Radiative VPγ transitions and η-η′ mixing

被引：62

作者：

Bramon, A

Escribano, R

Scadron, MD

机构：

[1] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[2] Univ Autonoma Barcelona, Dept Fis, E-08193 Bellaterra, Barcelona, Spain

[3] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[4] Univ Autonoma Barcelona, IFAE, E-08193 Bellaterra, Barcelona, Spain

来源：

PHYSICS LETTERS B | 2001年 / 503卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(01)00161-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A value for the eta-eta ' mixing angle is extracted from the data on V P gamma transitions using simple quark-model ideas. The set of data covers all possible radiative transitions between the pseudoscalar and vector meson nonets. Two main ingredients of the model are the introduction of flavour-dependent overlaps for the various q (q) over bar wave functions and the use of the quark-flavour basis to describe the eta-eta ' system. In this basis the mixing angle is found to be phi (P) = (37.7 +/- 2.4)degrees. (C) 2001 Published by Elsevier Science B.V.

引用

页码：271 / 276

页数：6

共 25 条

[1]

Achasov MN, 2000, NUCL PHYS A, V675, p213C

[2]

Achasov MN, 2000, EUR PHYS J C, V12, P25, DOI 10.1007/s100529900222

[3] Study of the radiative decay φ → ηγ with CMD-2 detector [J].

Akhmetshin, RR ;

Anashkin, EV ;

Banzarov, VS ;

Barkov, LM ;

Bashtovoy, NS ;

Bondar, AE ;

Bondarev, DV ;

Chernyak, DV ;

Eidelman, SI ;

Fedotovich, GV ;

Gabyshev, NI ;

Grebeniuk, AA ;

Grigoriev, DN ;

Ivanov, PM ;

Kazanin, VF ;

Khazin, BI ;

Koop, IA ;

Krokovny, PP ;

Kurdadze, LM ;

Kuzmin, AS ;

Logashenko, IB ;

Lukin, PA ;

Lysenko, AP ;

Mikhailov, KY ;

Okhapkin, VS ;

Purlatz, TA ;

Root, NI ;

Ruban, AA ;

Ryskulov, NM ;

Shamov, AG ;

Shatunov, YM ;

Schwartz, BA ;

Sidorov, VA ;

Skrinsky, AN ;

Smakhtin, VP ;

Snopkov, IG ;

Solodov, EP ;

Stepanov, PY ;

Sukhanov, AI ;

Yudin, YV ;

Zverev, SG ;

Roberts, BL ;

Thompson, JV ;

Hughes, VW .

PHYSICS LETTERS B, 1999, 460 (1-2) :242-247

[4] New measurement of the rare decay φ→η′γ with CMD-2 [J].

Akhmetshin, RR ;

Anashkin, EV ;

Arpagaus, M ;

Aulchenko, VM ;

Banzarov, VS ;

Barkov, LM ;

Bashtovoy, NS ;

Bondar, AE ;

Bondarev, DV ;

Bragin, AV ;

Chernyak, DV ;

Eidelman, SI ;

Fedotovitch, GV ;

Gabyshev, NI ;

Grebeniuk, AA ;

Grigoriev, DN ;

Hughes, VW ;

Ivanov, PM ;

Karpov, SV ;

Kazanin, VF ;

Khazin, BI ;

Koop, IA ;

Korostelev, MS ;

Krokovny, PP ;

Kurdadze, LM ;

Kuzmin, AS ;

Logashenko, IB ;

Lukin, PA ;

Lysenko, AP ;

Mikhailov, KY ;

Nesterenko, IN ;

Okhapkin, VS ;

Otboev, AV ;

Perevedentsev, EA ;

Polunin, AA ;

Popov, AS ;

Purlatz, TA ;

Root, NI ;

Ruban, AA ;

Ryskulov, NM ;

Shamov, AG ;

Shatunov, YM ;

Shekhtman, AI ;

Shwartz, BA ;

Sibidanov, AL ;

Sidorov, VA ;

Skrinsky, AN ;

Smakhtin, VP ;

Snopkov, IG ;

Solodov, EP .

PHYSICS LETTERS B, 2000, 473 (3-4) :337-342

[5]

[Anonymous], HEPPH9806336

[6] Phenomenological evidence for the gluon content of eta and eta' [J].

Ball, P ;

Frere, JM ;

Tytgat, M .

PHYSICS LETTERS B, 1996, 365 (1-4) :367-376

[7] TEST OF NONRELATIVISTIC QUARK MODEL FOR ELEMENTARY PARTICLES - RADIATIVE DECAYS OF VECTOR MESONS [J].

BECCHI, C ;

MORPURGO, G .

PHYSICAL REVIEW, 1965, 140 (3B) :B687-&

[8] Radiative decays, nonet symmetry, and SU(3) breaking [J].

Benayoun, M ;

DelBuono, L ;

Eidelman, S ;

Ivanchenko, VN ;

O'Connell, HB .

PHYSICAL REVIEW D, 1999, 59 (11)

[9] Mixing of eta-eta' mesons in J/Psi decays into a vector and a pseudoscalar meson [J].

Bramon, A ;

Escribano, R ;

Scadron, MD .

PHYSICS LETTERS B, 1997, 403 (3-4) :339-343

[10]

Bramon A, 1999, EUR PHYS J C, V7, P271, DOI 10.1007/s100529801009

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