Measurement of the η → π+π-e+e- decay branching ratio

被引：23
|
作者：
Bargholtz, Chr.
Bashkanov, M.
Bogoslawsky, D.
Calen, H.
Cappellaro, F.
Clement, H.
Demiroers, L.
Ekstrom, C.
Fransson, K.
Geren, L.
Gustafsson, L.
Hoistad, B.
Ivanov, G.
Jacewicz, M. [1 ]
Jiganov, E.
Johansson, T.
Keleta, S.
Koch, I.
Kullander, S.
Kupsc, A.
Kuznetsov, A.
Laukhin, I. V.
Lindberg, K.
Marciniewski, P.
Meier, R.
Morosov, B.
Oelert, W.
Pauly, C.
Pettersson, H.
Petukhov, Y.
Povtorejko, A.
Ruber, R. J. M. Y.
Schonning, K.
Scobel, W.
Shafigullin, R.
Shwartz, B.
Skorodko, T.
Sopov, V.
Stepaniak, J.
Tchernyshev, V.
Tegner, P. -E.
Engblom, P. Thorngren
Tikhomirov, V.
Turowiecki, A.
Wagner, G. J.
Wolke, M.
Yamamoto, A.
Zabierowski, J.
Zartova, I.
Zlomanczuk, J.
机构：
[1] Univ Uppsala, S-75105 Uppsala, Sweden
[2] Univ Stockholm, S-10691 Stockholm, Sweden
[3] Univ Tubingen, Inst Phys, D-72074 Tubingen, Germany
[4] Joint Nucl Res Inst, Dubna 141980, Russia
[5] Univ Hamburg, Inst Expt Phys, D-2000 Hamburg, Germany
[6] Moscow Phys Engn Inst, Moscow, Russia
[7] Forschungszentrum Julich, Inst Kernphys, Julich, Germany
[8] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[9] Inst Theoret & Expt Phys, Moscow 117259, Russia
[10] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland
[11] Soltan Inst Nucl Studies, Lodz, Poland
[12] Inst Phys Expt, Warsaw, Poland
[13] High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan
来源：
PHYSICS LETTERS B | 2007年 / 644卷 / 5-6期
关键词：
eta meson decays; dalitz decays;
D O I：
10.1016/j.physletb.2006.12.008
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The reaction pd -> He-3 eta at threshold was used to provide a clean source of eta mesons for decay studies with the WASA detector at CELSIUS. The branching ratio of the decay eta -> pi(+)pi(-)e(+)e(-) is measured to be (4.3 +/- 1.3 +/- 0.4) x 10(-4). (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：299 / 303
页数：5
相关论文
共 50 条
  • [1] MEASUREMENT OF THE BRANCHING RATIO OF THE DECAY PI-0-]E+E-
    NIEBUHR, C
    HELVETICA PHYSICA ACTA, 1987, 60 (5-6): : 766 - 766
  • [2] MEASUREMENT OF THE BRANCHING RATIO FOR THE RARE DECAY PI-O-]E+E-
    FRANK, JS
    HOFFMAN, CM
    MISCHKE, RE
    MOIR, DC
    SARRACINO, JS
    THOMPSON, PA
    SCHARDT, MA
    PHYSICAL REVIEW D, 1983, 28 (03): : 423 - 433
  • [3] Measurement of the branching fraction of the decay KL→π+π-e+e-
    Adams, J
    Alavi-Harati, A
    Albuquerque, IF
    Alexopoulos, T
    Arenton, M
    Arisaka, K
    Averitte, S
    Barker, AR
    Bellantoni, L
    Bellavance, A
    Belz, J
    Ben-David, R
    Bergman, DR
    Blucher, E
    Bock, GJ
    Bown, C
    Bright, S
    Cheu, E
    Childress, S
    Coleman, R
    Corcoran, MD
    Corti, G
    Cox, B
    Crisler, MB
    Erwin, AR
    Ford, R
    Graham, G
    Graham, J
    Hagan, KA
    Halkiadakis, E
    Hanagaki, K
    Hazumi, M
    Hidaka, S
    Hsiung, YB
    Jejer, V
    Jennings, J
    Jensen, DA
    Johnson, PT
    Kessler, R
    Kobrak, HGE
    LaDue, J
    Lath, A
    Ledovskoy, A
    McManus, AP
    Mikelsons, P
    Monnier, E
    Nakaya, T
    Nauenberg, U
    Nelson, KS
    Nguyen, H
    PHYSICAL REVIEW LETTERS, 1998, 80 (19) : 4123 - 4126
  • [4] Measurement of the branching ratio and search for a CP violating asymmetry in the η → π+π-e+e-(γ) decay at KLOE
    Ambrosino, F.
    Antonelli, A.
    Antonelli, M.
    Archilli, F.
    Beltrame, P.
    Bencivenni, G.
    Bertolucci, S.
    Bini, C.
    Bloise, C.
    Bocchetta, S.
    Bossi, F.
    Branchini, P.
    Capon, G.
    Capussela, T.
    Ceradini, F.
    Ciambrone, P.
    Crucianelli, F.
    De Lucia, E.
    De Santis, A.
    De Simone, P.
    De Zorzi, G.
    Denig, A.
    Di Domenico, A.
    Di Donato, C.
    Di Micco, B.
    Dreucci, M.
    Felici, G.
    Fiore, S.
    Franzini, P.
    Gatti, C.
    Gauzzi, P.
    Giovannella, S.
    Graziani, E.
    Lanfranchi, G.
    Lee-Franzini, J.
    Leone, D.
    Martini, M.
    Massarotti, P.
    Meola, S.
    Miscetti, S.
    Moulson, M.
    Mueller, S.
    Murtas, F.
    Napolitano, M.
    Nguyen, F.
    Palutan, M.
    Pasqualucci, E.
    Passeri, A.
    Patera, V.
    Perfetto, F.
    PHYSICS LETTERS B, 2009, 675 (3-4) : 283 - 288
  • [5] Branching ratio measurement of the decay KL→e+e-μ+μ- -: art. no. 111802
    Alavi-Harati, A
    Alexopoulos, T
    Arenton, M
    Arisaka, K
    Averitte, S
    Barbosa, RF
    Barker, AR
    Barrio, M
    Bellantoni, L
    Bellavance, A
    Belz, J
    Ben-David, R
    Bergman, DR
    Blucher, E
    Bock, GJ
    Bown, C
    Bright, S
    Cheu, E
    Childress, S
    Coleman, R
    Corcoran, MD
    Corti, G
    Cox, B
    Crisler, MB
    Erwin, AR
    Ford, R
    Glazov, A
    Golossanov, A
    Graham, G
    Graham, J
    Hagan, K
    Halkiadakis, E
    Hamm, J
    Hanagaki, K
    Hidaka, S
    Hsiung, YB
    Jejer, V
    Jensen, DA
    Kessler, R
    Kobrak, HGE
    LaDue, J
    Lath, A
    Ledovskoy, A
    McBride, PL
    Mikelsons, P
    Monnier, E
    Nakaya, T
    Nelson, KS
    Nguyen, H
    O'Dell, V
    PHYSICAL REVIEW LETTERS, 2001, 87 (11) : 111802
  • [6] Upper limit for the branching ratio of KS→e+e- decay
    Angelopoulos, A
    Apostolakis, A
    Aslanides, E
    Backenstoss, G
    Bargassa, P
    Behnke, O
    Benelli, A
    Bertin, V
    Blanc, F
    Bloch, P
    Carlson, P
    Carroll, M
    Carvalho, J
    Cawley, E
    Charalambous, S
    Chardin, G
    Chertok, MB
    Cody, A
    Danielsson, M
    Dejardin, M
    Derre, J
    Ealet, A
    Eleftheriadis, C
    Evangelou, I
    Faravel, L
    Ferreira-Marques, R
    Fetscher, W
    Fidecaro, M
    Filipcic, A
    Francis, D
    Fry, J
    Gabathuler, E
    Gamet, R
    Garreta, D
    Gerber, HJ
    Go, A
    Haselden, A
    Hayman, PJ
    Henry-Couannier, F
    Hollander, RW
    Hubert, E
    Jon-And, K
    Kettle, PR
    Kokkas, P
    Kreuger, R
    Le Gac, R
    Leimgruber, F
    Liolios, A
    Machado, E
    Mandic, I
    HADRON SPECTROSCOPY, 1998, (432): : 611 - 614
  • [7] A MEASUREMENT OF BRANCHING RATIO FOR DECAY OMEGAO -] E+ + E-
    BINNIE, DM
    DUANE, A
    JANE, MR
    JONES, WG
    MASON, DC
    NEWTH, JA
    POTTER, DC
    RAHMAN, IU
    WALTERS, J
    DICKINSO.B
    ELLISON, RJ
    HARCKHAM, AE
    IBBOTSON, M
    MARSHALL, R
    TEMPLEMA.RF
    WYNROE, AJ
    PHYSICS LETTERS, 1965, 18 (03): : 348 - &
  • [8] A NEW UPPER LIMIT FOR THE BRANCHING RATIO OF THE DECAY KS0-]E+E-
    BITSADZE, GS
    BUDAGOV, YA
    CHIRIKOVZORIN, IE
    DZHELEPOV, VP
    FESHCHENKO, AA
    FLYAGIN, VB
    LOMAKIN, YF
    MALYUKOV, SN
    RUSSAKOVICH, NA
    SEMENOV, AA
    SERGEEV, SV
    VINOGRADOV, VB
    AKIMENKO, SA
    BELOUSSOV, VI
    BLICK, AM
    KOLOSOV, VN
    KUTIN, VM
    PAVLINOV, AI
    SOLOVEV, AS
    MANIEV, VM
    MINASHVILI, IA
    JORDANOV, AB
    TSENOV, RV
    SANDOR, L
    SPALEK, J
    STRMEN, P
    TOKAR, S
    PHYSICS LETTERS B, 1986, 167 (01) : 138 - 140
  • [9] UPPER LIMIT FOR THE BRANCHING RATIO OF KAPPA-S(O)-]E+E- DECAY
    BLICK, AM
    KOLOSOV, VN
    KUTJIN, VM
    SHELIKHOV, VI
    CHIRIKOVZORIN, IE
    CHLACHIDZE, GA
    DAVYDOV, YI
    FLYAGIN, VB
    GLAGOLEV, VV
    KOLOMYICHENKO, AV
    KURILIN, AS
    LIBA, IP
    LOMAKIN, YF
    MALYUKOV, SN
    MINASHVILI, IP
    PUKHOV, OE
    ROMANOVSKY, VI
    RUSSAKOVICH, NA
    RUSSAKOVICH, NL
    SEMENOV, AA
    SHALYUGIN, AN
    SOLOVYOV, AS
    VELEV, GV
    VOLODKO, AG
    PHYSICS LETTERS B, 1994, 334 (1-2) : 234 - 236
  • [10] Measurement of the decay KL→e+e-γγ
    Setzu, MG
    Nappi, A
    Beisser, A
    Beier, T
    Blumer, H
    Buchholz, P
    Coward, D
    Kleinknecht, K
    Leber, F
    Renk, B
    Rohrer, H
    Sander, HG
    Scheerer, F
    Scheidt, J
    Staeck, J
    Wagner, A
    Barr, GD
    Cundy, D
    Doble, N
    Gatignon, L
    Grafstrom, P
    Hagelberg, R
    Wahl, H
    Peach, KJ
    Auge, E
    Fournier, D
    Iconomidou-Fayard, L
    Perdereau, O
    Schaffer, AC
    Serin, L
    Bertanza, L
    Bigi, A
    Calafiura, P
    Calvetti, M
    Carosi, R
    Casali, R
    Fantechi, R
    Mannelli, I
    Marzulli, VM
    Pierazzini, GM
    Holder, M
    Kreutz, A
    Werthenbach, R
    PHYSICS LETTERS B, 1998, 420 (1-2) : 205 - 210
12345