Search for a new gauge boson in π0 decays

被引：34
|
作者：
Altegoer, J [1 ]
Astier, P
Autiero, D
Baldisseri, A
Baldo-Ceolin, M
Ballocchi, G
Banner, M
Basa, S
Bassompierre, G
Benslama, K
Besson, N
Bird, I
Blumenfeld, B
Bobisut, F
Bouchez, J
Boyd, S
Bueno, A
Bunyatov, S
Camilleri, L
Cardini, A
Castera, A
Cattaneo, PW
Cavasinni, V
Cervera-Villanueva, A
Collazuol, GM
Conforto, G
Conta, C
Contalbrigo, M
Cousins, R
Daniels, D
De Santo, A
Del Prete, T
Dignan, T
Di Lella, L
Silva, EDE
Donnelly, IJ
Dumarchez, J
Fazio, T
Feldman, GJ
Ferrari, R
Ferrere, D
Flaminio, V
Fraternali, M
Gaillard, JM
Galumian, P
Gangler, E
Geiser, A
Geppert, D
Gibin, D
Gninenko, SN
机构：
[1] Univ Dortmund, Dortmund, Germany
[2] Univ Massachusetts, Amherst, MA 01003 USA
[3] LAPP, Annecy, France
[4] Johns Hopkins Univ, Baltimore, MD USA
[5] Harvard Univ, Cambridge, MA 02138 USA
[6] INFN, Cosenza, Italy
[7] Univ Calabria, I-87036 Cosenza, Italy
[8] JINR Dubna, Dubna, Russia
[9] Univ Florence, Florence, Italy
[10] Ist Nazl Fis Nucl, I-50125 Florence, Italy
[11] CERN, Geneva, Switzerland
[12] Univ Lausanne, Lausanne, Switzerland
[13] Univ Calif Los Angeles, Los Angeles, CA USA
[14] Univ Melbourne, Melbourne, Vic, Australia
[15] Nucl Res Inst, Moscow, Russia
[16] Univ Padua, Padova, Italy
[17] Ist Nazl Fis Nucl, Padova, Italy
[18] Univ Paris, LPNHE, F-75252 Paris, France
[19] Univ Paris 07, LPNHE, Paris, France
[20] Univ Paris 06, LPNHE, Paris, France
[21] Univ Pavia, I-27100 Pavia, Italy
[22] Ist Nazl Fis Nucl, I-27100 Pavia, Italy
[23] Univ Pisa, Pisa, Italy
[24] Ist Nazl Fis Nucl, Pisa, Italy
[25] Univ Roma 3, Roma, Italy
[26] Univ Sydney, Sydney, NSW 2006, Australia
[27] ANSTO Sydney, Menai, NSW, Australia
[28] Ist Nazl Fis Nucl, I-50125 Florence, Italy
[29] Univ Urbino, I-61029 Urbino, Italy
[30] Rudjer Boskovic Inst, Zagreb, Croatia
来源：
PHYSICS LETTERS B | 1998年 / 428卷 / 1-2期
基金：
美国国家科学基金会; 澳大利亚研究理事会;
关键词：
D O I：
10.1016/S0370-2693(98)00402-X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A search was made for a new light gauge boson X which might be produced in pi(0) -->, gamma + X decay from neutral pions generated by 450 GeV protons in the CERN SPS neutrino target. The X's would penetrate the downstream shielding and be observed in the NOMAD detector via the Primakoff effect, in the process of X --> pi(0) conversion in the external Coulomb field of a nucleus. With 1.45 x 10(18) protons on target, 20 candidate events with energy between 8 and 140 GeV were found from the analysis of neutrino data. This number is in agreement with the expectation of 18.1 +/- 2.8 background events from standard neutrino processes. A new 90% C.L. upper limit on the branching ratio Br(pi(0) --> Y + X)< (3.3 to 1.9)X 10(-5) for X masses ranging from 0 to 120 MeV/c(2) is obtained. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：197 / 205
页数：9
相关论文
共 50 条
  • [1] Search for a new light gauge boson in pi(0), eta and eta' decays
    Amsler, C
    Armstrong, DS
    Baker, CA
    Barnett, BM
    Batty, CJ
    Benayoun, M
    Beuchert, K
    Birien, P
    Blum, P
    Bossingham, R
    Braune, K
    Brose, J
    Bugg, DV
    Case, T
    Cooper, AR
    Cramer, O
    Crowe, KM
    Degener, T
    Dietz, HP
    Djaoshvili, N
    Dombrowski, SV
    Doser, M
    Dunnweber, W
    Engelhardt, D
    Englert, M
    Faessler, MA
    Felix, C
    Giarritta, P
    Hackmann, R
    Haddock, RP
    Heinsius, FH
    Herz, M
    Hessey, NP
    Hidas, P
    Holtzhaussen, C
    Illinger, P
    Jamnik, D
    Kalinowsky, H
    Kalteyer, B
    Kammle, B
    Kiel, T
    Kisiel, J
    Klempt, E
    Koch, H
    Kobel, M
    Kolo, C
    Kunze, M
    Lakata, M
    Landua, R
    Ludemann, J
    [J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1996, 70 (02): : 219 - 226
  • [2] On search for a new light gauge boson from π0(η)→γ+X decays in neutrino experiments
    Gninenko, SN
    Krasnikov, NV
    [J]. PHYSICS LETTERS B, 1998, 427 (3-4) : 307 - 313
  • [3] SEARCH FOR A NEW LIGHT GAUGE BOSON IN DECAYS OF PI(O) AND ETA
    AMSLER, C
    ARMSTRONG, DS
    AUGUSTIN, I
    BAKER, CA
    BARNETT, BM
    BATTY, CJ
    BEUCHERT, K
    BIRIEN, P
    BLUM, P
    BOSSINGHAM, R
    BRAUNE, K
    BROSE, J
    BUGG, DV
    BURCHELL, M
    CASE, T
    COOPER, A
    CROWE, KM
    DEGENER, T
    DIETZ, HP
    VONDOMBROWSKI, S
    DOSER, M
    DUNNWEBER, W
    ENGELHARDT, D
    ENGLERT, M
    FAESSLER, MA
    FELIX, C
    HACKMANN, R
    HADDOCK, RP
    HEINSIUS, FH
    HESSEY, NP
    HIDAS, P
    ILLINGER, P
    JAMNIK, D
    JAVORFI, Z
    KALINOWSKY, H
    KAMMLE, B
    KIEL, T
    KISIEL, J
    KLEMPT, E
    KOBEL, M
    KOCH, H
    KOLO, C
    KONIGSMANN, K
    KUNZE, M
    LANDUA, R
    LOSER, F
    LUDEMANN, J
    MATTHAY, H
    MERKEL, M
    MERLO, JP
    [J]. PHYSICS LETTERS B, 1994, 333 (1-2) : 271 - 276
  • [4] Search for a dark vector gauge boson decaying to π+π- using η→π+π- γ decays
    Won, E.
    Adachi, I.
    Aihara, H.
    Al Said, S.
    Asner, D. M.
    Aushev, T.
    Ayad, R.
    Badhrees, I.
    Bakich, A. M.
    Bansal, V.
    Barberio, E.
    Behera, P.
    Bhuyan, B.
    Biswal, J.
    Bobrov, A.
    Bozek, A.
    Bracko, M.
    Cervenkov, D.
    Chekelian, V.
    Chen, A.
    Cheon, B. G.
    Chilikin, K.
    Chistov, R.
    Cho, K.
    Chobanova, V.
    Choi, Y.
    Cinabro, D.
    Dash, N.
    Di Carlo, S.
    Dolezal, Z.
    Drsal, Z.
    Dutta, D.
    Eidelman, S.
    Epifanov, D.
    Farhat, H.
    Fast, J. E.
    Ferber, T.
    Fulsom, B. G.
    Gaur, V.
    Gabyshev, N.
    Garmash, A.
    Gillard, R.
    Goldenzweig, P.
    Greenwald, D.
    Haba, J.
    Hayasaka, K.
    Hayashii, H.
    Hou, W. -S.
    Iijima, T.
    Inami, K.
    [J]. PHYSICAL REVIEW D, 2016, 94 (09)
  • [5] Decays of a leptophobic gauge boson
    Georgi, H
    Glashow, SL
    [J]. PHYSICS LETTERS B, 1996, 387 (02) : 341 - 345
  • [6] Invisible dark gauge boson search in top decays using a kinematic method
    Kim, Doojin
    Lee, Hye-Sung
    Park, Myeonghun
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2015, (03):
  • [7] Invisible dark gauge boson search in top decays using a kinematic method
    Doojin Kim
    Hye-Sung Lee
    Myeonghun Park
    [J]. Journal of High Energy Physics, 2015
  • [8] SEARCH FOR THE STANDARD MODEL HIGGS-BOSON IN Z(0) DECAYS
    ABREU, P
    ADAM, W
    ADYE, T
    AGASI, E
    AJINENKO, I
    ALEKSAN, R
    ALEKSEEV, GD
    ALLPORT, PP
    ALMEHED, S
    ALMEIDA, FML
    ALVSVAAG, SJ
    AMALDI, U
    ANDREAZZA, A
    ANTILOGUS, P
    APEL, WD
    APSIMON, RJ
    ARNOUD, Y
    ASMAN, B
    AUGUSTIN, JE
    AUGUSTINUS, A
    BAILLON, P
    BAMBADE, P
    BARAO, F
    BARATE, R
    BARBIELLINI, G
    BARDIN, DY
    BAKER, GJ
    BARONCELLI, A
    BARRING, O
    BARRIO, JA
    BARTL, W
    BATES, MJ
    BATTAGLIA, M
    BAUBILLIER, M
    BECKS, KH
    BEGALLI, M
    BEILLIERE, P
    BELTRAN, P
    BENVENUTI, AC
    BERGGREN, M
    BERTRAND, D
    BIANCHI, F
    BIGI, M
    BILENKY, MS
    BILLOIR, P
    BJARNE, J
    BLOCH, D
    BLOCKI, J
    BLYTH, S
    BOCCI, V
    [J]. NUCLEAR PHYSICS B, 1994, 421 (01) : 3 - 37
  • [9] Light gauge boson Z′ and LFV decays of the electroweak gauge boson Z
    Lai, Jie-Ting
    Yue, Chong-Xing
    [J]. MODERN PHYSICS LETTERS A, 2017, 32 (06)
  • [10] SEARCH FOR NEW GAUGE BOSONS IN THE DECAYS OF PSEUDOSCALAR MESONS
    DOBROLYUBOV, MI
    [J]. SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1990, 52 (02): : 352 - 357
12345