New physics effects on triple product correlations in Lambda(b) decays

We adopt an effective-lagrangian approach to compute the new-physics contributions to T-violating triple-product correlations in charmless Lambda_b decays. We use factorization and work to leading order in the heavy-quark expansion. We find that the standard-model (SM) predictions for such correlations can be significantly modified. For example, triple products which are expected to vanish in the SM can be enormous (~50%) in the presence of new physics. By measuring triple products in a variety of Lambda_b decays, one can diagnose which new-physics operators are or are not present. Our general results can be applied to any specific model of new physics by simply calculating which operators appear in that model.

11.30.Er
13.30.Eg
Lambda/b0: hadronic decay
Lambda/b0: decay modes
final state: (0charm)
pseudoscalar meson
vector meson: polarization
Lambda/b0: polarization
time reversal: violation
correlation

References(25)

Figures(0)

Improved measurement of the CP-violating asymmetry amplitude $\sin2\beta$

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Frascati Phys.Ser. 27 (2002) 515-538
•
e-Print:
- hep-ex/0203007

Angular Correlations in the Decay $B \to V V$ and {CP} Violation

German Valencia
(
- Brookhaven
)

- Phys.Rev.D 39 (1989) 3339
•
DOI:
- 10.1103/PhysRevD.39.3339

$T$ odd triple product correlations in hadronic $b$ decays

Wafia Bensalem
(
- Montreal U.
)
,
David London
(
- Montreal U.
)

- Phys.Rev.D 64 (2001) 116003
•
e-Print:
- hep-ph/0005018
•
DOI:
- 10.1103/PhysRevD.64.116003

T violating triple product correlations in charmless Lambda(b) decays

- Phys.Lett.B 538 (2002) 309-320
•
e-Print:
- hep-ph/0205009
•
DOI:
- 10.1016/S0370-2693(02)02028-2

New physics in CP asymmetries and rare $B$ decays

Michael Gronau
(
- Technion
)
,
David London
(
- McGill U. and
- Montreal U.
)

- Phys.Rev.D 55 (1997) 2845-2861
•
e-Print:
- hep-ph/9608430
•
DOI:
- 10.1103/PhysRevD.55.2845

B+L violating couplings in the minimal supersymmetric Standard Model

Ian Hinchliffe
(
- LBL, Berkeley
)
,
Thomas Kaeding
(
- LBL, Berkeley
)

- Phys.Rev.D 47 (1993) 279-284
•
DOI:
- 10.1103/PhysRevD.47.279

New bounds on R-parity violating couplings

Carl E. Carlson
(
- William-Mary Coll.
)
,
Probir Roy
(
- Tata Inst.
)
,
Marc Sher
(
- William-Mary Coll.
)

- Phys.Lett.B 357 (1995) 99-104
•
e-Print:
- hep-ph/9506328
•
DOI:
- 10.1016/0370-2693(95)00895-R

Upper bound on all products of R-parity violating couplings lambda-prime and lambda-prime-prime from proton decay

Alexei Yu. Smirnov
(
- ICTP, Trieste and
- Moscow, INR
)
,
Francesco Vissani
(
- ICTP, Trieste and
- INFN, Trieste
)

- Phys.Lett.B 380 (1996) 317-323
•
e-Print:
- hep-ph/9601387
•
DOI:
- 10.1016/0370-2693(96)00495-9

A Brief review of R-parity violating couplings

Gautam Bhattacharyya
(
- Pisa U. and
- INFN, Pisa
)

- ,
- In *Tegernsee 1997, Beyond the desert 1997* 194-201
•
e-Print:
- hep-ph/9709395

Report of the group on the R-parity violation

et al.

e-Print:
- hep-ph/9810232

Bounds on R-parity violating couplings at the weak scale and at the GUT scale

B.C. Allanach
(
- Cambridge U., DAMTP
)
,
A. Dedes
(
- Rutherford
)
,
Herbert K. Dreiner
(
- Rutherford
)

- Phys.Rev.D 60 (1999) 075014
•
e-Print:
- hep-ph/9906209
•
DOI:
- 10.1103/PhysRevD.60.075014

Constraining R parity violating couplings from B ---> PP decays using QCD improved factorization method

- JHEP 07 (2002) 067
•
e-Print:
- hep-ph/0111106
•
DOI:
- 10.1088/1126-6708/2002/07/067

R-parity violating supersymmetry effects and signals in single top production at the Tevatron

A. Datta
(
- Iowa State U.
)
,
Jin Min Yang
(
- Iowa State U.
)
,
Bing-Lin Young
(
- Iowa State U.
)
,
X. Zhang
(
- Beijing, Inst. High Energy Phys.
)

- Phys.Rev.D 56 (1997) 3107-3113
•
e-Print:
- hep-ph/9704257
•
DOI:
- 10.1103/PhysRevD.56.3107

$Z$ Mediated Flavor Changing Neutral Currents and Their Implications for {CP} Asymmetries in \B^0 Decays

Yosef Nir
(
- SLAC
)
,
Dennis J. Silverman
(
- UC, Irvine
)

- Phys.Rev.D 42 (1990) 1477-1484
•
DOI:
- 10.1103/PhysRevD.42.1477

Evidence for the electroweak penguin decay $B \to X_{s} \ell^{+} \ell^{-}$

Belle

Collaboration

•

Kazuo Abe
(
- KEK, Tsukuba
)

et al.

e-Print:
- hep-ex/0107072

$Z^\prime$ , new fermions and flavor changing processes. Constraints on E(6) models from $\mu \to e e e$

Enrico Nardi
(
- Michigan U.
)

- Phys.Rev.D 48 (1993) 1240-1247
•
e-Print:
- hep-ph/9209223
•
DOI:
- 10.1103/PhysRevD.48.1240

$\mu$ - $e$ conversion in nuclei and $Z^\prime$ physics

- Nucl.Phys.B 409 (1993) 69-86,
- Nucl. Phys. B409 (1993) 69-86 and Michigan Univ. Ann Arbor - UM-TH-93-08 (93/05,rec.Jun.) 26 p
•
e-Print:
- hep-ph/9306251
•
DOI:
- 10.1016/0550-3213(93)90446-V

Flavor changing neutral currents and leptophobic $Z^\prime$ gauge bosons

Karine Leroux
(
- Montreal U.
)
,
David London
(
- Montreal U.
)

- Phys.Lett.B 526 (2002) 97-103
•
e-Print:
- hep-ph/0111246
•
DOI:
- 10.1016/S0370-2693(01)01489-7

- Nucl.Phys.B 465 753

New limit on inclusive $B \to X_{s}$ anti-neutrino neutrino decay and constraints on new physics

- Nucl.Phys.B 465 (1996) 369-398,
- Nucl.Phys.B 480 (1996) 753-754 (erratum)
•
e-Print:
- hep-ph/9510378
•
DOI:
- 10.1016/0550-3213(96)00051-X

Review of particle physics. Particle Data Group

et al.

- Phys.Rev.D 66 (2002) 010001
•
DOI:
- 10.1103/PhysRevD.66.010001

Lifetimes of heavy baryons revisited

Hai-Yang Cheng
(
- Taiwan, Inst. Phys.
)

- Phys.Lett.B 289 (1992) 455-462,
- Phys. Lett. B289 (1992) 455-462 and Taipei Inst. Phys. Acad. Sin. - IP-ASTP-92-01 (92/06,rec.Jul.) 13 p. (211370)
•
DOI:
- 10.1016/0370-2693(92)91248-8

Parity Violation and Flavor Selection Rules in Charmed Baryon Decays

- Phys.Rev.D 42 (1990) 3746-3754
•
DOI:
- 10.1103/PhysRevD.42.3746

Probing for new physics in polarized $\Lambda_b$ decays at the $Z$

Gudrun Hiller
(
- SLAC
)
,
Alex Kagan
(
- Cincinnati U.
)

- Phys.Rev.D 65 (2002) 074038
•
e-Print:
- hep-ph/0108074
•
DOI:
- 10.1103/PhysRevD.65.074038

Report of Snowmass 2001 Working Group E2: Electron - Positron Colliders from the $\phi$ to the Z

Zhen-guo Zhao
(
- Beijing, Inst. High Energy Phys.
)
,
Gerald Eigen
(
- Bergen U.
)
,
Gustavo Burdman
(
- Boston U.
)
,
William Marciano
(
- Brookhaven
)
,
David Hitlin
(
- Caltech
)

et al.

- eConf C010630 (2001) E2001
•
e-Print:
- hep-ex/0201047