Reseach Activities
(Elementary Particle Physics)

by Takayuki Matsuki

Workshop organizer

Publication List

Spectroscopy of Heavy-Light Mesons

Another agreement of our calculation with n=2; 1- and 0+ radial excitations of Ds mesons in 2006 of Babar and Belle experimental groups.
Agreement of our calculation with 0+ and 1+ states of B mesons in 2005 of D0 experimental group at Fermilab.
Recent discovery of DsJ mesons and 0+ and 1+ states of D mesons in 2003 are well reproduced by our potential model proposed in 1997 with T. Morii.
  1. Is Z+ a radially excited state of Ds?, (with T. Morii and K. Sudoh) Phys. Lett. B 669 (2008) 156-159, arXiv:0805.2442.
    (We actually meant to say that there will be no evidence of Z at Belle as reported by BaBar in ICHEP08)
  2. Construction of Lorentz Invariant Amplitudes from Rest Frame Wave Functions in HQET --- Application to Isgur-Wise Function ---, (with K. Seo) Prog. Theor. Phys. 118 (2007) 1087-1114, hep-ph/0703158.
  3. New Heavy-Light Mesons Qq-bar, (with T. Morii and K. Sudoh) Prog. Theor. Phys. Vol. 117 (2007) 1077-1098, hep-ph/0605019.
  4. Spectroscopy of Heavy Mesons Expanded in 1/mQ, (with T. Morii) Physical Review D56 (1997) pp.5646-5667.
  5. Radial Excitations of Heavy-Light Mesons, (with T. Morii and K. Sudoh) Eur. Phys. J. A 31 (4), pp. 701--704 (2007), hep-ph/0610186 (Talk presented at IVth International Conference on Quarks and Nuclear Physics (QNP06) held at Univ. of Complutense, Madrid in Spain June 5th-10th (2006)).
  6. Solution to Trouble of DsJ Particles, AIP Conference Proceedings, Vol. 814, p.533 (2005), "XI International Conference on Hadron Spectroscopy" (Hadron05), held at Rio De Janeiro, Brazil 21-26 Aug. 2005. (Talk) hep-ph/0510269 (2005)
  7. 0+ and 1+ States of B and Bs Mesons, (with K. Mawatari, T. Morii, and K. Sudoh) hep-ph/0411034 (2005), Phys. Lett. B606 (2005) pp.329-334.
  8. Talk given at "KEK Theory Meeting on Particle Physics Phenomenology", held at KEK, March 01-03 (2005).
  9. Spinor Operator Giving Both Angular Momentum and Parity, (with K. Mawatari, T. Morii, and K. Sudoh) hep-ph/0408326 (2004).

Lattice Gauge Theory

We find an appropriate definition of electromagnetic field strength in the pure SU(2) lattice.
  1. Model independent approach to studies of the confining dual Abrikosov vortex in $SU(2)$ lattice gauge theory (with R. Haymaker), hep-lat/0505019 (2005), Phys. Rev. D75, 014501 (2007).
  2. Consistency of lattice definitions of U(1) flux in Abelian projected SU(2) gauge theory (with R. Haymaker), hep-lat/0310017 (2003), Nucl. Phys. B 129-130, pp.641-643.
  3. Consistent Definitions of Flux and Electric and Magnetic Current in Abelian Projected SU(2) Lattice Gauge Theory (with R. Haymaker), hep-lat/0310025 (2003), Proceedings of Confinement 2003.

Publication in the Proceedings

  1. Decay Properties of the Heavy-Light Mesons, (with K. Seo), Proceedings of the YIQS Int17 Workshop on New Frontiers in QCD 2010, held at Yukawa Inst. for Theor. Phys., Kyoto Univ., Jan 18-March 19, Prog. Theor. Phys. Suppl. 186, 148-154 (2010).
  2. Derivation of 1/r2 potential term for QQ-bar in a potential model, (with L. Xiang, T. Morii, and K. Seo), Chinese Physics C, 34, pp.1482-1484, (2010).
  3. Viable semi-relativistic quark model of heavy-light systems, (with T. Morii and K. Sudoh) AIP Conference Proceedings, Vol. 1030, p.213 (2008), "Scalar Mesons and Related Topics" (Scadron70), held at IST, Lisbon, Portugal, Feb. 11-16 (2008).
  4. Structure of Mass Gap Between Two Spin Multiplets, (with T. Morii and K. Sudoh), FRASCATI PHYSICS SERIES Vol. XLVI, pp. 1055-1062, Proceedings of "XII International Conference on Hadron Spectroscopy" (Hadron07), held at Frascati, Italy, Oct. 8-13 (2007).
  5. Radial Excitations of Heavy-Light Mesons, (with T. Morii and K. Sudoh) Eur. Phys. J. A 31 (4), pp. 701--704 (2007), hep-ph/0610186 (Talk presented at IVth International Conference on Quarks and Nuclear Physics (QNP06) held at Univ. of Complutense, Madrid in Spain June 5th-10th (2006)).
  6. Mass Spectra of Charmed and Bottomed Mesons in 1/mQ, (with T. Morii and K. Sudoh, talk given by K. Sudoh) Yukawa International Seminar (YKIS2006), Prog. Theor. Phys. Suppl. 168, pp. 219--222 (2007), held at Kyoto, Japan 20-25 Nov. 2006.
  7. Solution to Trouble of DsJ Particles, AIP Conference Proceedings, Vol. 814, p.533 (2005), "XI International Conference on Hadron Spectroscopy" (Hadron05), held at Rio De Janeiro, Brazil 21-26 Aug. 2005. (Talk) hep-ph/0510269 (2005)
  8. Proceedings of Int'l Conference on "Color Confinement and Hadrons in Quantum Chromodynamics" (Lattice 2003), held at Tsukuba, Japan, July 15-19 (2003).
  9. Nucl. Phys. B (Proc. Suppl.) 129&130, 641 (2004), Proceedings of the "XXI Internationl Symposium on Lattice Field Theory" (Lattice 2003), held at Tsukuba, Japan, July 15-19 (2003).
  10. Dynamical sigma Particle in QCD, Soryuchiron Kenkyu, 102 No.5, p.219 (2001), Proceedings of Workshop at YITP, "Possible Existence of the sigma-meson and Its Implications to Hadron Physics", held at Kyoto, June 12-14 (2000).
  11. Gauge Symmetry Breakdown due to Dynamical versus Elementary Higgs, Soryuchiron Kenkyu, No.5, pp.E59-E61 (2000), Proceedings of Workshop at YITP, "Fundamental Problems of Quantum Field Theory and its Application", held at Kyoto, Dec 20-22 (2000).

Attendance to the Conferences

  1. "Vth International Conference on Quarks and Nuclear Physics (QNP09)", held at Inst. of High Energy Physics (IHEP) of Chinese Academy of Sciences, Beijing, China, Sept. 21-26 (2009).
  2. "Quark Confinement and the Hadron Spectrum" (Confinement8), held at U. of Gutenberg, Mainz, Germany, Sep. 1-6 (2008).
  3. "Challenge to New Exotic Hadrons", held at RCNP (Osaka Univ.), Japan, July 30-31 (2008).
  4. "Scalar Mesons and Related Topics" (Scadron70), held at IST, Lisbon, Portugal, Feb. 11-16 (2008).
  5. "XII International Conference on Hadron Spectroscopy" (Hadron07), held at Frascati, Italy, Oct. 8-13 (2007).
  6. "Challenge to New Exotic Hadrons with Heavy Quarks", held at RCNP (Osaka Univ.), Japan, July 7-8 (2007).
  7. "Sixth KEK Topical Conference: Frontiers in Particle Physics and Cosmology", held at KEK, Feb. 5-8, (2007).
  8. "IVth International Conference on Quarks and Nuclear Physics (QNP06)", held at Univ. of Complutense, Madrid in Spain, June 5th-10th (2006).
  9. "XI International Conference on Hadron Spectroscopy" (Hadron05), held at Rio De Janeiro, Brazil, Aug. 21-26 (2005).
  10. "International Workshop PENTAQURAK04", held at Spring-8, Japan, July 20-23 (2004).
  11. "XXI Internationl Symposium on Lattice Field Theory" (Lattice 2003), held at Tsukuba, Japan, July 15-19 (2003).
  12. "sigma-meson and Its Implications to Hadron Physics", held at Kyoto, June 12-14 (2000).

Visits to Other Institutes/Universities

  1. Prof. Xiang Liu at Lanzhou Univ., Aug. 11-18 (2010).
  2. Prof. R. Haymaker at Louisiana State Univ., Aug. 10 (2002)-March 18 (2003).