CP-VIOLATING ASYMMETRIES IN E(+)E(-)-]T(T)OVER-BAR WITH LONGITUDINALLY POLARIZED ELECTRONS

被引：43

作者：

POULOSE, P

RINDANI, SD

机构：

[1] Theory Group, Physical Research Laboratory, Ahmedabad, 380 009, Navrangpura

来源：

PHYSICS LETTERS B | 1995年 / 349卷 / 03期

关键词：

D O I：

10.1016/0370-2693(95)00193-O

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

New CP-violating asymmetries of decay leptons in e(+)e(-) --> t ($) over bar t, arising from electric and weak dipole couplings of t ($) over bar t to gamma and Z, are examined in the case of unpolarized and longitudinally polarized electrons. The new asymmetries measured together with the old ones can help to determine independently the real and imaginary parts of the electric as well as weak dipole couplings. Longitudinal beam polarization, if present, obviates the need for the simultaneous measurement of more than one asymmetry, and enhances considerably the sensitivity to the CP-violating parameters. Numerical results are presented for the Next Linear Collider with root s=500 GeV and integral Ldt=10 fb(-1).

引用

页码：379 / 385

页数：7

共 28 条

[1] EVIDENCE FOR TOP-QUARK PRODUCTION IN P(OVER-BAR)-P COLLISIONS AT ROOT=1.8-TEV [J].

ABE, F ;

ALBROW, MG ;

AMENDOLIA, SR ;

AMIDEI, D ;

ANTOS, J ;

ANWAYWIESE, C ;

APOLLINARI, G ;

ARETI, H ;

AUCHINCLOSS, P ;

AUSTERN, M ;

AZFAR, F ;

AZZI, P ;

BACCHETTA, N ;

BADGETT, W ;

BAILEY, MW ;

BAO, J ;

DEBARBARO, P ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BARNETT, BA ;

BARTALINI, P ;

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 ;

BERTOLUCCI, S ;

BHATTI, A ;

BIERY, K ;

BINKLEY, M ;

BIRD, F ;

BISELLO, D ;

BLAIR, RE ;

BLOCKER, C ;

BODEK, A ;

BOLOGNESI, V ;

BORTOLETTO, D ;

BOSWELL, C ;

BOULOS, T ;

BRANDENBURG, G ;

BUCKLEYGEER, E ;

BUDD, HS .

PHYSICAL REVIEW LETTERS, 1994, 73 (02) :225-231

[2]

ABE F, IN PRESS PHYS REV D

[3]

ARENS T, 1994, PITHA9414 AACH PREPR

[4] ANALYSIS FOR MAGNETIC-MOMENT AND ELECTRIC-DIPOLE MOMENT FORM-FACTORS OF THE TOP QUARK VIA E+E-]TTBAR [J].

ATWOOD, D ;

SONI, A .

PHYSICAL REVIEW D, 1992, 45 (07) :2405-2413

[5] SIGNATURES OF HIGGS SECTOR CP VIOLATION IN TOP-QUARK PAIR PRODUCTION AT PROTON-PROTON SUPERCOLLIDERS [J].

BERNREUTHER, W ;

BRANDENBURG, A .

PHYSICS LETTERS B, 1993, 314 (01) :104-111

[6] TRACING CP VIOLATION IN THE PRODUCTION OF TOP-QUARK PAIRS BY MULTIPLE TEV PROTON-PROTON COLLISIONS [J].

BERNREUTHER, W ;

BRANDENBURG, A .

PHYSICAL REVIEW D, 1994, 49 (09) :4481-4492

[7] ANGULAR-CORRELATIONS AND DISTRIBUTIONS FOR SEARCHES OF CP VIOLATION IN TOP QUARK PRODUCTION AND DECAY [J].

BERNREUTHER, W ;

NACHTMANN, O ;

OVERMANN, P ;

SCHRODER, T .

NUCLEAR PHYSICS B, 1992, 388 (01) :53-80

[8] CP-VIOLATING DIPOLE FORM-FACTORS IN E+E--](T)BAR-T [J].

BERNREUTHER, W ;

SCHRODER, T ;

PHAM, TN .

PHYSICS LETTERS B, 1992, 279 (3-4) :389-396

[9]

BERNREUTHER W, 1993, HDTHEP9311 HEID PREP

[10] PRODUCTION AND DECAY PROPERTIES OF ULTRA-HEAVY QUARKS [J].

BIGI, I ;

DOKSHITZER, Y ;

KHOZE, V ;

KUHN, J ;

ZERWAS, P .

PHYSICS LETTERS B, 1986, 181 (1-2) :157-163

← 1 2 3 →