Exclusive Λb → Λl+l- decay beyond standard model

被引：47

作者：

Aliev, TM ^{[1
]}

Özpineci, A

Savci, M

机构：

[1] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey

[2] Abdus Salam Int Ctr Theoret Phys, I-34100 Trieste, Italy

来源：

NUCLEAR PHYSICS B | 2003年 / 649卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(02)00964-1

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Using the most general, model independent form of the effective Hamiltonian, the exclusive rare baryonic Lambdab --> Lambdal(+)l(-)(l = mu, tau) decay is analyzed. We study the sensitivity of the branching ratio and lepton forward-backward asymmetry to the new Wilson coefficients. It is shown that these physical quantities are quite sensitive to the new Wilson coefficients. Determination of the position of zero value of the forward-backward asymmetry can serve as a useful tool for establishing new physics beyond the standard model, as well as fixing the sign of the new Wilson coefficients. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：168 / 188

页数：21

共 44 条

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

BEENAKKER, W ;

HOPKER, R ;

SPIRA, M ;

ZERWAS, PM .

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

[2] TOWARDS A MODEL-INDEPENDENT ANALYSIS OF RARE B-DECAYS [J].

ALI, A ;

GIUDICE, GF ;

MANNEL, T .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 67 (03) :417-432

[3] FORWARD BACKWARD ASYMMETRY OF DILEPTON ANGULAR-DISTRIBUTION IN THE DECAY B-]SL+L- [J].

ALI, A ;

MANNEL, T ;

MOROZUMI, T .

PHYSICS LETTERS B, 1991, 273 (04) :505-512

[4]

Aliev TM, 2000, PHYS REV D, V62, DOI 10.1103/PhysRevD.62.014026

[5]

Aliev TM, 2001, PHYS REV D, V64, DOI 10.1103/PhysRevD.64.055007

[6] Rare B->K*l(+)l(-) decay in light cone QCD [J].

Aliev, TM ;

Savci, M ;

Ozpineci, A .

PHYSICAL REVIEW D, 1997, 56 (07) :4260-4267

[7] General analysis of lepton polarizations in rare B → K*l+l- decay beyond the standard model [J].

Aliev, TM ;

Çakmak, MK ;

Savci, M .

NUCLEAR PHYSICS B, 2001, 607 (1-2) :305-325

[8] Exclusive B → K*l+l- decay with polarized K* and new physics effects [J].

Aliev, TM ;

Özpineci, A ;

Savci, M .

PHYSICS LETTERS B, 2001, 511 (01) :49-58

[9] Rare B→K*ν(ν)over-bar decay beyond standard model [J].

Aliev, TM ;

Özpineci, A ;

Savci, M .

PHYSICS LETTERS B, 2001, 506 (1-2) :77-84

[10] Exclusive Λb→Λl+l- decay in a two-Higgs-doublet model [J].

Aliev, TM ;

Savci, M .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2000, 26 (07) :997-1009

← 1 2 3 4 5 →