Quasifree (p, 2p) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength

L. Atar; S. Paschalis; C. Barbieri; C. A. Bertulani; P. Díaz Fernández; M. Holl; M. A. Najafi; V. Panin; H. Alvarez-Pol; T. Aumann; V. Avdeichikov; S. Beceiro-Novo; D. Bemmerer; J. Benlliure; J. M. Boillos; K. Boretzky; M. J.G. Borge; M. Caamaño; C. Caesar; E. Casarejos; W. Catford; J. Cederkall; M. Chartier; L. Chulkov; D. Cortina-Gil; E. Cravo; R. Crespo; I. Dillmann; Z. Elekes; J. Enders; O. Ershova; A. Estrade; F. Farinon; L. M. Fraile; M. Freer; D. Galaviz Redondo; H. Geissel; R. Gernhäuser; P. Golubev; K. Göbel; J. Hagdahl; T. Heftrich; M. Heil; M. Heine; A. Heinz; A. Henriques; A. Hufnagel; A. Ignatov; H. T. Johansson; A. Knyazev; R3B Collaboration

doi:10.1103/PhysRevLett.120.052501

Quasifree (p, 2p) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength

L. Atar, S. Paschalis, C. Barbieri, C. A. Bertulani, P. Díaz Fernández, M. Holl, M. A. Najafi, V. Panin, H. Alvarez-Pol, T. Aumann, V. Avdeichikov, S. Beceiro-Novo, D. Bemmerer, J. Benlliure, J. M. Boillos, K. Boretzky, M. J.G. Borge, M. Caamaño, C. Caesar, E. CasarejosW. Catford, J. Cederkall, M. Chartier, L. Chulkov, D. Cortina-Gil, E. Cravo, R. Crespo, I. Dillmann, Z. Elekes, J. Enders, O. Ershova, A. Estrade, F. Farinon, L. M. Fraile, M. Freer, D. Galaviz Redondo, H. Geissel, R. Gernhäuser, P. Golubev, K. Göbel, J. Hagdahl, T. Heftrich, M. Heil, M. Heine, A. Heinz, A. Henriques, A. Hufnagel, A. Ignatov, H. T. Johansson, A. Knyazev, R3B Collaboration

Research output: Contribution to journal › Article › peer-review

Abstract

Quasifree one-proton knockout reactions have been employed in inverse kinematics for a systematic study of the structure of stable and exotic oxygen isotopes at the R3B/LAND setup with incident beam energies in the range of 300-450 MeV/u. The oxygen isotopic chain offers a large variation of separation energies that allows for a quantitative understanding of single-particle strength with changing isospin asymmetry. Quasifree knockout reactions provide a complementary approach to intermediate-energy one-nucleon removal reactions. Inclusive cross sections for quasifree knockout reactions of the type OA(p,2p)NA-1 have been determined and compared to calculations based on the eikonal reaction theory. The reduction factors for the single-particle strength with respect to the independent-particle model were obtained and compared to state-of-the-art ab initio predictions. The results do not show any significant dependence on proton-neutron asymmetry.

Original language	English
Article number	052501
Journal	Physical Review Letters
Volume	120
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.120.052501
Publication status	Published - 2018 Jan 29

Subject classification (UKÄ)

Subatomic Physics

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10.1103/PhysRevLett.120.052501

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Atar, L., Paschalis, S., Barbieri, C., Bertulani, C. A., Díaz Fernández, P., Holl, M., Najafi, M. A., Panin, V., Alvarez-Pol, H., Aumann, T., Avdeichikov, V., Beceiro-Novo, S., Bemmerer, D., Benlliure, J., Boillos, J. M., Boretzky, K., Borge, M. J. G., Caamaño, M., Caesar, C., ... R3B Collaboration (2018). Quasifree (p, 2p) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength. Physical Review Letters, 120(5), Article 052501. https://doi.org/10.1103/PhysRevLett.120.052501

@article{613b71e425ef4711b80e2359dca8b2ad,

title = "Quasifree (p, 2p) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength",

abstract = "Quasifree one-proton knockout reactions have been employed in inverse kinematics for a systematic study of the structure of stable and exotic oxygen isotopes at the R3B/LAND setup with incident beam energies in the range of 300-450 MeV/u. The oxygen isotopic chain offers a large variation of separation energies that allows for a quantitative understanding of single-particle strength with changing isospin asymmetry. Quasifree knockout reactions provide a complementary approach to intermediate-energy one-nucleon removal reactions. Inclusive cross sections for quasifree knockout reactions of the type OA(p,2p)NA-1 have been determined and compared to calculations based on the eikonal reaction theory. The reduction factors for the single-particle strength with respect to the independent-particle model were obtained and compared to state-of-the-art ab initio predictions. The results do not show any significant dependence on proton-neutron asymmetry.",

author = "L. Atar and S. Paschalis and C. Barbieri and Bertulani, {C. A.} and {D{\'i}az Fern{\'a}ndez}, P. and M. Holl and Najafi, {M. A.} and V. Panin and H. Alvarez-Pol and T. Aumann and V. Avdeichikov and S. Beceiro-Novo and D. Bemmerer and J. Benlliure and Boillos, {J. M.} and K. Boretzky and Borge, {M. J.G.} and M. Caama{\~n}o and C. Caesar and E. Casarejos and W. Catford and J. Cederkall and M. Chartier and L. Chulkov and D. Cortina-Gil and E. Cravo and R. Crespo and I. Dillmann and Z. Elekes and J. Enders and O. Ershova and A. Estrade and F. Farinon and Fraile, {L. M.} and M. Freer and {Galaviz Redondo}, D. and H. Geissel and R. Gernh{\"a}user and P. Golubev and K. G{\"o}bel and J. Hagdahl and T. Heftrich and M. Heil and M. Heine and A. Heinz and A. Henriques and A. Hufnagel and A. Ignatov and Johansson, {H. T.} and A. Knyazev and {R3B Collaboration}",

year = "2018",

month = jan,

day = "29",

doi = "10.1103/PhysRevLett.120.052501",

language = "English",

volume = "120",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "5",

}

Atar, L, Paschalis, S, Barbieri, C, Bertulani, CA, Díaz Fernández, P, Holl, M, Najafi, MA, Panin, V, Alvarez-Pol, H, Aumann, T, Avdeichikov, V, Beceiro-Novo, S, Bemmerer, D, Benlliure, J, Boillos, JM, Boretzky, K, Borge, MJG, Caamaño, M, Caesar, C, Casarejos, E, Catford, W, Cederkall, J, Chartier, M, Chulkov, L, Cortina-Gil, D, Cravo, E, Crespo, R, Dillmann, I, Elekes, Z, Enders, J, Ershova, O, Estrade, A, Farinon, F, Fraile, LM, Freer, M, Galaviz Redondo, D, Geissel, H, Gernhäuser, R, Golubev, P, Göbel, K, Hagdahl, J, Heftrich, T, Heil, M, Heine, M, Heinz, A, Henriques, A, Hufnagel, A, Ignatov, A, Johansson, HT, Knyazev, A & R3B Collaboration 2018, 'Quasifree (p, 2p) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength', Physical Review Letters, vol. 120, no. 5, 052501. https://doi.org/10.1103/PhysRevLett.120.052501

TY - JOUR

T1 - Quasifree (p, 2p) Reactions on Oxygen Isotopes

T2 - Observation of Isospin Independence of the Reduced Single-Particle Strength

AU - Atar, L.

AU - Paschalis, S.

AU - Barbieri, C.

AU - Bertulani, C. A.

AU - Díaz Fernández, P.

AU - Holl, M.

AU - Najafi, M. A.

AU - Panin, V.

AU - Alvarez-Pol, H.

AU - Aumann, T.

AU - Avdeichikov, V.

AU - Beceiro-Novo, S.

AU - Bemmerer, D.

AU - Benlliure, J.

AU - Boillos, J. M.

AU - Boretzky, K.

AU - Borge, M. J.G.

AU - Caamaño, M.

AU - Caesar, C.

AU - Casarejos, E.

AU - Catford, W.

AU - Cederkall, J.

AU - Chartier, M.

AU - Chulkov, L.

AU - Cortina-Gil, D.

AU - Cravo, E.

AU - Crespo, R.

AU - Dillmann, I.

AU - Elekes, Z.

AU - Enders, J.

AU - Ershova, O.

AU - Estrade, A.

AU - Farinon, F.

AU - Fraile, L. M.

AU - Freer, M.

AU - Galaviz Redondo, D.

AU - Geissel, H.

AU - Gernhäuser, R.

AU - Golubev, P.

AU - Göbel, K.

AU - Hagdahl, J.

AU - Heftrich, T.

AU - Heil, M.

AU - Heine, M.

AU - Heinz, A.

AU - Henriques, A.

AU - Hufnagel, A.

AU - Ignatov, A.

AU - Johansson, H. T.

AU - Knyazev, A.

AU - R3B Collaboration

PY - 2018/1/29

Y1 - 2018/1/29

N2 - Quasifree one-proton knockout reactions have been employed in inverse kinematics for a systematic study of the structure of stable and exotic oxygen isotopes at the R3B/LAND setup with incident beam energies in the range of 300-450 MeV/u. The oxygen isotopic chain offers a large variation of separation energies that allows for a quantitative understanding of single-particle strength with changing isospin asymmetry. Quasifree knockout reactions provide a complementary approach to intermediate-energy one-nucleon removal reactions. Inclusive cross sections for quasifree knockout reactions of the type OA(p,2p)NA-1 have been determined and compared to calculations based on the eikonal reaction theory. The reduction factors for the single-particle strength with respect to the independent-particle model were obtained and compared to state-of-the-art ab initio predictions. The results do not show any significant dependence on proton-neutron asymmetry.

AB - Quasifree one-proton knockout reactions have been employed in inverse kinematics for a systematic study of the structure of stable and exotic oxygen isotopes at the R3B/LAND setup with incident beam energies in the range of 300-450 MeV/u. The oxygen isotopic chain offers a large variation of separation energies that allows for a quantitative understanding of single-particle strength with changing isospin asymmetry. Quasifree knockout reactions provide a complementary approach to intermediate-energy one-nucleon removal reactions. Inclusive cross sections for quasifree knockout reactions of the type OA(p,2p)NA-1 have been determined and compared to calculations based on the eikonal reaction theory. The reduction factors for the single-particle strength with respect to the independent-particle model were obtained and compared to state-of-the-art ab initio predictions. The results do not show any significant dependence on proton-neutron asymmetry.

U2 - 10.1103/PhysRevLett.120.052501

DO - 10.1103/PhysRevLett.120.052501

M3 - Article

C2 - 29481189

AN - SCOPUS:85041303967

SN - 0031-9007

VL - 120

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

M1 - 052501

ER -

Quasifree (p, 2p) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength

Abstract

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