CP violating effects in the decay Z → μ+μ-γ induced by ZZγ and Zγγ couplings

被引:16
作者
Pérez, MA [1 ]
Ramírez-Zavaleta, F [1 ]
机构
[1] CINVESTAV, Dept Fis, Mexico City 07000, DF, Mexico
关键词
D O I
10.1016/j.physletb.2005.01.039
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
e analyze possible CP-violating effects induced in the Z decay with hard photon radiation by gamma Z Z and gammagammaZ anomalous vertices. We estimate the sensibility of future linear collider experiments on these couplings coming from CP-odd asymmetries associated to angular correlations of the three particle final state in e(+)e(-) --> Z --> mu(+)mu(-)gamma. We find that a linear collider with an integrated luminosity of 500 fb(-1) and roots- = 0.05 TeV can place the bound \h(1)(gamma,Z) \ < 0.92 at the 90% confidence level for these couplings. (C) 2005 Published by Elsevier B.V.
引用
收藏
页码:68 / 72
页数:5
相关论文
共 27 条
[1]   Possible nonstandard effects in Zγ events at LEP2 [J].
Abraham, KJ ;
Lampe, B .
PHYSICS LETTERS B, 1999, 446 (02) :163-169
[2]   Test of CP invariance in Z→μ+μ-γ decay [J].
Acciarri, M ;
Adriani, O ;
Aguilar-Benitez, M ;
Ahlen, S ;
Alcaraz, J ;
Alemanni, G ;
Allaby, J ;
Aloisio, A ;
Alviggi, MG ;
Ambrosi, G ;
Anderhub, H ;
Andreev, VP ;
Angelescu, T ;
Anselmo, F ;
Arefiev, A ;
Azemoon, T ;
Aziz, T ;
Bagnaia, P ;
Baksay, L ;
Ball, RC ;
Banerjee, S ;
Banerjee, S ;
Banicz, K ;
Barczyk, A ;
Barillere, R ;
Barone, L ;
Bartalini, P ;
Baschirotto, A ;
Basile, M ;
Battiston, R ;
Bay, A ;
Becattini, F ;
Becker, U ;
Behner, F ;
Berdugo, J ;
Berges, P ;
Bertucci, B ;
Betev, BL ;
Bhattacharya, S ;
Biasini, M ;
Biland, A ;
Bilei, GM ;
Blaising, JJ ;
Blyth, SC ;
Bobbink, GJ ;
Bock, R ;
Bohm, A ;
Boldizsar, L ;
Borgia, B ;
Bourilkov, D .
PHYSICS LETTERS B, 1998, 436 (3-4) :428-436
[3]   Study of the e+e- → Zγ process at LEP and limits on triple neutral-gauge-boson couplings [J].
Achard, P ;
Adriani, O ;
Aguilar-Benitez, M ;
Alcaraz, J ;
Alemanni, G ;
Allaby, J ;
Aloisio, A ;
Alviggi, MG ;
Anderhub, H ;
Andreev, VP ;
Anselmo, F ;
Arefiev, A ;
Azemoon, T ;
Aziz, T ;
Bagnaia, P ;
Bajo, A ;
Baksay, G ;
Baksay, L ;
Baldew, SV ;
Banerjee, S ;
Banerjee, S ;
Barczyk, A ;
Barillère, R ;
Bartalini, P ;
Basile, M ;
Batalova, N ;
Battiston, R ;
Bay, A ;
Becattini, F ;
Becker, U ;
Behner, F ;
Bellucci, L ;
Berbeco, R ;
Berdugo, J ;
Berges, P ;
Bertucci, B ;
Betev, BL ;
Biasini, M ;
Biglietti, M ;
Biland, A ;
Blaising, JJ ;
Blyth, SC ;
Bobbink, GJ ;
Böhm, A ;
Boldizsar, L ;
Borgia, B ;
Bottai, S ;
Bourilkov, D ;
Bourquin, M ;
Braccini, S .
PHYSICS LETTERS B, 2004, 597 (02) :119-130
[4]   Experimental effects of the off-shell structure in anomalous neutral triple gauge vertices [J].
Alcaraz, J .
PHYSICAL REVIEW D, 2002, 65 (07) :750201-750209
[5]   Transverse beam polarization and CP-violating triple gauge-boson couplings in e+e-→γZ [J].
Ananthanarayan, B ;
Rindani, SD ;
Singh, RK ;
Bartl, A .
PHYSICS LETTERS B, 2004, 593 :95-104
[6]   ZZγ and Zγγ couplings at linear e+e- collider energies with the effects of Z polarization and initial state radiation -: art. no. 053014 [J].
Atag, S ;
Sahin, I .
PHYSICAL REVIEW D, 2004, 70 (05) :053014-1
[7]   ZZγ and Zγγ couplings in γe collisions with polarized beams -: art. no. 093014 [J].
Atag, S ;
Sahin, I .
PHYSICAL REVIEW D, 2003, 68 (09)
[8]   CP VIOLATION AND Z BOSON DECAYS [J].
BERNREUTHER, W ;
LOW, U ;
MA, JP ;
NACHTMANN, O .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1989, 43 (01) :117-132
[9]   Chiral-invariant CP-violating effective interactions in Z decays to three jets [J].
Bernreuther, W ;
Brandenburg, A ;
Haberl, P ;
Nachtmann, O .
PHYSICS LETTERS B, 1996, 387 (01) :155-161
[10]   CP violation in radiative Z decays [J].
Bruss, D ;
Nachtmann, O ;
Overmann, P .
EUROPEAN PHYSICAL JOURNAL C, 1998, 1 (1-2) :191-199