CP asymmetry for inclusive decay B→Xd+γ in the minimal supersymmetric standard model

被引：20

作者：

Asatryan, HH ^{[1
]}

Asatrian, HU ^{[1
]}

机构：

[1] Yerevan Phys Inst, Yerevan 375036, Armenia

来源：

PHYSICS LETTERS B | 1999年 / 460卷 / 1-2期

关键词：

CP violation; supersymmetry; B; radiative decay;

D O I：

10.1016/S0370-2693(99)00778-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the inclusive rare decay B --> X-d + gamma in the supergravity inspired Minimal Supersymmetric Standard Model and compute the CP-asymmetry in the decay rates. We show that there exist two phenomenologically acceptable sets of SUSY parameters: for one set the CP-asymmetry has the same (positive) sign as in the Standard Model and lies in the range (5-45)% while for the other set it is negative with values within -(2-21)%. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：148 / 156

页数：9

共 54 条

[1] Search for chargino and neutralino production at √s=181-184 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 ;

Bartoldus, R ;

Batley, JR ;

Baumann, S ;

Bechtluft, J ;

Behnke, T ;

Bell, KW ;

Bella, G ;

Bellerive, A ;

Bentvelsen, S ;

Bethke, S ;

Betts, S ;

Biebel, O ;

Biguzzi, A ;

Bird, SD ;

Blobel, V ;

Bloodworth, IJ ;

Bobinski, M ;

Bock, P ;

Böhme, J ;

Bonacorsi, D ;

Boutemeur, M ;

Braibant, S ;

Bright-Thomas, P ;

Brigliadori, L ;

Brown, RM ;

Burckhart, HJ ;

Burgard, C ;

Bürgin, R ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlton, DG ;

Chrisman, D .

EUROPEAN PHYSICAL JOURNAL C, 1999, 8 (02) :255-272

[2] Search for scalar top and scalar bottom quarks at √s = 183 GeV at LEP [J].

Ackerstaff, K ;

Alexander, G ;

Allison, J ;

Altekamp, N ;

Anderson, KJ ;

Anderson, S ;

Arcelli, S ;

Asai, S ;

Axen, D ;

Azuelos, G ;

Ball, AH ;

Barberio, E ;

Barlow, RJ ;

Bartoldus, R ;

Batley, JR ;

Baumann, S ;

Bechtluft, J ;

Beeston, C ;

Behnke, T ;

Bell, AN ;

Bell, KW ;

Bella, G ;

Bentvelsen, S ;

Bethke, S ;

Biebel, O ;

Biguzzi, A ;

Bird, SD ;

Blobel, V ;

Bloodworth, IJ ;

Bloomer, JE ;

Bobinski, M ;

Bock, P ;

Bonacorsi, D ;

Boutemeur, M ;

Bouwens, BT ;

Braibant, S ;

Brigliadori, L ;

Brown, RM ;

Burckhart, HJ ;

Burgard, C ;

Bürgin, R ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlton, DG ;

Chrisman, D ;

Clarke, PEL ;

Cohen, I .

EUROPEAN PHYSICAL JOURNAL C, 1999, 6 (02) :225-238

[3] O(ALPHA(S)) CALCULATION OF THE DECAYS B-]S+GAMMA AND B-]S+G [J].

ADEL, K ;

YAO, YP .

PHYSICAL REVIEW D, 1994, 49 (09) :4945-4948

[4] SQUARK PRODUCTION AT THE FERMILAB TEVATRON [J].

BEENAKKER, W ;

HOPKER, R ;

SPIRA, M ;

ZERWAS, PM .

PHYSICAL REVIEW LETTERS, 1995, 74 (15) :2905-2908

[5] Inclusive decay rate for B→Xd+γ in next-to-leading logarithmic order and CP asymmetry in the standard model [J].

Ali, A ;

Asatrian, H ;

Greub, C .

PHYSICS LETTERS B, 1998, 429 (1-2) :87-98

[6] PHOTON ENERGY-SPECTRUM IN B-]X(S)+GAMMA AND COMPARISON WITH DATA [J].

ALI, A ;

GREUB, C .

PHYSICS LETTERS B, 1995, 361 (1-4) :146-154

[7] 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

[8]

AOKI M, HEPPH9811251

[9] CP violation in the decay b->s gamma in the SU(2)(L)xSU(2)(R)xU(1) model [J].

Asatrian, HM ;

Ioannissian, AN .

PHYSICAL REVIEW D, 1996, 54 (09) :5642-5646

[10] CP-violation in b quark radiative inclusive decays [J].

Asatrian, HM ;

Yeghiyan, GK ;

Ioannissian, AN .

PHYSICS LETTERS B, 1997, 399 (3-4) :303-311

← 1 2 3 4 5 6 →