Contribution to ε′/ε from anomalous gauge couplings

被引：16

作者：

He, XG ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan

来源：

PHYSICS LETTERS B | 1999年 / 460卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(99)00743-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently the KTev Collaboration has measured Re(epsilon'/epsilon)=(28 +/- 4.1)x 10(-4) which is in agreement with early measurements from NA31. The Standard Model prediction for epsilon'/epsilon is On the lower end of the experimentally allowed range depending on models for hadronic matrix elements. In this paper we study the contributions from anomalous gauge couplings. We find that the contributions from anomalous couplings can be significant and can enhance epsilon'/epsilon to have a value closer to data. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：405 / 410

页数：6

共 50 条

[1] Study of the ZZ gamma and Z gamma gamma couplings in Z(vv)gamma production [J].

Abachi, S ;

Abbott, B ;

Abolins, M ;

Acharya, BS ;

Adam, I ;

Adams, DL ;

Adams, M ;

Ahn, S ;

Aihara, H ;

Alves, GA ;

Amidi, E ;

Amos, N ;

Anderson, EW ;

Astur, R ;

Baarmand, MM ;

Baden, A ;

Balamurali, V ;

Balderston, J ;

Baldin, B ;

Banerjee, S ;

Bantly, J ;

Bartlett, JF ;

Bazizi, K ;

Belyaev, A ;

Beri, SB ;

Bertram, I ;

Bezzubov, VA ;

Bhat, PC ;

Bhatnagar, V ;

Bhattacharjee, M ;

Biswas, N ;

Blazey, G ;

Blessing, S ;

Bloom, P ;

Boehnlein, A ;

Bojko, NI ;

Borcherding, F ;

Borders, J ;

Boswell, C ;

Brandt, A ;

Brock, R ;

Bross, A ;

Buchholz, D ;

Burtovoi, VS ;

Butler, JM ;

Carvalho, W ;

Casey, D ;

CastillaValdez, H ;

Chakraborty, D ;

Chang, SM .

PHYSICAL REVIEW LETTERS, 1997, 78 (19) :3640-3645

[2] Evidence for W+W- production in (p)over-bar-p collisions at root s=1.8 TeV [J].

Abe, F ;

Akimoto, H ;

Akopian, A ;

Albrow, MG ;

Amendolia, SR ;

Amidei, D ;

Antos, J ;

Aota, S ;

Apollinari, G ;

Asakawa, T ;

Ashmanskas, W ;

Atac, M ;

Azfar, F ;

AzziBacchetta, P ;

Bacchetta, N ;

Badgett, W ;

Bagdasarov, S ;

Bailey, MW ;

Bao, J ;

deBarbaro, P ;

BarbaroGaltieri, A ;

Barnes, VE ;

Barnett, BA ;

Barone, M ;

Barzi, E ;

Bauer, G ;

Baumann, T ;

Bedeschi, F ;

Behrends, S ;

Belforte, S ;

Bellettini, G ;

Bellinger, J ;

Benjamin, D ;

Benlloch, J ;

Bensinger, J ;

Benton, D ;

Beretvas, A ;

Berge, JP ;

Berryhill, J ;

Bertolucci, S ;

Bevensee, B ;

Bhatti, A ;

Biery, K ;

Binkley, M ;

Bisello, D ;

Blair, RE ;

Blocker, C ;

Bodek, A ;

Bokhari, W ;

Bolognesi, V .

PHYSICAL REVIEW LETTERS, 1997, 78 (24) :4536-4540

[3] INFLUENCE OF ADDITIONAL FERMIONS AND GAUGE BOSONS ON RE(EPSILON'EPSILON) [J].

AGRAWAL, J ;

FRAMPTON, PH .

NUCLEAR PHYSICS B, 1994, 419 (02) :254-278

[4] OBSERVING B-]S-MU(+)MU(-) DECAYS AT HADRON COLLIDERS [J].

BAILLIE, G .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1994, 61 (04) :667-673

[5] A NEW MEASUREMENT OF DIRECT CP VIOLATION IN THE NEUTRAL KAON SYSTEM [J].

BARR, GD ;

BUCHHOLZ, P ;

CAROSI, R ;

COWARD, D ;

CUNDY, D ;

DOBLE, N ;

GATIGNON, L ;

GIBSON, V ;

GRAFSTROM, P ;

HAGELBERG, R ;

VANDERLANS, J ;

NELSON, HN ;

WAHL, H ;

PEACH, KJ ;

BLUMER, H ;

HEINZ, R ;

KLEINKNECHT, K ;

MAYER, P ;

PANZER, B ;

RENK, B ;

ROHRER, H ;

SANDER, HG ;

WAGNER, A ;

AUGE, E ;

FOURNIER, D ;

HEUSSE, P ;

ICONOMIDOUFAYARD, L ;

HARRUS, I ;

PERDEREAU, O ;

SCHAFFER, AC ;

SERIN, L ;

BERTANZA, L ;

BIGI, A ;

CALAFIURA, P ;

CALVETTI, M ;

CARROZZA, MC ;

CASALI, R ;

CERRI, C ;

FANTECHI, R ;

MANNELLI, IG ;

MARZULLI, VM ;

NAPPI, A ;

PIERAZZINI, G ;

HOLDER, M ;

KREUTZ, A ;

QUAST, G ;

ROST, M ;

WERTHENBACH, R ;

ZECH, G .

PHYSICS LETTERS B, 1993, 317 (1-2) :233-242

[6] ε′/ε at O(p4) in the chiral expansion [J].

Bertolini, S ;

Eeg, JO ;

Fabbrichesi, M ;

Lashin, EI .

NUCLEAR PHYSICS B, 1998, 514 (1-2) :93-112

[7] STUDYING EPSILON'/EPSILON IN THE CHIRAL QUARK-MODEL - GAMMA(5)-SCHEME INDEPENDENCE AND NLO HADRONIC MATRIX-ELEMENTS [J].

BERTOLINI, S ;

EEG, JO ;

FABBRICHESI, M .

NUCLEAR PHYSICS B, 1995, 449 (1-2) :197-225

[8]

BERTOLINI S, HEPPH9802405

[9]

BOSCH S, HEPPH9904408

[10] THE ANATOMY OF EPSILON(')/EPSILON BEYOND LEADING LOGARITHMS WITH IMPROVED HADRONIC MATRIX-ELEMENTS [J].

BURAS, AJ ;

JAMIN, M ;

LAUTENBACHER, ME .

NUCLEAR PHYSICS B, 1993, 408 (02) :209-285

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