Impact of a light strange-beauty squark on BS mixing and direct search -: art. no. 017701

被引：9

作者：

Arhrib, A ^{[1
]}

Chua, CK ^{[1
]}

Hou, WS ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan

来源：

PHYSICAL REVIEW D | 2002年 / 65卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.65.017701

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

If one has Abelian flavor symmetry, s(R)-b(R) mixing could be near maximal. This can drive a "strange-beauty" squark ((sb) over tilde (1)) to be rather light, but still evade the b-->sgamma constraint. Low-energy constraints imply that all other superpartners are at TeV scale, except for a possibly light neutralino, (chi) over tilde (0)(1). Whether light or heavy, the (sb) over tilde (1) can impact on the B-s system: Deltam(Bs) and the indirect CP phase, even for B-s --> phigamma. A direct search is similar to the usual (b) over tilde-->b (chi) over tilde (0)(1), but existing bounds are weakened by the (sb) over tilde (1)-->s (chi) over tilde (0)(1) possibility. All of these effects could be studied soon at the Fermilab of Tevatron.

引用

页数：4

共 21 条

[1] Search for scalar top and scalar bottom quarks at √s=189 GeV at LEP [J].

Abbiendi, G ;

Ackerstaff, K ;

Alexander, G ;

Allison, J ;

Altekamp, N ;

Anderson, KJ ;

Anderson, S ;

Arcelli, S ;

Asai, S ;

Ashby, SF ;

Axen, D ;

Azuelos, G ;

Ball, AH ;

Barberio, E ;

Barlow, RJ ;

Batley, JR ;

Baumann, S ;

Bechtluft, J ;

Behnke, T ;

Bell, KW ;

Bella, G ;

Bellerive, A ;

Bentvelsen, S ;

Bethke, S ;

Betts, S ;

Biebel, O ;

Biguzzi, A ;

Blobel, V ;

Bloodworth, IJ ;

Bock, P ;

Böhme, J ;

Bonacorsi, D ;

Boutemeur, M ;

Braibant, S ;

Bright-Thomas, P ;

Brigliadori, L ;

Brown, RM ;

Burckhart, HJ ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlton, DG ;

Chrisman, D ;

Ciocca, C ;

Clarke, PEL ;

Clay, E ;

Cohen, I ;

Conboy, JE .

PHYSICS LETTERS B, 1999, 456 (01) :95-106

[2] Search for scalar top and scalar bottom quarks in (p)over-barp collisions at j√s=1.8 TeV [J].

Affolder, T ;

Akimoto, H ;

Akopian, A ;

Albrow, MG ;

Amaral, P ;

Amendolia, SR ;

Amidei, D ;

Anikeev, K ;

Antos, J ;

Apollinari, G ;

Arisawa, T ;

Asakawa, T ;

Ashmanskas, W ;

Atac, M ;

Azfar, F ;

Azzi-Bacchetta, P ;

Bacchetta, N ;

Bailey, MW ;

Bailey, S ;

de Barbaro, P ;

Barbaro-Galtieri, A ;

Barnes, VE ;

Barnett, BA ;

Barone, M ;

Bauer, G ;

Bedeschi, FE ;

Belforte, S ;

Bellettini, G ;

Bellinger, J ;

Benjamin, D ;

Bensinger, J ;

Beretvas, A ;

Berge, JP ;

Berryhill, J ;

Bertolucci, S ;

Bevensee, B ;

Bhatti, A ;

Bigongiari, C ;

Binkley, M ;

Bisello, D ;

Blair, RE ;

Blocker, C ;

Bloom, K ;

Blumenfeld, B ;

Blusk, BS ;

Bocci, A ;

Bodek, A ;

Bokhari, W ;

Bolla, G ;

Bonushkin, Y .

PHYSICAL REVIEW LETTERS, 2000, 84 (25) :5704-5709

[3] QCD corrections to flavor-changing neutral currents in the supersymmetric standard model [J].

Bagger, JA ;

Matchev, KT ;

Zhang, RJ .

PHYSICS LETTERS B, 1997, 412 (1-2) :77-85

[4] 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

[5] THEORETICAL UNCERTAINTIES AND PHENOMENOLOGICAL ASPECTS OF B-]X(S)GAMMA DECAY [J].

BURAS, AJ ;

MISIAK, M ;

MUNZ, M ;

POKORSKI, S .

NUCLEAR PHYSICS B, 1994, 424 (02) :374-398

[6] New two-loop contribution to electric dipole moments in supersymmetric theories [J].

Chang, D ;

Keung, WY ;

Pilaftsis, A .

PHYSICAL REVIEW LETTERS, 1999, 82 (05) :900-903

[7]

CHANKOWSKI PH, 1998, PERSPECTIVES SUPERSY

[8] B-]S-GAMMA DECAY IN SU(2)LXSU(2)RXU(1) EXTENSIONS OF THE STANDARD MODEL [J].

CHO, P ;

MISIAK, M .

PHYSICAL REVIEW D, 1994, 49 (11) :5894-5903

[9]

Chua CK, 1999, PHYS REV D, V60, DOI 10.1103/PhysRevD.60.014003

[10] Phenomenological consequences of right-handed down squark mixings [J].

Chua, CK ;

Hou, WS .

PHYSICAL REVIEW LETTERS, 2001, 86 (13) :2728-2731

← 1 2 3 →