removal events,~1shown schematically in Fig. 1. Experiments determine the residue momentum component relative to a single direction. While early work on halo nuclei [11] looked at the component transverse to the beam direction, the distributions with respect to the parallel component are now pre...

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Projectile Fragmentation of the Extremely Neutron-Rich NucleusLi11at 0.79 GeV/nucleon

Cited by 354 publications

References 13 publications

Electron scattering on two-neutron halo nuclei: The case of 6He

Electron scattering on two-neutron halo nuclei: The case of 6He

Correlated two-nucleon stripping reactions

Two-Nucleon Knockout Spectroscopy at the Limits of Nuclear Stability

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