Signatures of Higgs sector CP violation in top quark pair production at proton proton supercolliders

Bernreuther, W.; Brandenburg, A.

doi:10.1016/0370-2693(93)91328-K

Signatures of Higgs sector CP violation in top quark pair production at proton proton supercolliders

W. Bernreuther
(
- Heidelberg U.
)
,
A. Brandenburg
(
- Heidelberg U.
)

May, 1993

17 pages

Published in:

Phys.Lett.B 314 (1993) 104-111

DOI:

10.1016/0370-2693(93)91328-K

Report number:

HD-THEP-93-14

View in:

ADS Abstract Service

reference search97 citations

Citations per year

Abstract: (Elsevier)

In the context of two-Higgs doublet extensions of the standard electroweak theory we investigate CP -violating effects of neutral Higgs bosons ϕ in pp→t t X at LHC and SSC energies. We identify the resulting t t spin-momentum correlations in the partonic production processes gg, q q →t t . An interesting possibility is resonant ϕ production in gluon-gluon fusion and its subsequent decay ϕ→t t which leads to a sizeable spin-spin correlation at the parton level. We propose and compute two triple product correlations with which these spin-spin correlations can be traced in the t t decay products.

p p: inclusive reaction
top: pair production
pair production: top
density matrix
top: decay
decay: top
Higgs particle: neutral particle
Higgs particle: multiplet
multiplet: Higgs particle
doublet: 2

References(41)

Figures(0)

CP Violation in the Renormalizable Theory of Weak Interaction

Makoto Kobayashi
(
- Kyoto U.
)
,
Toshihide Maskawa
(
- Kyoto U.
)

- Prog.Theor.Phys. 49 (1973) 652-657,
- Also in *Lichtenberg, D. B. (Ed.), Rosen, S. P. (Ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 218-223.
•
DOI:
- 10.1143/PTP.49.652

Electroweak baryogenesis in the two doublet model

Neil Turok
(
- Princeton U.
)
,
John Zadrozny
(
- Princeton U.
)

- Nucl.Phys.B 358 (1991) 471-493
•
DOI:
- 10.1016/0550-3213(91)90356-3

Why the baryon asymmetry of the universe is approximately 10**-10

Larry D. McLerran
(
- Minnesota U.
)
,
Mikhail E. Shaposhnikov
(
- Minnesota U. and
- Moscow, INR
)
,
Neil Turok
(
- Princeton U.
)
,
Mikhail B. Voloshin
(
- Minnesota U. and
- Moscow, ITEP
)

- Phys.Lett.B 256 (1991) 451-456
•
DOI:
- 10.1016/0370-2693(91)91794-V

Creating the baryon asymmetry at the electroweak phase transition

Michael Dine
(
- UC, Santa Cruz
)
,
Patrick Huet
(
- City Coll., N.Y.
)
,
Robert L. Singleton, Jr
(
- Stanford U., Phys. Dept.
)
,
Leonard Susskind
(
- Stanford U., Phys. Dept.
)

- Phys.Lett.B 257 (1991) 351-356
•
DOI:
- 10.1016/0370-2693(91)91905-B

Why there is something rather than nothing: Matter from weak interactions

- Nucl.Phys.B 373 (1992) 453-478
•
DOI:
- 10.1016/0550-3213(92)90440-M

CP Nonconservation and Spontaneous Symmetry Breaking

T.D. Lee
(
- Columbia U.
)

- Phys.Rept. 9 (1974) 143-177,
- Also in *Lee, T.D.: Selected papers, vol. 2*, 556-592, and in *Wolfenstein, L. (ed.): CP violation* 124-140
•
DOI:
- 10.1016/0370-1573(74)90020-9

Gauge Theory of CP Violation

Steven Weinberg
(
- Harvard U.
)

- Phys.Rev.Lett. 37 (1976) 657
•
DOI:
- 10.1103/PhysRevLett.37.657

Gauge Theoretical Realization of the Superweak Model of CP Violation

P. Sikivie
(
- Maryland U.
)

- Phys.Lett.B 65 (1976) 141-144
•
DOI:
- 10.1016/0370-2693(76)90015-0

The Higgs Boson Mass and the Strength of CP Violation

A.B. Lahanas
(
- Athens U.
)
,
C.E. Vayonakis
(
- Athens U.
)

- Phys.Rev.D 19 (1979) 2158
•
DOI:
- 10.1103/PhysRevD.19.2158

{CP} Violation in Models With Two and Three Scalar Doublets

- Nucl.Phys.B 259 (1985) 306,
- Nucl. Phys. B259 ( 1985) 306-330 and Muenchen Mpi Phys. Astrophys. - MPI-PAE-PTH 85-04 (85,REC.MAR.) 44 P. (504239)
•
DOI:
- 10.1016/0550-3213(85)90638-8