Large tree-level CP violation in e(+)e(-)->t(t)over-barH(0) in the two-Higgs-doublet model

被引：33

作者：

BarShalom, S

Atwood, D

Eilam, G

Mendel, RR

Soni, A

机构：

[1] STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305

[2] BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973

来源：

PHYSICAL REVIEW D | 1996年 / 53卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.53.1162

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We find a large CP violation effect within the two-Higgs-doublet model for the reaction e(+)e(-) --> <t(t)over barH(0)> at future linear colliders. The CP asymmetry arises already at the tree level as a result of interference between diagrams with H-0 emission from t (and (t) over bar and its emission from a Z(0) and can be about 10-20 %. In the best case one needs a few hundred <t(t)over barH(0)> events to observe CP violation at the 3 sigma level.

引用

页码：1162 / 1167

页数：6

共 20 条

[1] OBSERVATION OF THE TOP-QUARK [J].

ABACHI, S ;

ABBOTT, B ;

ABOLINS, M ;

ACHARYA, BS ;

ADAM, I ;

ADAMS, DL ;

ADAMS, M ;

AHN, S ;

AIHARA, H ;

ALITTI, J ;

ALVAREZ, G ;

ALVES, GA ;

AMIDI, E ;

AMOS, N ;

ANDERSON, EW ;

ARONSON, SH ;

ASTUR, R ;

AVERY, RE ;

BADEN, A ;

BALAMURALI, V ;

BALDERSTON, J ;

BALDIN, B ;

BANTLY, J ;

BARTLETT, JF ;

BAZIZI, K ;

BENDICH, J ;

BERI, SB ;

BERTRAM, I ;

BEZZUBOV, VA ;

BHAT, PC ;

BHATNAGAR, V ;

BHATTACHARJEE, M ;

BISCHOFF, A ;

BISWAS, N ;

BLAZEY, G ;

BLESSING, S ;

BOEHNLEIN, A ;

BOJKO, NI ;

BORCHERDING, F ;

BORDERS, J ;

BOSWELL, C ;

BRANDT, A ;

BROCK, R ;

BROSS, A ;

BUCHHOLZ, D ;

BURTOVOI, VS ;

BUTLER, JM ;

CASEY, D ;

CASTILLAVALDEZ, H ;

CHAKRABORTY, D .

PHYSICAL REVIEW LETTERS, 1995, 74 (14) :2632-2637

[2] NEARBY DOORWAY STATES, PARITY DOUBLETS, AND PARITY MIXING IN COMPOUND NUCLEAR-STATES [J].

AUERBACH, N ;

BOWMAN, JD ;

SPEVAK, V .

PHYSICAL REVIEW LETTERS, 1995, 74 (14) :2638-2641

[3]

ATWOOD D, 1992, PHYS REV D, V45, P45

[4]

BARSHALOM S, IN PRESS Z PHYS C

[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] 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

[7]

COHEN AG, 1993, ANNU REV NUCL PART S, V43, P27

[8]

DJOUADI A, 1992, Z PHYS C, V54, P225

[9] 2 SCALAR DOUBLET MODELS WITH SOFTLY BROKEN SYMMETRIES [J].

FROGGATT, CD ;

MOORHOUSE, RG ;

KNOWLES, IG .

NUCLEAR PHYSICS B, 1992, 386 (01) :63-114

[10] BREMSSTRAHLUNG PRODUCTION OF HIGGS BOSONS IN E+E- COLLISIONS [J].

GAEMERS, KJF ;

GOUNARIS, GJ .

PHYSICS LETTERS B, 1978, 77 (4-5) :379-382

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