Evidence for the decay KL→μ+μ-γγ -: art. no. 112001

被引:8
|
作者
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
Glazov, A
Golossanov, A
Graham, G
Graham, J
Hagan, K
Halkiadakis, E
Hanagaki, K
Hazumi, M
Hidaka, S
Hsiung, YB
Jejer, V
Jennings, J
Jensen, DA
Kessler, R
Kobrak, HGE
LaDue, J
Lath, A [1 ]
Ledovskoy, A
McBride, PL
McManus, AP
Mikelsons, P
Monnier, E
Nakaya, T
Nelson, KS
Nguyen, H
机构
[1] Rutgers State Univ, Piscataway, NJ 08855 USA
[2] Univ Arizona, Tucson, AZ 85721 USA
[3] Univ Calif Los Angeles, Los Angeles, CA 90095 USA
[4] Univ Calif San Diego, La Jolla, CA 92093 USA
[5] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[6] Univ Colorado, Boulder, CO 80309 USA
[7] Elmhurst Coll, Elmhurst, IL 60126 USA
[8] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA
[9] Osaka Univ, Osaka 560, Japan
[10] Rice Univ, Houston, TX 77005 USA
[11] Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA
[12] Univ Virginia, Inst Nucl & Particle Phys, Charlottesville, VA 22901 USA
[13] Univ Wisconsin, Madison, WI 53706 USA
来源
PHYSICAL REVIEW D | 2000年 / 62卷 / 11期
关键词
D O I
10.1103/PhysRevD.62.112001
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have observed the decay K-L-->mu (+)mu (-)gamma gamma at the KTeV experiment at Fermilab. This decay presents a formidable background to the search for new physics in K-L-->pi (0)mu (+)mu (-). The 1997 data yielded a sample of 4 signal events, with an expected background of 0.155+/-0.081 events. The branching ratio is beta (K-L -->mu (+)mu (-)gamma gamma)= [10.4(-5.9)(+7.5) (stat)+/- 0.7 (syst)] x 10(-9) with m(gamma gamma)greater than or equal to1 MeV/c(2), consistent with a QED calculation which predicts (9.1+/-0.8) x 10(-9).
引用
收藏
页数:5
相关论文
共 50 条
  • [1] First evidence of Λ(Λ)over-bar in χcJ decays -: art. no. 112001
    Bai, JZ
    Ban, Y
    Bian, JG
    Cai, X
    Chang, JF
    Chen, HF
    Chen, HS
    Chen, J
    Chen, JC
    Chen, YB
    Chi, SP
    Chu, YP
    Cui, XZ
    Dai, YM
    Dai, YS
    Dong, LY
    Du, SX
    Du, ZZ
    Fang, J
    Fang, SS
    Fu, CD
    Fu, HY
    Fu, LP
    Gao, CS
    Gao, ML
    Gao, YN
    Gong, MY
    Gong, WX
    Gu, SD
    Guo, YN
    Guo, YQ
    Guo, ZJ
    Han, SW
    Harris, FA
    He, J
    He, KL
    He, M
    He, X
    Heng, YK
    Hong, T
    Hu, HM
    Hu, T
    Huang, GS
    Huang, L
    Huang, XP
    Ji, XB
    Jiang, CH
    Jiang, XS
    Jin, DP
    Jin, S
    PHYSICAL REVIEW D, 2003, 67 (11)
  • [2] Measurements of the branching fraction and decay distributions for KL→π±μ∓νγ and KL→π±e∓νγ -: art. no. 012001
    Alexopoulos, T
    Andre, T
    Arenton, M
    Barbosa, RF
    Barker, AR
    Bellantoni, L
    Bellavance, A
    Blucher, E
    Bock, GJ
    Cheu, E
    Childress, S
    Coleman, R
    Corcoran, MD
    Cox, B
    Erwin, AR
    Ford, R
    Glazov, A
    Golossanov, A
    Graham, J
    Hamm, J
    Hanagaki, K
    Hsiung, YB
    Huang, H
    Jejer, V
    Jensen, DA
    Kessler, R
    Kobrak, HGE
    Kotera, K
    LaDue, J
    Ledovskoy, A
    McBride, PL
    Monnier, E
    Nelson, KS
    Nguyen, H
    Niclasen, R
    Prasad, V
    Qi, XR
    Ramberg, EJ
    Ray, RE
    Ronquest, M
    Santos, E
    Shanahan, P
    Shields, J
    Slater, W
    Smith, D
    Solomey, N
    Swallow, EC
    Toale, PA
    Tschirhart, R
    Wah, YW
    PHYSICAL REVIEW D, 2005, 71 (01): : 012001 - 1
  • [3] Measurements of the decay KL→e+e-μ+μ- -: art. no. 141801
    Alavi-Harati, A
    Alexopoulos, T
    Arenton, M
    Arisaka, K
    Barbosa, RF
    Barker, AR
    Barrio, M
    Bellantoni, L
    Bellavance, A
    Blucher, E
    Bock, GJ
    Bown, C
    Bright, S
    Cheu, E
    Coleman, R
    Corcoran, MD
    Cox, B
    Erwin, AR
    Escobar, CO
    Ford, R
    Glazov, A
    Golossanov, A
    Gouffon, P
    Graham, J
    Hamm, J
    Hanagaki, K
    Hsiung, YB
    Huang, H
    Jejer, V
    Jensen, DA
    Kessler, R
    Kobrak, HGE
    Kotera, K
    LaDue, J
    Lai, N
    Ledovskoy, A
    McBride, PL
    Monnier, E
    Nelson, KS
    Nguyen, H
    Prasad, V
    Qi, XR
    Quinn, B
    Ramberg, EJ
    Ray, RE
    Santos, E
    Senyo, K
    Shanahan, P
    Shields, J
    Slater, W
    PHYSICAL REVIEW LETTERS, 2003, 90 (14)
  • [4] Observation of the decay B→Kl+l- -: art. no. 021801
    Abe, K
    Abe, K
    Abe, R
    Adachi, I
    Ahn, BS
    Aihara, H
    Akatsu, M
    Asano, Y
    Aso, T
    Aulchenko, V
    Aushev, T
    Bakich, AM
    Banas, E
    Behari, S
    Behera, PK
    Bondar, A
    Bozek, A
    Browder, TE
    Casey, BCK
    Chang, P
    Chao, Y
    Cheon, BG
    Chistov, R
    Choi, SK
    Choi, Y
    Dong, LY
    Drutskoy, A
    Eidelman, S
    Enari, Y
    Fang, F
    Fujii, H
    Fukunaga, C
    Fukushima, M
    Gabyshev, N
    Garmash, A
    Gershon, T
    Gordon, A
    Gotow, K
    Guo, R
    Haba, J
    Hamasaki, H
    Hanagaki, K
    Handa, F
    Hara, K
    Hara, T
    Hastings, NC
    Hayashii, H
    Hazumi, M
    Heenan, EM
    Higuchi, I
    PHYSICAL REVIEW LETTERS, 2002, 88 (02) : 6
  • [5] Evidence for the decay Σ+ → pμ+ μ- -: art. no. 021801
    Park, HK
    Burnstein, RA
    Chakravorty, A
    Chen, YC
    Choong, WS
    Clark, K
    Dukes, EC
    Durandet, C
    Felix, J
    Fu, Y
    Gidal, G
    Gustafson, HR
    Holmstrom, T
    Huang, M
    James, C
    Jenkins, CM
    Jones, T
    Kaplan, DM
    Lederman, LM
    Leros, N
    Longo, MJ
    Lopez, F
    Lu, LC
    Luebke, W
    Luk, KB
    Nelson, KS
    Perroud, JP
    Rajaram, D
    Rubin, HA
    Volk, J
    White, CG
    White, SL
    Zyla, P
    PHYSICAL REVIEW LETTERS, 2005, 94 (02)
  • [6] Measurements of semileptonic KL decay form factors -: art. no. 092007
    Alexopoulos, T
    Arenton, M
    Barbosa, RF
    Barker, AR
    Bellantoni, L
    Bellavance, A
    Blucher, E
    Bock, GJ
    Cheu, E
    Childress, S
    Coleman, R
    Corcoran, MD
    Cox, B
    Erwin, AR
    Ford, R
    Glazov, A
    Golossanov, A
    Graham, J
    Hamm, J
    Hanagaki, K
    Hsiung, YB
    Huang, H
    Jejer, V
    Jensen, DA
    Kessler, R
    Kobrak, HGE
    Kotera, K
    LaDue, J
    Ledovskoy, A
    McBride, PL
    Monnier, E
    Nelson, KS
    Nguyen, H
    Niclasen, R
    Prasad, V
    Qi, XR
    Ramberg, EJ
    Ray, RE
    Ronquest, M
    Santos, E
    Shanahan, P
    Shields, J
    Slater, W
    Smith, D
    Solomey, N
    Swallow, EC
    Tesarek, RJ
    Toale, PA
    Tschirhart, R
    Wah, YW
    PHYSICAL REVIEW D, 2004, 70 (09): : 092007 - 1
  • [7] Measurement of the B→K*γ branching fractions and asymmetries -: art. no. 112001
    Nakao, M
    Abe, K
    Abe, K
    Abe, T
    Adachi, I
    Aihara, H
    Akatsu, M
    Asano, Y
    Aso, T
    Aulchenko, V
    Aushev, T
    Bahinipati, S
    Bakich, AM
    Ban, Y
    Bay, A
    Bitenc, U
    Bizjak, I
    Bondar, A
    Bozek, A
    Bracko, M
    Browder, TE
    Chang, P
    Chao, Y
    Chen, KF
    Cheon, BG
    Chistov, R
    Choi, Y
    Chuvikov, A
    Cole, S
    Danilov, M
    Dash, M
    Dong, LY
    Dragic, J
    Drutskoy, A
    Eidelman, S
    Eiges, V
    Enari, Y
    Fang, F
    Fratina, S
    Gabyshev, N
    Garmash, A
    Gershon, T
    Gokhroo, G
    Golob, B
    Hayashii, H
    Hazumi, M
    Higuchi, T
    Hinz, L
    Hokuue, T
    Hoshi, Y
    PHYSICAL REVIEW D, 2004, 69 (11):
  • [8] 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
  • [9] Search for the rare decay KL→π0e+e- -: art. no. 021805
    Alavi-Harati, A
    Alexopoulos, T
    Arenton, M
    Barbosa, RF
    Barker, AR
    Barrio, M
    Bellantoni, L
    Bellavance, A
    Blucher, E
    Bock, GJ
    Bown, C
    Bright, S
    Cheu, E
    Coleman, R
    Corcoran, MD
    Cox, B
    Erwin, AR
    Escobar, CO
    Ford, R
    Glazov, A
    Golossanov, A
    Gomes, RA
    Gouffon, P
    Graham, J
    Hamm, J
    Hanagaki, K
    Hsiung, YB
    Huang, H
    Jejer, V
    Jensen, DA
    Kessler, R
    Kobrak, HGE
    Kotera, K
    LaDue, J
    Lai, N
    Ledovskoy, A
    McBride, PL
    Monnier, E
    Nelson, KS
    Nguyen, H
    Ping, H
    Prasad, V
    Qi, XR
    Quinn, B
    Ramberg, EJ
    Ray, RE
    Ronquest, M
    Santos, E
    Senyo, K
    Shanahan, P
    PHYSICAL REVIEW LETTERS, 2004, 93 (02) : 021805 - 1
  • [10] First observation of the decay KL → π0e+e-γ -: art. no. 021801
    Alavi-Harati, A
    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
    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
    Pang, M
    Pordes, R
    PHYSICAL REVIEW LETTERS, 2001, 87 (02) : 1 - 021801