Top flavour-changing neutral coupling signals at a linear collider

被引：46

作者：

Aguilar-Saavedra, JA ^{[1
]}

机构：

[1] Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain

来源：

PHYSICS LETTERS B | 2001年 / 502卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(01)00162-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present an analysis of the sensitivity of the TESLA e(+)e(-) collider to top flavour-changing neutral couplings to the Z boson and photon. We consider the cases without beam polarization, with only e(-) polarization and with e(-) and e(+) polarization, showing that the use of the latter substantially enhances the sensitivity to discover or bound these vertices. For some of the couplings the expected LHC limits could be improved up to an order of magnitude for equal running times. (C) 2001 Published by Elsevier Science B.V.

引用

页码：115 / 124

页数：10

共 32 条

[1] Search for flavor-changing neutral current decays of the top quark in p(p)over-bar collisions at √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 ;

Azzi-Bacchetta, P ;

Bacchetta, N ;

Badgett, W ;

Bagdasarov, S ;

Bailey, MW ;

Bao, J ;

de Barbaro, P ;

Barbaro-Galtieri, 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 ;

Bettelli, S ;

Bevensee, B ;

Bhatti, A ;

Biery, K ;

Binkley, M ;

Bisello, D ;

Blair, RE ;

Blocker, C ;

Bodek, A ;

Bokhari, W .

PHYSICAL REVIEW LETTERS, 1998, 80 (12) :2525-2530

[2] Computation of confidence intervals for Poisson processes [J].

Aguilar-Saavedra, JA .

COMPUTER PHYSICS COMMUNICATIONS, 2000, 130 (1-2) :190-203

[3] Probing top flavour-changing neutral scalar couplings at the CERN LHC [J].

Aguilar-Saavedra, JA ;

Branco, GC .

PHYSICS LETTERS B, 2000, 495 (3-4) :347-356

[4]

*ALEPH COLL, IN PRESS PHYS LETT B

[5] Phenomenology of two Higgs doublet models with flavor-changing neutral currents [J].

Atwood, D ;

Reina, L ;

Soni, A .

PHYSICAL REVIEW D, 1997, 55 (05) :3156-3176

[6] Flavor-changing single top quark production channels at e+e- colliders in the effective Lagrangian description -: art. no. 094016 [J].

Bar-Shalom, S ;

Wudka, J .

PHYSICAL REVIEW D, 1999, 60 (09)

[7]

BEJAR S, HEPPH0011091

[8]

BENEKE M, WORKSH STAND MOD PHY

[9]

BERTOLUCCI S, 1999, 5 WORKSH 2 ECFA DESY

[10]

Cowan G., 1998, Statistical Data Analysis

← 1 2 3 4 →