The decay of N∗ (1895) to light hyperon resonances


  • Kanchan Pradeepkumar Khemchandani Universidade Federal de São Paulo
  • A. Martínez Torres Universidade de Sao Paulo
  • S.-H. Kim Pukyong National University
  • S.-il Nam Pukyong National University
  • H. Nagahiro Nara Women’s University
  • A. Hosaka Osaka University



Nucleon resonances, hyperons, decay process


In this talk I review the findings of our recent works where we have studied the decay of N ∗ (1895) and the implications of such properties on the photoproduction of light hyperons. I discuss that meson-baryon interactions play an essential role in describing the nature of N ∗ (1895) and report the details of our investigation of its decays to different meson-baryon systems and to final states involving Λ(1405) and a proposed Σ(1400). We find that the width of N ∗ (1895) gets important contributions from the decay to light hyperon resonances. Such an information can be used to look for alternative processes to study N ∗ (1895) in experimental data.


M. Tanabashi et al. [ParticleDataGroup], “Review of Particle Physics”, Phys. Rev. D 98 (2018) 030001.

T. Mart and C. Bennhold, “Evidence for a missing nucleon resonance in kaon photoproduction”, Phys. Rev. C 61 (2000) 012201.

S. Capstick and W. Roberts, “Quasi two-body decays of nonstrange baryons”, Phys. Rev. D 49 (1994) 4570-4586.

A. V. Anisovich, R. Beck, E. Klempt, V. A. Nikonov, A. V. Sarantsev and U. Thoma, “Properties of baryon resonances from a multichannel partial wave analysis”, Eur. Phys. J. A 48 (2012) 15.

T. Mart, “Coupled K+Λ and K0Λ photoproduction off the nucleon: Consequences from the recent CLAS and MAMI data and the N(1680)P11 narrow state”, Phys. Rev. D 100 (2019) 056008.

T. Mart and M. J. Kholili, “Origin of the second peak in the cross section of the K+Λ photoproduction”, Phys. Rev. C 86 (2012) 022201.

A. Martinez Torres, K. P. Khemchandani, U. G. Meissner and E. Oset, “Searching for signatures around 1920- MeV of a N* state of three hadron nature”, Eur. Phys. J. A 41 (2009) 361-368.

A. V. Anisovich et al. [CLAS], “Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states”, Phys. Lett. B 771 (2017) 142-150.

K. Khemchandani, A. Martínez Torres and J. Oller, “Hyperon resonances coupled to pseudoscalar- and vector-baryon channels”, Phys. Rev. C 100 (2019) 015208.

J. A. Oller and U. G. Meißner, “Chiral dynamics in the presence of bound states: Kaon nucleon interactions revisited”, Phys. Lett. B 500 (2001) 263.

Zhi-Hui Guo and J. A. Oller, “Meson-baryon reactions with strangeness -1 within a chiral framework”, Phys. Rev. C. 87 (2013) 035202.

J. J. Wu, S. Dulat and B. S. Zou, “Evidence for a new Sigma* resonance with J**P = 1/2- in the old data of K- p → Lambda pi+ pi- reaction”, Phys. Rev. D 80 (2009) 017503 .

J. J. Wu, S. Dulat and B. S. Zou, “Further evidence for the Sigma* resonance with J**P = 1/2- around 1380-MeV”, Phys. Rev. C 81 (2010) 045210. PhysRevC.81.045210. 14. P. Gao, J. J. Wu and B. S. Zou, “Possible Σ( 1 2 − ) under the Σ ∗ (1385) peak in KΣ ∗ photoproduction”, Phys. Rev. C 81 (2010) 055203.

J. J. Xie, J. J. Wu and B. S. Zou, “Role of the possible Σ ∗ ( 1 2 − ) state in the Λp → Λpπ0 reaction”, Phys. Rev. C 90 (2014) 055204.

J. J. Xie and L. S. Geng, “Σ ∗ 1/2− (1380) in the Λ + c → ηπ+Λ decay”, Phys. Rev. D 95 (2017) 074024.

L. Roca and E. Oset, “Isospin 0 and 1 resonances from πΣ photoproduction data”, Phys. Rev. C 88 (2013) 055206.

S. Kim, S. Nam, D. Jido and H. Kim, “Photoproduction of Λ(1405) with the N ∗ and t-channel Regge contributions”, Phys. Rev. D 96 (2017) 014003.

K. Khemchandani, A. Martínez Torres, H. Nagahiro and A. Hosaka, “Role of vector and pseudoscalar mesons in understanding 1/2 −N ∗ and ? resonances”, Phys. Rev. D 88 (2013) 114016.

H. Noumi, “Strange and Charm Hadron Physics at J-PARC in Future”, JPS Conf. Proc. 17 (2017)111003.

N. Isgur and G. Karl, “P Wave Baryons in the Quark Model”, Phys. Rev. D 18 (1978) 4187.

R. Bijker, F. Iachello and A. Leviatan, “Algebraic models of hadron structure. 1. Nonstrange baryons”, Annals Phys. 236 (1994) 69-116.

A. Hosaka, H. Toki and M. Takayama, “Baryon spectra in deformed oscillator quark model”, Mod. Phys. Lett. A 13 (1998) 1699-1708.

M. Takayama, H. Toki and A. Hosaka, “Systematics of the SU(3) baryon spectra and deformed oscillator quark model”, Prog. Theor. Phys. 101 (1999) 1271-1283.

M. Mai, “Review of the Λ(1405) A curious case of a strangeness resonance”, Eur. Phys. J. ST 230 (2021) 1593-1607.

E. Oset and A. Ramos, “Nonperturbative chiral approach to s wave anti-K N interactions”, Nucl. Phys. A 635 (1998) 99.

D. Jido, J. A. Oller, E. Oset, A. Ramos and U. G. Meißner, “Chiral dynamics of the two Lambda(1405) states”, Nucl. Phys. A 725 (2003) 181.

T. Hyodo and D. Jido, “The nature of the Lambda(1405) resonance in chiral dynamics”, Prog. Part. Nucl. Phys. 67 (2012) 55.

M. Mai and U. G. Meißner, “Constraints on the chiral unitary KN¯ amplitude from πΣK+ photoproduction data”, Eur. Phys. J. A 51 (2015) 30.

K. P. Khemchandani, A. Martinez Torres, H. Nagahiro, and A. Hosaka, “Decay properties of N ∗ (1895)”, Phys. Rev. D 103 (2021) 016015.

L. Roca, J. Palomar and E. Oset, “Decay of axial vector mesons into VP and P gamma”, Phys. Rev. D 70 (2004) 094006.

S. H. Kim, K. P. Khemchandani, A. Martinez Torres, S. i. Nam and A. Hosaka, “Photoproduction of Λ ∗ and Σ ∗ resonances with J P = 1/2 − off the proton”, Phys. Rev. D 103 (2021) 114017.

K. Moriya et al. (CLAS Collaboration), “Differential Photoproduction Cross Sections of the Phys. Rev. C 88 (2013) 045201; 88 (2013) 049902(E).




How to Cite

Khemchandani KP, Martínez Torres A, Kim S-H, Nam S- il, Nagahiro H, Hosaka A. The decay of N∗ (1895) to light hyperon resonances. Supl. Rev. Mex. Fis. [Internet]. 2022 Jun. 8 [cited 2022 Dec. 9];3(3):0308063 1-6. Available from: