NATURALLY SMALL XS

被引：21

作者：

NIR, Y

机构：

[1] Department of Particle Physics, Weizmann Institute of Science, Rehovot

来源：

PHYSICS LETTERS B | 1994年 / 327卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(94)91533-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Within the Standard Model, x(s) (the mixing parameter in the B(s)-B(s)BAR, system) is constrained to the range 7 less-than-or-equal-to x(s) less-than-or-equal-to 40. We point out that if New Physics contributes significantly to x(d) (the mixing parameter in the B(d)-B(d)BAR system), then 2 less-than-or-equal-to x, less-than-or-equal-to 7 is possible without any fine-tuned cancellations between the Standard Model and the New Physics contributions.

引用

页码：85 / 89

页数：5

共 39 条

[1]

ABACHI S, 1994, FERMILAB94004E PUB

[2] MESON SPECTROSCOPY AND DECAY CONSTANTS WITH WILSON FERMIONS AT BETA = 6.4 [J].

ABADA, A ;

ALLTON, CR ;

BOUCAUD, P ;

CARPENTER, DB ;

CRISAFULLI, M ;

GALAND, J ;

GUSKEN, S ;

MARTINELLI, G ;

PENE, O ;

SACHRAJDA, CT ;

SARNO, R ;

SCHILLING, K ;

SOMMER, R .

NUCLEAR PHYSICS B, 1992, 376 (01) :172-198

[3] A SEARCH FOR RARE B-MESON DECAYS AT THE CERN SPPBARS COLLIDER [J].

ALBAJAR, C ;

Albrow, MG ;

Allkofer, OC ;

Ankoviak, K ;

Apsimon, R ;

Aubert, B ;

Bacci, C ;

Bartha, S ;

Bauer, G ;

Bettini, A ;

Bezaguet, A ;

Biddulph, P ;

Bohn, H ;

Bohrer, A ;

Bonino, R ;

Bos, K ;

Botlo, M ;

Brockhausen, D ;

Buchanan, C ;

Buschbeck, B ;

Busetto, G ;

Caner, A ;

Casoli, P ;

Castilla-Valdez, H ;

Cavanna, F ;

Cennini, P ;

Centro, S ;

Ceradini, F ;

Ciapetti, G ;

Cittolin, S ;

Clayton, E ;

Cline, D ;

Colas, J ;

Conte, R ;

Coughlan, JA ;

Dau, D ;

Daum, C ;

Della Negra, M ;

Demoulin, M ;

Denegri, D ;

Dibon, H ;

DiCiaccio, A ;

Hedo, FJD ;

Dobrzynski, L ;

Dorenbosch, J ;

Dowell, JD ;

Drijard, D ;

Eggert, K ;

Eisenhandler, EF ;

Ellis, N .

PHYSICS LETTERS B, 1991, 262 (01) :163-170

[4] PROSPECTS FOR MEASURING THE B(S)(0)-(B)OVER-BAR(S)(0) MIXING RATIO-X(S) [J].

ALI, A ;

LONDON, D .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1993, 19 (08) :1069-1126

[5]

ALI A, 1993, DESY93022

[6] EVIDENCE FOR PENGUIN-DIAGRAM DECAYS - 1ST OBSERVATION OF B -] K-ASTERISK(892)GAMMA [J].

AMMAR, R ;

BALL, S ;

BARINGER, P ;

COPPAGE, D ;

COPTY, N ;

DAVIS, R ;

HANCOCK, N ;

KELLY, M ;

KWAK, N ;

LAM, H ;

KUBOTA, Y ;

LATTERY, M ;

NELSON, JK ;

PATTON, S ;

PERTICONE, D ;

POLING, R ;

SAVINOV, V ;

SCHRENK, S ;

WANG, R ;

ALAM, MS ;

KIM, IJ ;

NEMATI, B ;

ONEILL, JJ ;

SEVERINI, H ;

SUN, CR ;

ZOELLER, MM ;

CRAWFORD, G ;

DAUBENMEIR, M ;

FULTON, R ;

FUJINO, D ;

GAN, KK ;

HONSCHEID, K ;

KAGAN, H ;

KASS, R ;

LEE, J ;

MALCHOW, R ;

MORROW, F ;

SKOVPEN, Y ;

SUNG, M ;

WHITE, C ;

WHITMORE, J ;

WILSON, P ;

BUTLER, F ;

FU, X ;

KALBFLEISCH, G ;

LAMBRECHT, M ;

ROSS, WR ;

SKUBIC, P ;

SNOW, J ;

WANG, PL .

PHYSICAL REVIEW LETTERS, 1993, 71 (05) :674-678

[7] 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

[8] PROPERTIES OF ORBITALLY EXCITED HEAVY-LIGHT (Q(Q)OVER-BAR) MESONS [J].

EICHTEN, EJ ;

HILL, CT ;

QUIGG, C .

PHYSICAL REVIEW LETTERS, 1993, 71 (25) :4116-4119

[9] B0-B0BAR MIXING AND RELATED CP-VIOLATION IN SUPERSYMMETRIC MODELS [J].

BERTOLINI, S ;

BORZUMATI, F ;

MASIERO, A .

PHYSICS LETTERS B, 1987, 194 (04) :545-550

[10] EFFECTS OF SUPERGRAVITY-INDUCED ELECTROWEAK BREAKING ON RARE B-DECAYS AND MIXINGS [J].

BERTOLINI, S ;

BORZUMATI, F ;

MASIERO, A ;

RIDOLFI, G .

NUCLEAR PHYSICS B, 1991, 353 (03) :591-649

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