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Research PapersNo Access

STUDY OF TWO-PROTON RADIOACTIVITY WITHIN THE RELATIVISTIC MEAN-FIELD PLUS BCS APPROACH

Corrections for this article
- ERRATUM: STUDY OF TWO-PROTON RADIOACTIVITY WITHIN THE RELATIVISTIC MEAN-FIELD PLUS BCS APPROACH

Department of Physics, University of Rajasthan, Jaipur-302004, India

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Department of Physics, Govt. Women Engineering College, Ajmer-305002, India

Corresponding author.

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https://doi.org/10.1142/S0218301312500760Cited by:36 (Source: Crossref)

Abstract

Inspired by recent experimental studies of two-proton radioactivity in the light-medium mass region, we have employed relativistic mean-field plus state-dependent BCS approach (RMF+BCS) to study the ground state properties of selected even-Z nuclei in the region 20 ≤ Z ≤ 40. It is found that the effective potential barrier provided by the Coulomb interaction and that due to centrifugal force may cause a long delay in the decay of some of the nuclei even with small negative proton separation energy. This may cause the existence of proton-rich nuclei beyond the proton drip-line. Nuclei ³⁸Ti, ⁴²Cr, ⁴⁵Fe, ⁴⁸Ni, ⁵⁵Zn, ⁶⁰Ge, ^{63, 64}Se, ⁶⁸Kr, ⁷²Sr and ⁷⁶Zr are found to be the potential candidates for exhibiting two-proton radioactivity in the region 20 ≤ Z ≤ 40. The reliability of these predictions is further strengthened by the agreement of the calculated results for the ground state properties such as binding energy, one- and two-proton separation energy, proton and neutron radii, and deformation with the available experimental data for the entire chain of the isotopes of the nuclei in the region 20 ≤ Z ≤ 40.

Keywords:

PACS: 23.50.+z, 21.10.-k, 21.10.Dr

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References

V. I. Goldansky, Nucl. Phys. 19, 482 (1960). Web of Science, Google Scholar
S. Hofmannet al., Z. Phys. A 305, 111 (1982). ADS, Google Scholar
B. Blank and M. J. G. Borge, Prog. Nucl. Part. Phys. 60, 403 (2008), DOI: 10.1016/j.ppnp.2007.12.001. Web of Science, ADS, Google Scholar
M. Pfutzneret al., Eur. Phys. J. A 14, 279 (2002). Web of Science, ADS, Google Scholar
J. Giovinazzoet al., Phys. Rev. Lett. 89, 102501 (2002), DOI: 10.1103/PhysRevLett.89.102501. Web of Science, Google Scholar
B. Blanket al., Phys. Rev. Lett. 94, 232501 (2005), DOI: 10.1103/PhysRevLett.94.232501. Web of Science, ADS, Google Scholar
P. Ascheret al., Phys. Rev. Lett. 107, 102502 (2011), DOI: 10.1103/PhysRevLett.107.102502. Web of Science, Google Scholar
C. Dossatet al., Phys. Rev. C 72, 054315 (2005), DOI: 10.1103/PhysRevC.72.054315. Web of Science, Google Scholar
M. Pomorskiet al., Phys. Rev. C 83, 061303 (2011), DOI: 10.1103/PhysRevC.83.061303. Web of Science, Google Scholar
E. Maglione, L. S. Ferreira and R. J. Liotta, Phys. Rev. Lett. 81, 538 (1998), DOI: 10.1103/PhysRevLett.81.538. Web of Science, ADS, Google Scholar
E. Maglione, L. S. Ferreira and R. J. Liotta, Phys. Rev. C 59, 589 (1999), DOI: 10.1103/PhysRevC.59.R589. Web of Science, ADS, Google Scholar
L. S. Ferreira and E. Maglione, Phys. Rev. C 61, 021304 (2000), DOI: 10.1103/PhysRevC.61.021304. Web of Science, Google Scholar
E. Maglione and L. S. Ferreira, Phys. Rev. C 61, 047307 (2000), DOI: 10.1103/PhysRevC.61.047307. Web of Science, Google Scholar
L. S. Ferreira and E. Maglione, Phys. Rev. Lett. 86, 1721 (2001), DOI: 10.1103/PhysRevLett.86.1721. Web of Science, ADS, Google Scholar
B. A. Brown, Phys. Rev. C 43, R1513 (1991), DOI: 10.1103/PhysRevC.43.R1513. Web of Science, ADS, Google Scholar
W. E. Ormand, Phys. Rev. C 53, 214 (1996), DOI: 10.1103/PhysRevC.53.214. Web of Science, ADS, Google Scholar
F. C. Barker, Phys. Rev. C 59, 535 (1999), DOI: 10.1103/PhysRevC.59.535. Web of Science, ADS, Google Scholar
F. C. Barker, Phys. Rev. C 63, 047303 (2001), DOI: 10.1103/PhysRevC.63.047303. Web of Science, Google Scholar
B. A. Brown and F. C. Barker, Phys. Rev. C 67, 041 (2003), DOI: 10.1103/PhysRevC.67.041304. Web of Science, Google Scholar
L. Grigorenkoet al., Phys. Rev. Lett. 85, 22 (2000), DOI: 10.1103/PhysRevLett.85.22. Web of Science, ADS, Google Scholar
L. Grigorenkoet al., Phys. Rev. C 64, 054002 (2001), DOI: 10.1103/PhysRevC.64.054002. Web of Science, Google Scholar
G. A. Lalazissis, D. Vretenar and P. Ring, Phys. Rev. C 60, 051302 (1999), DOI: 10.1103/PhysRevC.60.051302. Web of Science, Google Scholar
G. A. Lalazissis, D. Vretenar and P. Ring, Nucl. Phys. A 650, 133 (1999), DOI: 10.1016/S0375-9474(99)00121-9. Web of Science, ADS, Google Scholar
D. Vretenar, G. A. Lalazissis and P. Ring, Phys. Rev. Lett. 82, 4595 (1999), DOI: 10.1103/PhysRevLett.82.4595. Web of Science, ADS, Google Scholar
G. A. Lalazissis, D. Vretenar and P. Ring, Nucl. Phys. A 679, 481 (2001), DOI: 10.1016/S0375-9474(00)00375-4. Web of Science, ADS, Google Scholar
L. S. Geng, H. Toki and J. Meng, Prog. Theor. Phys. 112, 603 (2004), DOI: 10.1143/PTP.112.603. Web of Science, ADS, Google Scholar
J. D. Walecka, Ann. Phys. (N.Y.) 83, 491 (1974), DOI: 10.1016/0003-4916(74)90208-5. Web of Science, ADS, Google Scholar
J. Boguta and A. R. Bodmer, Nucl. Phys. A 292, 413 (1977), DOI: 10.1016/0375-9474(77)90626-1. Web of Science, ADS, Google Scholar
B. D. Serot and J. D. Walecka, Adv. Nucl. Phys. 16, 1 (1986). Web of Science, Google Scholar
P.-G. Reinhardet al., Z. Phys. A 323, 13 (1986). ADS, Google Scholar
H. L. Yadav, S. Sugimoto and H. Toki, Mod. Phys. Lett. A 17, 2523 (2002), DOI: 10.1142/S0217732302008393. Link, Web of Science, ADS, Google Scholar
H. L. Yadav, M. Kaushik and H. Toki, Int. J. Mod. Phys. E 13, 647 (2004), DOI: 10.1142/S0218301304002375. Link, ADS, Google Scholar
G. Saxenaet al., Mod. Phys. Lett. A 23, 2589 (2008), DOI: 10.1142/S0217732308029861. Link, Web of Science, ADS, Google Scholar
J. Menget al., Phys. Rev. C 65, 041302 (2002), DOI: 10.1103/PhysRevC.65.041302. Web of Science, Google Scholar
J. Meng, I. Tanihata and S. Yamaji, Phys. Lett. B 419, 1 (1998). Web of Science, ADS, Google Scholar
P. Ring, Prog. Part. Nucl. Phys. 37, 193 (1996), DOI: 10.1016/0146-6410(96)00054-3. Web of Science, ADS, Google Scholar
P.-G. Reinhard, Rep. Prog. Phys. 52, 439 (1989), DOI: 10.1088/0034-4885/52/4/002. Web of Science, ADS, Google Scholar
Y. Sugahara and H. Toki, Nucl. Phys. A 579, 557 (1994), DOI: 10.1016/0375-9474(94)90923-7. Web of Science, ADS, Google Scholar
L. S. Genget al., Nucl. Phys. A 730, 80 (2004), DOI: 10.1016/j.nuclphysa.2003.10.014. Web of Science, ADS, Google Scholar
P. Ring and P. Schuck , The Many-Body Problem ( Springer , Heidelberg , 1980 ) . Google Scholar
A. M. Lane , Nuclear Theory ( Benjamin , 1964 ) . Google Scholar
Y. K. Gambhir, P. Ring and A. Thimet, Ann. Phys. (N.Y.) 198, 132 (1990), DOI: 10.1016/0003-4916(90)90330-Q. Web of Science, ADS, Google Scholar
L. S. Genget al., Prog. Theor. Phys. 110, 921 (2003), DOI: 10.1143/PTP.110.921. Web of Science, ADS, Google Scholar
P. Ring, Y. K. Gambhir and G. A. Lalazissis, Comput. Phys. Commun. 105, 77 (1997), DOI: 10.1016/S0010-4655(97)00022-2. Web of Science, ADS, Google Scholar
L. S. Geng, H. Toki and J. Meng, Prog. Theor. Phys. 785 (2005), DOI: 10.1143/PTP.113.785. Google Scholar
G. Audi and A. H. Wapstra, Nucl. Phys. A 595, 409 (1995), DOI: 10.1016/0375-9474(95)00445-9. Web of Science, ADS, Google Scholar
M. M. Sharma, M. A. Nagarajan and P. Ring, Phys. Lett. B 312, 377 (1993). Web of Science, ADS, Google Scholar

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Vol. 21, No. 09

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History

Received 23 April 2012

Revised 13 July 2012

Accepted 1 August 2012

Published: 28 August 2012

Keywords