Oddball Y(4140) as the molecular cousin of Y(3930)

  • In my talk, we present the dynamical study of Y(4140) and Y(3930) under the Ds*Ds* and D*D* molecular assignments respectively. The importance to theoretically and experimentally study their open-charm decay, hidden-charm decay, radiative decay and double-photon decay is proposed combing with the theoretical calculation of the decay behavior of Y(4140) and Y(3930). According to the recent new experimental progress made by Belle, we further indicate the reasonability of molecular explanation to Y(4140). Another event cluster around 4270 MeV in the J/ψφ invariant mass spectrum of B→K J/ψφ can provide us more hints to reveal the creation mechanism of molecular structure in B meson decay, which will be helpful to clarify the underlying structure of Y(4140) and Y(3930).

  • [1] . Aaltonen T et al (CDF collaboration), Phys. Rev. Lett.2009, 102: 242002 [arXiv:0903.2229 [hep-ex]]2. Abe K et al (Belle collaboration), Phys. Rev. Lett. 2005,94: 182002 [arXiv:hep-ex/0408126]3. Aubert B et al (BABAR collaboration), Phys. Rev. Lett.2008, 101: 082001 [arXiv:0711.2047 [hep-ex]]4. LIU X, ZHU S L. Phys. Rev. D, 2009, 79: 094026[arXiv:0903.2529 [hep-ph]]5. LIU X, LUO Z G, LIU Y R, ZHU S L. Eur. Phys. J. C,2009, 61: 411-428 [arXiv:0808.0073 [hep-ph]]6. Mahajan N. Phys. Lett. B, 2009, 679: 228 [arXiv:0903.3107[hep-ph]]7. Branz T, Gutsche T, Lyubovitskij V E. Phys. Rev. D, 2009,80: 054019 [arXiv:0903.5424 [hep-ph]]8. Albuquerque R M, Bracco M E, Nielsen M. Phys. Lett. B,2009, 678: 186 [arXiv:0903.5540 [hep-ph]]9. DING G J. Eur. Phys. J. C, 2009, 64: 297 [arXiv:0904.1782[hep-ph]]10. ZHANG J R, HUANG M Q. arXiv:0905.4178 [hep-ph]11. LIU X. Phys. Lett. B, 2009, 680: 137 [arXiv:0904.0136[hep-ph]]12. LIU X, KE H W. Phys. Rev. D, 2009, 80: 034009 [arXiv:0907.1349 [hep-ph]]13. YUAN C Z. arXiv:0910.3138 [hep-ex]14. Pakhlova G, (Belle collaboration). talk given in The 5-thInternational Conference on Quarks and Nuclear Physics,Institue of High Energy Physics, Beijing, 21-26 September 200915. SHEN C P (Belle collaboration). talk given in InternationalWorkshop on e+e.. collisions from phi to psi (PHIPSI09),Institue of High Energy Physics, Beijing, China, 12-16 Oc-tober 200916. Uehara S et al (Belle collaboration). Phys. Rev. Lett. 2006,96: 082003 [arXiv:hep-ex/0512035]17. LIU X, LUO Z G, SUN Z F. arXiv:0911.3694 [hep-ph]18. YI K. arXiv:0906.4996 [hep-ex]
  • [1] . Aaltonen T et al (CDF collaboration), Phys. Rev. Lett.2009, 102: 242002 [arXiv:0903.2229 [hep-ex]]2. Abe K et al (Belle collaboration), Phys. Rev. Lett. 2005,94: 182002 [arXiv:hep-ex/0408126]3. Aubert B et al (BABAR collaboration), Phys. Rev. Lett.2008, 101: 082001 [arXiv:0711.2047 [hep-ex]]4. LIU X, ZHU S L. Phys. Rev. D, 2009, 79: 094026[arXiv:0903.2529 [hep-ph]]5. LIU X, LUO Z G, LIU Y R, ZHU S L. Eur. Phys. J. C,2009, 61: 411-428 [arXiv:0808.0073 [hep-ph]]6. Mahajan N. Phys. Lett. B, 2009, 679: 228 [arXiv:0903.3107[hep-ph]]7. Branz T, Gutsche T, Lyubovitskij V E. Phys. Rev. D, 2009,80: 054019 [arXiv:0903.5424 [hep-ph]]8. Albuquerque R M, Bracco M E, Nielsen M. Phys. Lett. B,2009, 678: 186 [arXiv:0903.5540 [hep-ph]]9. DING G J. Eur. Phys. J. C, 2009, 64: 297 [arXiv:0904.1782[hep-ph]]10. ZHANG J R, HUANG M Q. arXiv:0905.4178 [hep-ph]11. LIU X. Phys. Lett. B, 2009, 680: 137 [arXiv:0904.0136[hep-ph]]12. LIU X, KE H W. Phys. Rev. D, 2009, 80: 034009 [arXiv:0907.1349 [hep-ph]]13. YUAN C Z. arXiv:0910.3138 [hep-ex]14. Pakhlova G, (Belle collaboration). talk given in The 5-thInternational Conference on Quarks and Nuclear Physics,Institue of High Energy Physics, Beijing, 21-26 September 200915. SHEN C P (Belle collaboration). talk given in InternationalWorkshop on e+e.. collisions from phi to psi (PHIPSI09),Institue of High Energy Physics, Beijing, China, 12-16 Oc-tober 200916. Uehara S et al (Belle collaboration). Phys. Rev. Lett. 2006,96: 082003 [arXiv:hep-ex/0512035]17. LIU X, LUO Z G, SUN Z F. arXiv:0911.3694 [hep-ph]18. YI K. arXiv:0906.4996 [hep-ex]
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1. Hernández-Pinto, R.J., Gutiérrez-Guerrero, L.X., Bedolla, M.A. et al. Electric, magnetic, and quadrupole form factors and charge radii of vector mesons: From light to heavy sectors in a contact interaction[J]. Physical Review D, 2024, 110(11): 114015. doi: 10.1103/PhysRevD.110.114015
2. Rojas, A., Toledo, G. ρ meson magnetic dipole moment from B a B ar e+e- →π+π-π0π0 cross section measurement[J]. Physical Review D, 2024, 110(5): 056037. doi: 10.1103/PhysRevD.110.056037
3. Xu, Y.-Z.. The electromagnetic form factors of heavy-light pseudo-scalar and vector mesons[J]. Journal of High Energy Physics, 2024, 2024(7): 118. doi: 10.1007/JHEP07(2024)118
4. Xu, Y.-Z., Segovia, J. An Assessment of Pseudoscalar and Vector Meson Electromagnetic Form Factors[J]. Few-Body Systems, 2023, 64(3): 62. doi: 10.1007/s00601-023-01845-6
5. Dubnička, S., Dubničková, A.Z., Ivanov, M.A. et al. B Meson Decays in the Covariant Confined Quark Model[J]. Symmetry, 2023, 15(8): 1542. doi: 10.3390/sym15081542
6. Wang, F.-L., Luo, S.-Q., Liu, X. Radiative decays and magnetic moments of the predicted Bc -like molecules[J]. Physical Review D, 2023, 107(11): 114017. doi: 10.1103/PhysRevD.107.114017
7. Meng, L., Wang, B., Wang, G.-J. et al. Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules[J]. Physics Reports, 2023. doi: 10.1016/j.physrep.2023.04.003
8. Gandhi, K., Patel, V., Pincha, S. et al. Magnetic Moments and the Decay Properties of the D and Ds Mesons[J]. Springer Proceedings in Physics, 2021. doi: 10.1007/978-981-33-4408-2_20
9. Yang, B., Wang, B., Meng, L. et al. Isospin violating decay Ds∗ →dsπ0 in chiral perturbation theory[J]. Physical Review D, 2020, 101(5): 054019. doi: 10.1103/PhysRevD.101.054019
10. Aliev, T.M., Bilmis, S., Savci, M. Multipole moments of heavy vector and axial-vector mesons in QCD[J]. Physical Review D, 2020, 101(5): 054009. doi: 10.1103/PhysRevD.101.054009
11. Krutov, A.F., Troitsky, V.E. Quadrupole moments of the ρ meson and the S -wave deuteron and some general constraints on quadrupole moments of spin-1 systems[J]. Physical Review D, 2019, 99(1): 014036. doi: 10.1103/PhysRevD.99.014036
12. Krutov, A.F., Polezhaev, R.G., Troitsky, V.E. Magnetic moment of the ρ meson in instant-form relativistic quantum mechanics[J]. Physical Review D, 2018, 97(3): 033007. doi: 10.1103/PhysRevD.97.033007
13. Šimonis, V.. Magnetic properties of ground-state mesons[J]. European Physical Journal A, 2016, 52(4): 90. doi: 10.1140/epja/i2016-16090-5
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LIU Xiang. Oddball Y(4140) as the molecular cousin of Y(3930)[J]. Chinese Physics C, 2010, 34(9): 1405-1407. doi: 10.1088/1674-1137/34/9/055
LIU Xiang. Oddball Y(4140) as the molecular cousin of Y(3930)[J]. Chinese Physics C, 2010, 34(9): 1405-1407.  doi: 10.1088/1674-1137/34/9/055 shu
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Received: 2010-02-09
Revised: 1900-01-01
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Oddball Y(4140) as the molecular cousin of Y(3930)

    Corresponding author: LIU Xiang,
  • 1 School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China2 Research Center for Hadron and CSR Physics, Lanzhou University & Institute of Modern Physics of CAS, Lanzhou 730000, China

Abstract: 

In my talk, we present the dynamical study of Y(4140) and Y(3930) under the Ds*Ds* and D*D* molecular assignments respectively. The importance to theoretically and experimentally study their open-charm decay, hidden-charm decay, radiative decay and double-photon decay is proposed combing with the theoretical calculation of the decay behavior of Y(4140) and Y(3930). According to the recent new experimental progress made by Belle, we further indicate the reasonability of molecular explanation to Y(4140). Another event cluster around 4270 MeV in the J/ψφ invariant mass spectrum of B→K J/ψφ can provide us more hints to reveal the creation mechanism of molecular structure in B meson decay, which will be helpful to clarify the underlying structure of Y(4140) and Y(3930).

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