Role of the hadron molecule Λc (2940) in the p(p)over-bar → pD0(Λ)over-barc (2286) annihilation reaction

被引：30
|
作者：
Dong, Yubing [1 ,2 ]
Faessler, Amand [3 ]
Gutsche, Thomas [3 ]
Lyubovitskij, Valery E. [3 ,4 ,5 ]
机构：
[1] Inst High Energy Phys, Beijing 100049, Peoples R China
[2] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
[3] Univ Tubingen, Inst Theoret Phys, Kepler Ctr Astro & Particle Phys, D-72076 Tubingen, Germany
[4] Tomsk State Univ, Dept Phys, Tomsk 634050, Russia
[5] Tomsk Polytech Univ, Dept Math Phys, Tomsk 634050, Russia
来源：
PHYSICAL REVIEW D | 2014年 / 90卷 / 09期
关键词：
MESON-EXCHANGE MODEL; QUARK-MODEL; HEAVY BARYONS;
D O I：
10.1103/PhysRevD.90.094001
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The annihilation process p (p) over bar -> pD(0)(Lambda) over bar (c)(2286) is studied taking into account t-channel D-0, D*(0) meson exchange and the resonance contribution of Lambda(c)(2286) and Lambda(c)(2940) baryons. We assume that the Lambda(c)(2940) baryon is a pD*(0) molecular state with spin-parity 1/2(+) and 1/2(-). Our results show that near the threshold of p (p) over bar -> Lambda(c)(2286)(Lambda) over bar (c)(2286) the contribution from the intermediate state Lambda(c)(2940) is also sizeable and can be observed at the (P) over bar ANDA experiment. Another conclusion is that the spin-parity assignment 1/2(-) for Lambda(c)(2940) gives enhancement for the cross section in comparison with a choice 1/2(+).
引用
收藏
页数：6
相关论文
共 50 条
  • [1] Role of Y(4630) in the p(p)over-bar → Λc(Λ)over-barc reaction near threshold
    Wang, Yan-Yan
    Lu, Qi-Fang
    Wang, En
    Li, De-Min
    PHYSICAL REVIEW D, 2016, 94 (01)
  • [2] p(p)over-bar → Λc(Λ)over-barc within a Handbag Picture - Cross Section and Spin Observables
    Goritschnig, A. T.
    Kroll, P.
    Schweiger, W.
    SPIN PHYSICS, 2009, 1149 : 668 - +
  • [3] PRODUCTION OF c(c)over-bar AND c(c)over-barc(c)over-bar IN PROTON PROTON COLLISIONS
    Szczurek, Antoni
    Maciula, Rafal
    INTERNATIONAL SYMPOSIUM ON MULTIPARTICLE DYNAMICS, 2013, 6 (02): : 629 - 634
  • [4] B(C) AND B(B)OVER-BARC(C)OVER-BAR AT THE Z(0)-BOSON POLE
    KISELEV, VV
    LIKHODED, AK
    SHEVLYAGIN, MV
    ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1994, 63 (01): : 77 - 86
  • [5] Branching fractions for χcJ → p(p)over-barπ0, p(p)over-barη, and p(p)over-barω
    Onyisi, P. U. E.
    Rosner, J. L.
    Alexander, J. P.
    Cassel, D. G.
    Das, S.
    Ehrlich, R.
    Fields, L.
    Gibbons, L.
    Gray, S. W.
    Hartill, D. L.
    Heltsley, B. K.
    Hunt, J. M.
    Kreinick, D. L.
    Kuznetsov, V. E.
    Ledoux, J.
    Patterson, J. R.
    Peterson, D.
    Riley, D.
    Ryd, A.
    Sadoff, A. J.
    Shi, X.
    Sun, W. M.
    Yelton, J.
    Rubin, P.
    Lowrey, N.
    Mehrabyan, S.
    Selen, M.
    Wiss, J.
    Adams, S.
    Kornicer, M.
    Mitchell, R. E.
    Shepherd, M. R.
    Tarbert, C. M.
    Besson, D.
    Pedlar, T. K.
    Xavier, J.
    Cronin-Hennessy, D.
    Hietala, J.
    Zweber, P.
    Dobbs, S.
    Metreveli, Z.
    Seth, K. K.
    Xiao, T.
    Tomaradze, A.
    Brisbane, S.
    Libby, J.
    Martin, L.
    Powell, A.
    Spradlin, P.
    Wilkinson, G.
    PHYSICAL REVIEW D, 2010, 82 (01):
  • [6] p(p)over-bar annihilation into pi(+)pi(-)pi(0) in a hadron-exchange model
    Betz, M
    Veit, EA
    Mull, V
    Holinde, K
    PHYSICS LETTERS B, 1997, 398 (1-2) : 12 - 17
  • [7] (B)over-barc →ηc,(B)over-barc → J/ψ and (B)over-bar→ D(*) semileptonic decays including new physics
    Penalva, Neus
    Hernandez, Eliecer
    Nieves, Juan
    PHYSICAL REVIEW D, 2020, 102 (09)
  • [8] Measurements of the decays B0→ (D)over-bar0 p(p)over-bar, B0 → (D)over-bar*0 p(p)over-bar, B0 → D- p(p)over-barπ+, and B0 → D*- p(p)over-barπ+
    Aubert, B.
    Barate, R.
    Bona, M.
    Boutigny, D.
    Couderc, F.
    Karyotakis, Y.
    Lees, J. P.
    Poireau, V.
    Tisserand, V.
    Zghiche, A.
    Grauges, E.
    Palano, A.
    Pappagallo, M.
    Chen, J. C.
    Qi, N. D.
    Rong, G.
    Wang, P.
    Zhu, Y. S.
    Eigen, G.
    Ofte, I.
    Stugu, B.
    Abrams, G. S.
    Battaglia, M.
    Brown, D. N.
    Button-Shafer, J.
    Cahn, R. N.
    Charles, E.
    Day, C. T.
    Gill, M. S.
    Groysman, Y.
    Jacobsen, R. G.
    Kadyk, J. A.
    Kerth, L. T.
    Kolomensky, Yu. G.
    Kukartsev, G.
    Lynch, G.
    Mir, L. M.
    Oddone, P. J.
    Orimoto, T. J.
    Pripstein, M.
    Roe, N. A.
    Ronan, M. T.
    Wenzel, W. A.
    Barrett, M.
    Ford, K. E.
    Harrison, T. J.
    Hart, A. J.
    Hawkes, C. M.
    Morgan, S. E.
    Watson, A. T.
    PHYSICAL REVIEW D, 2006, 74 (05)
  • [9] Study of the charmed baryonic decays (B)over-bar0→Σc++ (p)over-barπ- and (B)over-bar→Σ0c(p)over-barπ+
    Park, K. S.
    Kichimi, H.
    Abe, K.
    Abe, K.
    Adachi, I.
    Aihara, H.
    Anipko, D.
    Arinstein, K.
    Aulchenko, V.
    Aushev, T.
    Banerjee, S.
    Barberio, E.
    Barbero, M.
    Bedny, I.
    Belous, K.
    Bitenc, U.
    Bondar, A.
    Bozek, A.
    Bracko, M.
    Browder, T. E.
    Chao, Y.
    Chen, A.
    Chen, W. T.
    Cheon, B. G.
    Chistov, R.
    Choi, Y.
    Choi, Y. K.
    Cole, S.
    Dalseno, J.
    Dash, M.
    Drutskoy, A.
    Eidelman, S.
    Epifanov, D.
    Fratina, S.
    Gabyshev, N.
    Gershon, T.
    Go, A.
    Gokhroo, G.
    Goldenzweig, P.
    Golob, B.
    Ha, H.
    Haba, J.
    Hayasaka, K.
    Hayashii, H.
    Hazumi, M.
    Heffernan, D.
    Hoshi, Y.
    Hou, S.
    Iijima, T.
    Inami, K.
    PHYSICAL REVIEW D, 2007, 75 (01):
  • [10] An alternative fit to Belle mass spectra for D(D)over-bar, D*(D)over-bar* and ΛC(Λ)over-barC
    Bugg, D. V.
    JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2009, 36 (07)
12345