Probing flavor-changing top-charm-scalar interactions in e(+)e(-) collisions

被引：129

作者：

Atwood, D ^{[1
]}

Reina, L ^{[1
]}

Soni, A ^{[1
]}

机构：

[1] 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.53.1199

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Because of the very large mass of the top quark, probing the flavor-changing top-charm-scalar vertex is clearly very important. Fortunately the largeness of m(t) endows a unique signature to the resulting reaction, i.e., e(+)e(-) --> <t(c)over bar>(<(t)over bar c>),that should be helpful in identification of such events. A two Higgs doublet model, without natural flavor conservation, is used to give an illustrative estimate for the rate for these reactions.

引用

页码：1199 / 1201

页数：3

共 18 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] FLAVOR-CHANGING INTERACTIONS MEDIATED BY SCALARS AT THE WEAK SCALE [J].

ANTARAMIAN, A ;

HALL, LJ ;

RASIN, A .

PHYSICAL REVIEW LETTERS, 1992, 69 (13) :1871-1873

[4]

ATWOOD D, UNPUB

[5] FLAVOR CHANGING Z0 DECAY AND THE TOP QUARK [J].

AXELROD, A .

NUCLEAR PHYSICS B, 1982, 209 (02) :349-371

[6] CHARGED HIGGS BOSONS AND FLAVOR CHANGING Z-DECAYS [J].

BUSCH, C .

NUCLEAR PHYSICS B, 1989, 319 (01) :15-36

[7] 2-LOOP CONTRIBUTIONS OF FLAVOR-CHANGING NEUTRAL HIGGS BOSONS TO MU-]E-GAMMA [J].

CHANG, D ;

HOU, WS ;

KEUNG, WY .

PHYSICAL REVIEW D, 1993, 48 (01) :217-224

[8] MASS-MATRIX ANSATZ AND FLAVOR NONCONSERVATION IN MODELS WITH MULTIPLE HIGGS DOUBLETS [J].

CHENG, TP ;

SHER, M .

PHYSICAL REVIEW D, 1987, 35 (11) :3484-3491

[9] RARE DECAYS OF THE TOP QUARK IN THE STANDARD AND 2-HIGGS-DOUBLET MODELS [J].

EILAM, G ;

HEWETT, JL ;

SONI, A .

PHYSICAL REVIEW D, 1991, 44 (05) :1473-1484

[10] FLAVOR-CHANGING Z DECAYS - A WINDOW TO ULTRAHEAVY QUARKS [J].

GANAPATHI, V ;

WEILER, T ;

LAERMANN, E ;

SCHMITT, I ;

ZERWAS, PM .

PHYSICAL REVIEW D, 1983, 27 (03) :579-587

← 1 2 →