Recent Submissions

  • Neutron Skins in Sn and Pb Nuclei 

    Khin Nyan Linn (Universities Research Journal, 2010)
    The Relativistic Mean Field (RMF) theory is applied to calculate the root mean square (rms) radii of the neutron and proton density distributions. The NL3 and NL-Z2 effective interactions are used in the mean field Lagrangian. ...
  • Mapping Neutron Drip Lines in Meson Field Theories 

    Khin Nyan Linn; Schramm, Stefan (Proceedings of International Conference on Recent Innovations in Nanoscience& Technology (ICRINT2018), 2018)
    The binding energy and axial deformation of medium-light nuclei and Ʌ hypernuclei are investigated within different relativistic meson field theories. In particular, the effect of including Ʌ hyperons in neutron-rich nuclei ...
  • Mapping Neutron and Proton Drip Lines 

    Khin Nyan Linn (Universities Research Journal, 2009)
    We investigate the position of the neutron and proton drip lines in the framework of the RMF theory with two different parameter sets (NL3 and ChiM). We study the nuclear structure property of all nuclei within the proton ...
  • Track Following of Ξ- Hyperons in Nuclear Emulsion for the E07 Experiment 

    Mishina, Akihiro; Endo, Yoko; Hoshino, Kaoru; Ito, Hiroki; Itonaga, Kazunori; Kinbara, Shinji; Kobayashi, Hidetaka; Myint Kyaw Soe; Khin Than Tint; Umehara, Kaori; Yoshida, Junya; Nakazawa, Kazuma (JPS Conference Proceedings, Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe, 2015)
    The E07 experiment is expected to provide knowledge of S=-2 systems with ten times more statistics than that of the past E373 experiment. To achieve this in a reasonable time, an automated track following system is very ...
  • Single Charged Particle Identification in Nuclear Emulsion using Multiple Coulomb Scattering Method 

    Khin Than Tint; Endo, Yoko; Hoshino, Kaoru; Ito, Hiroki; Itonaga, Kazunori; Kinbara, Shinji; Kobayashi, Hidetaka; Mishina, Akihiro; Myint Kyaw Soe; Yoshida, Junya; Nakazawa, Kazuma (JPS Conference Proceedings, Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe, 2015)
    Development of particle identification technique for single charged particles such as Ξ- hyperon, proton, K- and π- mesons is on-going by measuring multiple Coulomb scattering in nuclear emulsion. We generated several ...
  • Overall Scanning Method for the J-PARC E07 Experiment 

    Yoshida, Junya; Nakazawa, Kazuma; Khin Than Tint; Myint Kyaw Soe; Kinbara, Shinji; Mishina, Akihiro; Endo, Yoko; Itoh, Hiroki; Kobayashi, Hidetaka (JPS Conference Proceedings, Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe, 2015)
    A new scanning method named “Overall scanning” will be applied for J-PARC E07’s emulsion plates to collect alpha decays which are calibration sources for range-energy relation in emulsion, rapidly. We carried out an operation ...
  • Mass Production of Large-sized Nuclear Emulsion Plates for J-PARC E07 

    Ito, Hiroki; Endo, Yoko; Hoshino, Kaoru; Khin Than Tint; Kinbara, Shinji; Kobayashi, Hidetaka; Mishina, Akihiro; Myint Kyaw Soe; Xue, Yaling; Yoshida, Junya; Hai, Zhang Dong; Nakazawa, Kazuma (JPS Conference Proceedings, Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe, 2015)
    In the E07 experiment at J-PARC, we systematically study double strangeness (S = -2) systems on Λ-Λ and Ξ--N interaction via S = -2 nuclei such as double Λ hypernuclei and twin Λ hypernuclei with hybrid-emulsion method. ...
  • Isotope Identification in Nuclear Emulsion Plate 

    Kinbara, Shinji; Endo, Yoko; Ichikawa, Yuichi; Itoh, Hiroki; Aye Moh Moh Theint; Khin Than Tint; Kobayashi, Hidetaka; Myint Kyaw Soe; Mishina, Akihiro; Ueno, Hideki; Yoshida, Junya; Nakazawa, Kazuma (JPS Conference Proceedings, Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe, 2015)
    We carried out the E373 experiment at KEK and detected seven double-hypernuclear events. Only the NAGARA event was uniquely identified as a  He hypernucleus among them. For some events among the other six events, ...
  • Event Analysis in Nuclear Emulsion for the E07 Experiment at J-PARC 

    Myint Kyaw Soe; Endo, Yoko; Hoshino, Kaoru; Ito, Hiroki; Itonaga, Kazunori; Kobayashi, Hidetaka; Khin Than Tint; Kinbara, Shinji; Mishina, Akihiro; Yoshida, Junya; Nakazawa, Kazuma (JPS Conference Proceedings, Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe, 2015)
    Hammer track events in nuclear emulsion were analyzed to measure the excitation energy of 8Be* (2+) nucleus. The kinetic energies of two alpha particles of hammer track events were obtained from their ranges with use of ...
  • Development of Automatic Alpha-Decay Track Measurement 

    Kobayashi, Hidetaka; Endo, Yoko; Itoh, Hiroki; Kinbara, Shinji; Khin Than Tint; Myint Kyaw Soe; Mishina, Akihiro; Yoshida, Junya; Nakazawa, Kazuma (JPS Conference Proceedings, Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe, 2015)
    In the emulsion analysis, alpha-rays with monochromatic energy which were emitted from natural radio isotope such as Thorium and Uranium series in the emulsion are used as calibration sources for range-energy relation. In ...
  • A new scanning system for alpha decay events as calibration sources for range-energy relation in nuclear emulsion 

    Yoshida, J.; Kinbara, S.; Mishina, A.; Nakazawa, K.; Myint Kyaw Soe; Aye Moh Moh Theint; Khin Than Tint (Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2017)
    A new scanning system named “Vertex picker” has been developed to rapid collect alpha decay events, which are calibration sources for the range-energy relation in nuclear emulsion. A computer-controlled optical microscope ...
  • Calculations of Stopping Power and Range of Alpha Particles for Several Energies in Nuclear Emulsion 

    Khin Than Tint; Yi Win (Mandalay University Research Journal, 2018)
    In this research, the stopping powers due to ionization and excitation for alpha particles moving not only in each element which are composed of nuclear emulsion, but also in nuclear emulsion for the kinetic energies ...
  • Trapping probability of strangeness via Xi− hyperon capture at rest in nuclear emulsion 

    Aye Moh Moh Theint; Ekawa, Hiroyuki; Kasagi, Ayumi; Kinbara, Shinji; May Sweet; Khin Than Tint; Yoon, Chun Sil; Yoshida, Junya; Yoshimoto, Masahiro; Nakazawa, Kazuma (Progress of Theoretical and Experimental Physics,021D01, 2019)
    In the E373 experiment at KEK-PS, we have located nearly 2 × 104 stopping events of Ξ− hyperon candidates in nuclear emulsion. Among these, the identification of the Ξ− hyperon was performed with the constant sagitta (CS) ...
  • The first evidence of a deeply bound state of Xi−–14N system 

    Nakazawa, K.; Endo, Y.; Fukunaga, S.; Hoshino, K.; Hwang, S. H.; Imai, K.; Ito, H.; Itonaga, K.; Kanda, T.; Kawasaki, M.; Kim, J. H.; Kinbara, S.; Kobayashi, H.; Mishina, A.; Ogawa, S.; Shibuya, H.; Sugimura, T.; Myint Kyaw Soe; Takahashi, H.; Takahashi, T.; Khin Than Tint; Umehara, K.; Yoon, C. S.; Yoshida, J. (Progress of Theoretical and Experimental Physics, 2015)
    We have observed a deeply bound state of the Ξ−–14N system that decayed into twin single-hypernuclei in nuclear emulsion exposed in the E373 experiment at KEK-PS. The process is uniquely identified as Ξ−+14N→10ΛBe+5ΛHe⁠. ...
  • The Alignment Method of The Emulsion Plates for Ξ-Hyperon Tracking on JPARC E07 

    Nakashima, Daisuke; Hoshino, Kaoru; Itonaga, Kazunori; Kobayashi, Hidetaka; Kinbara, Shinji; Nakazawa, Kazuma; Myint Kyaw Soe; Aye Moh Moh Theint; Khin Than Tint; Yoshida, Junya (Japanese Physical Society Conference Proceedings, Proceedings of the 12th International Conference on Hypernuclear and Strange Particle Physics, 2017)
    In the J-PARC E07 experiment, we will search for double Λ hypernuclei. Double Λ hypernuclei are produced via capture reaction of Ξ- hyperons in nuclear emulsion sheet. Tracks of Ξ- hyperons are followed with a newly developed ...
  • Study of double-strangeness nuclear systems with nuclear emulsion 

    Nakazawa, Kazuma; Endo, Yoko; Hoshino, Kaoru; Ito, Hiroki; Kinbara, Shinji; Kobayashi, Hidetaka; Mishina, Akihiro; Myint Kyaw Soe; Aye Moh Moh Theint; Xu, Rong; Khin Than Tint; Yoshida, Jun’ya; Zhang, Dong Hai (ELSEVIER, Physics Procedia 80, 26th International Conference on Nuclear Tracks in Solids, 26ICNTS, 2015)
    Double strangeness nuclei such as double-Λ and Ξ hypernuclei have been studied with nuclear emulsion due to its fine position resolution. Recently, we have started an experiment to study Λ-Λ interaction more accurately ...
  • Scanning systems for searching double strangeness nuclei in nuclear emulsion 

    Yoshida, Junya; Ito, Hiroki; Kinbara, Shinji; Kobayashi, Hidetaka; Nakashima, Daisuke; Nakazawa, Kazuma; Myint Kyaw Soe; Aye Moh Moh Theint; Khin Than Tint (Japanese Physical Society Conference Proceeding, Proceedings of the 12th International Conference on Hypernuclear and Strange Particle Physics, 2017)
    Scanning systems for detecting double Lambda hypernucler events in nuclear emulsion plates with high statistics are presented. The systems are complexes of optical microscopes and computers to provide fast emulsion scanning ...
  • Progress on the study of double- Λ hypernuclei 

    Nakazawa, Kazuma; Kinbara, Shinji; Mishina, Akihiro; Myint Kyaw Soe; Khin Than Tint; Yoshida, Junya (Journal of Physics: Conference Series, IOP Publishing, 2014)
    With use of nuclear emulsion, double-hypernuclei have been studied for aiming to understand Λ-Λ interaction via at-rest-capture of _ Ξ hyperon originated by quasi-free (K¯;K+) reactions, where the beam K ¯ momentum was ...
  • Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment 

    Ekawa, H.; Nakazawa, K.; Khin Than Tint, et.al (Progress of Theoretical and Experimental Physics, 2019)
    A double-Λ hypernucleus, ΛΛBe⁠, was observed by the J-PARC E07 Collaboration in nuclear emulsions tagged by the (⁠K−,K+⁠) reaction. This event was interpreted as the production and decay of 10ΛΛBe⁠, 11ΛΛBe⁠, or 12ΛΛBe∗ via ...
  • Emulsion scanning systems for double-strangeness nuclei 

    Yoshida, Junya; Kinbara, Shinji; Mishina, Akihiro; Nakazawa, Kazuma; Myint Kyaw Soe; Khin Than Tint; Aye Moh Moh Theint (Elsevier, Physics Procedia 80,62-64. 26th International Conference on Nuclear Tracks in Solids, 26ICNTS, 2015)
    Nuclear emulsion is so far the best detector to investigate double-strangeness nucleus including double Lambda hypernucleus, which is a nucleus made up of two lambda hyperons in addition to nucleons. Two types of scanning ...

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