Summary
From the first beginning the weak decay of Λ-hypernuclei has been considered a very interesting physics case, since its study could shed light on several topics in nuclear and particle physics, among which the ΛN → NN four-baryon weak interaction not otherwise accessible. However, only in the last decade a substantial series of reliable experimental data samples has been produced thanks to the synergic effort of dedicated facilities at some laboratories in the world. The existing pattern of data on lifetimes, partial decay widths for mesonic and non-mesonic decay (both one- and two-nucleon induced) and energy spectra and correlations of the emitted particles is reviewed and compared with existing theoretical predictions. Updated tables and plots summarizing the existing experimental information are presented. For each item a brief account of possible new experimental efforts, approved, planned or futuristic is given. From these analyses the full pattern of partial decay widths for 4ΛHe, 5ΛHe, 11ΛB and 12ΛC is discussed. Rare decay channels and polarization studies are also briefly analyzed.
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References
Rochester G. D. and Butler C. C., Nature, 160 (1947) 855.
Nambu Y., Nishijima K. and Yamaguchi Y., Prog. Theor. Phys., 6 (1951) 615.
Pais A., Phys. Rev., 86 (1952) 663.
Danysz M. and Pniewski J., Philos. Mag., 44 (1953) 348.
Gell-Mann M., Phys. Rev., 92 (1953) 833.
Hashimoto O. and Tamura T., Prog. Part. Nucl. Phys., 57 (2006) 564.
Millener D. J., Lect. Notes Phys., 724 (2007) 31.
Tamura H. et al., Nucl. Phys. A, 835 (2010) 3.
Cheston W. and Primakoff H., Phys. Rev., 92 (1953) 1537.
Cohen J., Prog. Part. Nucl. Phys., 25 (1990) 139.
Alberico W. M. and Garbarino G., Phys. Rep., 369 (2002) 1.
Alberico W. M. and Garbarino G., in Proceedings of the International School of Physics “Enrico Fermi”, Course CLVIII “Hadron Physics” edited by Bressani T., Wiedner U. and Filippi A. (IOS Press, Amsterdam; SIF, Bologna) 2005, p. 125.
Outa H., in Proceedings of the International School of Physics “Enrico Fermi”, Course CLVIII “Hadron Physics” edited by Bressani T., Wiedner U. and Filippi A. (IOS Press, Amsterdam; SIF, Bologna) 2005, p. 219.
Parreno A., Lect. Notes Phys., 724 (2007) 141.
Botta E., Bressani T. and Garbarino G., Eur. Phys. J. A, 48 (2012) 41.
Particle Data Group (Olive K. A. et al.), Chin. Phys. C., 30 (2014) 090001.
Alberico W. M., De Pace A., Ericson M. and Molinari A., Phys. Lett. B, 256 (1991) 134.
Bauer E. and Garbarino G., Nucl. Phys. A, 828 (2009) 29.
Bauer E. and Garbarino G., Phys. Rev. C, 81 (2010) 064315.
Bressani T., in Advances in Nuclear Physics and Related Areas, edited by Lalazzisis G. and Massen S. E. (Art of Text, Thessaloniki) 2005, p. 94.
Bressani T., in Proceedings of the International School of Physics “Enrico Fermi”, Course CLXVII “Strangeness and Spin in Fundamental Physics” edited by Anselmino M., Bressani T., Feliciello A. and Ratcliffe Ph. G. (SIF, Bologna and IOS Press, Amsterdam) 2008, p. 3.
Szymanski J. J. et al., Phys. Rev. C, 43 (1991) 849.
Parker J. D. et al., Phys. Rev. C, 76 (2007) 035501.
Fukuda T. et al., Nucl. Instrum. Methods A, 361 (1995) 485.
Hotchi H. et al., Phys. Rev. C, 64 (2001) 044302.
Sato Y. et al., Phys. Rev. C, 71 (2005) 025203.
Tamura H. et al., Prog. Theor. Phys. Suppl., 117 (1994) 1.
FINUDA Collaboration (Agnello M. et al.), Phys. Lett. B, 622 (2005) 35.
Feliciello A., Riv. Nuovo Cimento, 32 (2009) 147.
FINUDA Collaboration (Agnello M. et al.), Phys. Lett. B, 681 (2009) 139.
FINUDA Collaboration (Agnello M. et al.), Phys. Lett. B, 701 (2011) 556.
FINUDA Collaboration (Agnello M. et al.), Phys. Lett. B, 738 (2014) 499.
FINUDA Collaboration (Agnello M. et al.), Phys. Rev. Lett., 94 (2005) 212303.
FINUDA Collaboration (Agnello M. et al.), Nucl. Phys. A, 775 (2006) 35.
FINUDA Collaboration (Agnello M. et al.), Phys. Rev. Lett., 108 (2012) 042501.
Bhang H. et al., J. Kor. Phys. Soc., 59 (2011) 1461.
Juric M. et al., Nucl. Phys. B, 52 (1973) 1.
Prem R. J. and Steinberg P. H., Phys. Rev., 136 (1964) B1803.
Keyes G. et al., Phys. Rev. Lett., 20 (1968) 819.
Phillips R. E. and Schneps J., Phys. Rev., 180 (1969) 1307.
Bohm G. et al., Nucl. Phys. B, 16 (1970) 46.
Block M. M. et al., Proceedings of the Siena International Conference on Elementary Particles, 1963, edited by Bernardini G. and Puppi G. P. (Editrice Compositori, Bologna) 1963, p. 62.
Keyes G. et al., Phys. Rev. D, 1 (1970) 66.
Keyes G. et al., Nucl. Phys. B, 67 (1973) 269.
Avramenko S. et al., Nucl. Phys. A, 547 (1992) 95c.
Star Collaboration, Science, 328 (2010) 58.
Rappold C. et al., Nucl. Phys. A, 913 (2013) 170.
Rappold C. et al., Phys. Lett. B, 728 (2014) 543.
Zhu Y., Nucl. Phys. A, 904 (2013) 551c.
Tamura H. et al., Phys. Rev. C, 40 (1989) R479.
Crayton N. et al., Proceedings of the 11th International Conference on High Energy Physics, CERN (1962), p. 460.
Kang Y. W. et al., Phys. Rev., 139 (1965) B401.
Outa H. et al., Nucl. Phys. A, 547 (1992) 109c.
Outa H. et al., Nucl. Phys. A, 585 (1995) 109c.
Finuda Collaboration (Agnello M. et al. and Gal A.), Nucl. Phys. A, 881 (2012) 269.
Outa H. et al., Nucl. Phys. A, 639 (1998) 251c.
Kameoka S. et al., Nucl. Phys. A, 754 (2005) 173.
Grace R. et al., Phys. Rev. Lett., 55 (1985) 1055.
Bandō H., Yamada T. and Žofka J., Phys. Rev. C, 36 (1987) 1640.
Bhang H. C. et al., Nucl. Phys. A, 639 (1998) 269c.
Park H. et al., Phys. Rev. C, 61 (2000) 054004.
Nield K. J. et al., Phys. Rev. C, 13 (1976) 1263.
Noga V. I. et al., Sov. J. Nucl. Phys., 43 (1986) 856.
Armstrong T. A. et al., Phys. Rev. C, 47 (1993) 1957.
Cassing W. et al., Eur. Phys. J. A, 16 (2003) 549.
Metag V. et al., Nucl. Instrum. Methods, 114 (1974) 445.
Ramos A., Oset E. and Salcedo L. L., Phys. Rev. C, 50 (1994) 2314.
Itonaga K. et al., Nucl. Phys. A, 639 (1998) 329c.
Itonaga K. and Motoba T., Prog. Theor. Phys. Suppl., 185 (2010) 252.
Motoba T. and Itonaga K., Prog. Theor. Phys. Suppl., 117 (1994) 477.
Ajimura S. et al., J-PARC proposal, P22 (2006) http://j-parc.jp/researcher/Hadron/en/Proposale.html.
Dohrmann F. et al., Phys. Rev. Lett., 93 (2004) 242501.
Garibaldi F. et al., Nucl. Phys. A, 914 (2013) 34.
Nakamura S. N., EPJ Web of Conferences, 66 (2014) 01020.
Cotanch S. R. and Hsiao S. S., Nucl. Phys. A, 450 (1986) 419.
Lea R. for the Alice Collaboration, Nucl. Phys. A, 914 (2013) 415.
Alice Collaboration (J. Adamet al.), arXiv:1506.08453.
Alice Collaboration (Abelev B. et al.), J. Phys. G, 41 (2014) 087002.
Alice Collaboration (Abelev B. et al.), J. Phys. G, 41 (2014) 087001.
Ajimura S. et al., Nucl. Phys. A, 585 (1995) 173.
Sakaguchi A. et al., Phys. Rev. C, 43 (1991) 73.
Okada S. et al., Nucl. Phys. A, 754 (2005) 178.
Montwill A. et al., Nucl. Phys. A, 234 (1974) 413.
Noumi H. et al., Phys. Rev. C, 52 (1995) 2936.
Dalitz R. H., Phys. Rev., 112 (1958) 605.
Davis D. H., Nucl. Phys. A, 754 (2005) 3.
Bandō H. and Takaki H., Prog. Theor. Phys., 72 (1984) 106.
Bandō H. and Takaki H., Phys. Lett. B, 150 (1985) 409.
Oset E. and Salcedo L. L., Nucl. Phys. A, 443 (1985) 704.
Oset E. et al., Phys. Rep., 188 (1990) 79.
Motoba T., Itonaga K. and Bandō H., Nucl. Phys. A, 489 (1988) 683.
Motoba T., Bandō H., Fukuda T. and Žofka J., Nucl. Phys. A, 534 (1991) 597.
Bandō H., Motoba T. and Žofka J., in Perspectives of Meson Science edited by Yamazaki T. T., Nakai K. and Nagamine K. (North Holland, Amsterdam) 1992, p. 571.
Gal A., Nucl. Phys. A, 828 (2009) 72.
Motoba T., Nucl. Phys. A, 547 (1992) 115.
Kumagai-Fuse L., Okabe S. and Akaishi Y., Phys. Lett. B, 345 (1995) 386.
Hayano R. S. et al., Phys. Lett. B, 231 (1989) 355.
Outa H. et al., Prog. Theor. Phys. Suppl., 117 (1994) 177.
Nagae T. et al., Phys. Rev. Lett., 80 (1998) 1605.
Oset E. et al., Prog. Theor. Phys. Suppl., 117 (1994) 461.
Cohen D. and Kurath S., Nucl. Phys., 73 (1965) 1.
Cohen D. and Kurath S., Nucl. Phys. A, 101 (1967) 1.
Sasao J. et al., Phys. Lett. B, 579 (2004) 258.
Millener D. J., Nucl. Phys. A, 804 (2008) 84.
Ukai M. et al., Phys. Rev. C, 77 (2008) 054315.
Davis D. H. et al., Nucl. Phys., 41 (1963) 73.
Tang L. et al., Exp. Proposal, E-08-012 (Jefferson Lab.) 2007.
Tang L., Int. J. Mod. Phys. E, 19 (2010) 2638.
A1 Collaboration (Blomqvist K. I. et al.), Nucl. Instrum. Methods Phys. Res. A, 403 (1998) 263.
A1 Collaboration (Achenbach P. et al.), Eur. Phys. J. ST, 198 (2011) 307.
A1 Collaboration (Esser A. et al.), Phys. Rev. Lett., 114 (2015) 232501.
Hashimoto O. et al., Phys. Rev. Lett., 88 (2000) 042503.
Ramos A., Vicente-Vacas M. J. and Oset E., Phys. Rev. C, 55 (1997) 735.
Ramos A., Vicente-Vacas M. J. and Oset E., Phys. Rev. C, 66 (2002) 039903.
CERN Program Library Entry W5013, GEANT.
Kim J. H. et al., Phys. Rev. C, 68 (2003) 065201.
Okada S. et al., Phys. Lett. B, 597 (2004) 249.
Garbarino G., Parreno A. and Ramos A., Phys. Rev. C, 69 (2004) 054603.
Kang B. H. et al., Phys. Rev. Lett., 96 (2006) 062301.
Kim M. J. et al., Phys. Lett. B, 641 (2006) 28.
Bauer E., Garbarino G., Parreno A. and Ramos A., Nucl. Phys. A, 836 (2010) 199.
Kim M. et al., Phys. Rev. Lett., 103 (2009) 182502.
FINUDA Collaboration (Agnello M. et al.), Nucl. Phys. A, 804 (2008) 151.
FINUDA Collaboration (Agnello M. et al. and Garbarino G.), Phys. Lett. B, 685 (2010) 247.
Bufalino S., Nucl. Phys. A, 914 (2013) 160.
Block M. M. and Dalitz R. H., Phys. Rev. Lett., 11 (1963) 96.
Barclay Adams J., Phys. Rev., 156 (1967) 1611.
McKellar B. J. H. and Gibson B. F., Phys. Rev. C, 30 (1984) 322.
Dubach J. F., Nucl. Phys. A, 450 (1986) 71.
Parreno A., Ramos A. and Bennhold C., Phys. Rev. C, 56 (1997) 339.
Parreno A. and Ramos A., Phys. Rev. C, 65 (2002) 015204.
Jido D., Oset E. and Palomar J. E., Nucl. Phys. A, 694 (2001) 525.
Chumillas C., Garbarino G., Parreno A. and Ramos A., Phys. Lett. B, 657 (2007) 180.
Itonaga K., Ueda T. and Motoba T., Phys. Rev. C, 65 (2002) 034617.
Cheung C. Y., Heddle D. P. and Kisslinger L. S., Phys. Rev. C, 27 (1983) 335.
Heddle D. P. and Kisslinger L. S., Phys. Rev. C, 33 (1986) 608.
Inoue T., Oka M., Motoba T. and Itonaga K., Nucl. Phys. A, 633 (1998) 312.
Sasaki K., Inoue T. and Oka M., Nucl. Phys. A, 669 (2000) 331.
Sasaki K., Inoue T. and Oka M., Nucl. Phys. A, 678 (2000) 455.
Sasaki K., Izaki M. and Oka M., Phys. Rev. C, 71 (2005) 035502.
Schumacher R. A., Nucl. Phys. A, 547 (1992) 143.
Alberico W. M. and Garbarino G., Phys. Lett. B, 486 (2000) 362.
Bhang H. et al., Eur. Phys. J. A, 33 (2007) 259.
FINUDA Collaboration (Agnello M. et al.), Nucl. Phys. A, 881 (2012) 322.
Bhang H. et al., J-PARC proposal, P18 (2006) http://j-parc.jp/researcher/Hadron/en/Proposal_e.html.
Mayeur C. et al., Nuovo Cimento, 44 (1966) 698.
Bohm G. et al., Nucl. Phys. B, 9 (1969) 1.
Keyes G. et al., Nuovo Cimento A, 31 (1976) 401.
Dalitz R. H. and von Hippel F., Nuovo Cimento, 34 (1964) 799.
Cieply A. and Gal A., Phys. Rev. C, 55 (1997) 2715.
Gibson B. F. and Timmermans R., Nucl. Phys. A, 639 (1998) 341c.
Coremans G. et al., Nucl. Phys. B, 16 (1970) 209.
Rayet M., Nuovo Cimento B, 42 (1966) 238.
Thurnauer P. G., Nuovo Cimento, 26 (1962) 869.
FINUDA Collaboration (Agnello M. et al.), Nucl. Phys. A, 835 (2010) 439.
Botta E., Bressani T., Bufalino S. and Feliciello A., Phys. Lett. B, 748 (2015) 86.
Nagae T., Few-Body Sys., 54 (2013) 785.
Agari K. et al., Prog. Theor. Exp. Phys., 2012 (2012) 02B011.
Bandō H., Motoba T., Sotona M. and Žofka J., Phys. Rev. C, 39 (1989) 587.
Kishimoto T., Ejiri H. and Bandō H., Phys. Lett. B, 232 (1992) 24.
Ajimura S. et al., Phys. Lett. B, 282 (1992) 293.
Ajimura S. et al., Phys. Rev. Lett., 84 (2000) 4052.
Bandō H., Motoba T. and Žofka J., Int. J. Mod. Phys. A, 5 (1990) 4021.
Nabetani H., Ogaito T., Sato T. and Kishimoto T., Phys. Rev. C, 60 (1999) 017001.
Ajimura S. et al., Phys. Rev. Lett., 80 (1998) 3471.
Itonaga K., Motoba T., Richter O. and Sotona M., Phys. Rev. C, 49 (1994) 1045.
Motoba T. and Itonaga K., Nucl. Phys. A, 577 (1994) 293c.
Maruta T. et al., Nucl. Phys. A, 754 (2005) 168.
Maruta T. et al., Eur. Phys. J. A, 33 (2007) 255.
Itonaga K., Motoba T., Ueda T. and Rijken Th. A., Phys. Rev. C, 77 (2008) 044605.
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Botta, E., Bressani, T., Bufalino, S. et al. Status and perspectives of experimental studies on hypernuclear weak decays. Riv. Nuovo Cim. 38, 387–448 (2015). https://doi.org/10.1393/ncr/i2015-10116-x
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DOI: https://doi.org/10.1393/ncr/i2015-10116-x