Survival before annihilation in Ψ′ decays

被引：10

作者：

Artoisenet, P ^{[1
]}

Gérard, JM ^{[1
]}

Weyers, J ^{[1
]}

机构：

[1] Catholic Univ Louvain, Inst Phys Theor, B-1348 Louvain, Belgium

来源：

PHYSICS LETTERS B | 2005年 / 628卷 / 3-4期

关键词：

D O I：

10.1016/j.physletb.2005.09.041

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We extend the simple scenario for psi' decays suggested a few years ago. The cc pair in the psi' does not annihilate directly into three gluons but rather survives before annihilating. An interesting prediction is that a large fraction of all psi' decays could originate from the psi' -> eta(c)(3 pi) channel which we urge experimentalists to identify. Our model solves the problem of the apparent hadronic excess in psi' decays as well as the rho pi puzzle since, in our view, the two-body decays of the psi' are naturally of electromagnetic origin. Further tests of this picture are proposed, e.g., J/psi -> b (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：211 / 214

页数：4

共 13 条

[1] Measurement of the final states ωπ0, ρη, and ρη′ from ψ(2S) electromagnetic decays and e+e-annihilations -: art. no. 112007 [J].

Ablikim, M ;

Bai, JZ ;

Ban, Y ;

Bian, JG ;

Cai, X ;

Chang, JF ;

Chen, HF ;

Chen, HS ;

Chen, HX ;

Chen, JC ;

Chen, J ;

Chen, ML ;

Chen, YB ;

Chi, SP ;

Chu, YP ;

Cui, XZ ;

Dai, HL ;

Dai, YS ;

Deng, ZY ;

Dong, LY ;

Dong, QF ;

Du, SX ;

Du, ZZ ;

Fang, J ;

Fang, SS ;

Fu, CD ;

Fu, HY ;

Gao, CS ;

Gao, YN ;

Gong, MY ;

Gong, WX ;

Gu, SD ;

Guo, YN ;

Guo, YQ ;

Guo, ZJ ;

Harris, FA ;

He, KL ;

He, M ;

He, X ;

Heng, YK ;

Hu, HM ;

Hu, T ;

Huang, GS ;

Huang, XP ;

Huang, XT ;

Ji, XB ;

Jiang, CH ;

Jiang, XS ;

Jin, DP .

PHYSICAL REVIEW D, 2004, 70 (11) :112007-1

[2]

Ablikim M, 2004, PHYS REV D, V70, DOI [10.1103/PhysRevD.70.112003, 10.1103/PhysRevD.70.092003]

[3] Observation of the decay ψ (2S)→K*(892)(K)over-bar + c.c [J].

Ablikim, M ;

Bai, JZ ;

Ban, Y ;

Bian, JG ;

Cai, X ;

Chang, JF ;

Chen, HF ;

Chen, HS ;

Chen, HX ;

Chen, JC ;

Chen, J ;

Chen, F ;

Chen, ML ;

Chen, YB ;

Chi, SP ;

Chu, YP ;

Cui, XZ ;

Dai, HL ;

Dai, YS ;

Deng, ZY ;

Dong, LY ;

Du, SX ;

Du, ZZ ;

Fang, J ;

Fang, SS ;

Fu, CD ;

Fu, HY ;

Gao, CS ;

Gao, YN ;

Gong, MY ;

Gong, WX ;

Gu, SD ;

Guo, YN ;

Guo, YQ ;

Guo, ZJ ;

Harris, FA ;

He, KL ;

He, M ;

He, X ;

Heng, YK ;

Hu, HM ;

Hu, T ;

Huang, GS ;

Huang, L ;

Huang, XP ;

Ji, XB ;

Jia, QY ;

Jiang, CH ;

Jiang, XS ;

Jin, DP .

PHYSICS LETTERS B, 2005, 614 (1-2) :37-43

[4]

ABLIKIM M, HEPEX0408047, P46

[5] Branching fractions for ψ(2S)-to-J/ψ transitions -: art. no. 232002 [J].

Adam, NE ;

Alexander, JP ;

Berkelman, K ;

Cassel, DG ;

Crede, V ;

Duboscq, JE ;

Ecklund, KM ;

Ehrlich, R ;

Fields, L ;

Galik, RS ;

Gibbons, L ;

Gittelman, B ;

Gray, R ;

Gray, SW ;

Hartill, DL ;

Heltsley, BK ;

Hertz, D ;

Hsu, L ;

Jones, CD ;

Kandaswamy, J ;

Kreinick, DL ;

Kuznetsov, VE ;

Mahlke-Krüger, H ;

Meyer, TO ;

Onyisi, PUE ;

Patterson, JR ;

Peterson, D ;

Phillips, EA ;

Pivarski, J ;

Riley, D ;

Ryd, A ;

Sadoff, AJ ;

Schwarthoff, H ;

Shepherd, MR ;

Stroiney, S ;

Sun, WM ;

Urner, D ;

Wilksen, T ;

Weinberger, M ;

Athar, SB ;

Avery, P ;

Breva-Newell, L ;

Patel, R ;

Potlia, V ;

Stoeck, H ;

Yelton, J ;

Rubin, P ;

Cawlfield, C ;

Eisenstein, BI ;

Gollin, GD .

PHYSICAL REVIEW LETTERS, 2005, 94 (23)

[6] Review of particle physics [J].

Eidelman, S ;

Hayes, KG ;

Olive, KA ;

Aguilar-Benitez, M ;

Amsler, C ;

Asner, D ;

Babu, KS ;

Barnett, RM ;

Beringer, J ;

Burchat, PR ;

Carone, CD ;

Caso, C ;

Conforto, G ;

Dahl, O ;

D'Ambrosio, G ;

Doser, M ;

Feng, JL ;

Gherghetta, T ;

Gibbons, L ;

Goodman, M ;

Grab, C ;

Groom, DE ;

Gurtu, A ;

Hagiwara, K ;

Hernández-Rey, JJ ;

Hikasa, K ;

Honscheid, K ;

Jawahery, H ;

Kolda, C ;

Kwon, Y ;

Mangano, ML ;

Manohar, AV ;

March-Russell, J ;

Masoni, A ;

Miquel, R ;

Mönig, K ;

Murayama, H ;

Nakamura, K ;

Navas, S ;

Pape, L ;

Patrignani, C ;

Piepke, A ;

Raffelt, G ;

Roos, M ;

Tanabashi, M ;

Terning, J ;

Törnqvist, NA ;

Trippe, TG ;

Vogel, P ;

Wohl, CG .

PHYSICS LETTERS B, 2004, 592 (1-4) :1-1109

[7] DECAY RATES OF NEUTRAL MESONS [J].

GELLMANN, M ;

WAGNER, WG ;

SHARP, D .

PHYSICAL REVIEW LETTERS, 1962, 8 (06) :261-&

[8] Phases and amplitudes in inclusive Ψ and Ψ′ decays [J].

Gérard, JM ;

Weyers, J .

PHYSICS LETTERS B, 1999, 462 (3-4) :324-328

[9] Tests for the asymptotic behaviour of the γ*→γπ0 form factor [J].

Gerard, JM ;

Castro, GL .

PHYSICS LETTERS B, 1998, 425 (3-4) :365-368

[10] Ratio of hadronic decay rates of J/ψ and ψ(2S) and the ρπ puzzle -: art. no. 114019 [J].

Gu, YF ;

Li, XH .

PHYSICAL REVIEW D, 2001, 63 (11)

← 1 2 →