Cross-sections for multiparticle final states at a linear collider

In this paper total cross sections for signals and backgrounds of top- and Higgs-production channels in electron-positron collisions at a future linear collider are presented. All channels considered are characterized by the emergence of six-particle final states. The calculation takes into account the full set of tree-level amplitudes in each process. Two multi-purpose parton level generators, HELAC/PHEGAS and AMEGIC++ are used, their results are found to be in perfect agreement.

Note:

8 pages

electron positron: annihilation
top: pair production
top: decay
Higgs particle: electroproduction
Higgs particle: decay
fermion: multiple production
final state: (6fermion)
Feynman graph
channel cross section
background

References(32)

Figures(0)

HELAC: A Package to compute electroweak helicity amplitudes

- Comput.Phys.Commun. 132 (2000) 306-315
•
e-Print:
- hep-ph/0002082
•
DOI:
- 10.1016/S0010-4655(00)00151-X

PHEGAS: A Phase space generator for automatic cross-section computation

Costas G. Papadopoulos
(
- Democritos Nucl. Res. Ctr.
)

- Comput.Phys.Commun. 137 (2001) 247-254
•
e-Print:
- hep-ph/0007335
•
DOI:
- 10.1016/S0010-4655(01)00163-1

AMEGIC++ 1.0: A Matrix element generator in C++

F. Krauss
(
- Cambridge U.
)
,
R. Kuhn
(
- Dresden, Max Planck Inst. and
- Dresden, Tech. U.
)
,
G. Soff
(
- Dresden, Tech. U.
)

- JHEP 02 (2002) 044
•
e-Print:
- hep-ph/0109036
•
DOI:
- 10.1088/1126-6708/2002/02/044

LUSIFER: A LUcid approach to six FERmion production

Stefan Dittmaier
(
- DESY
)
,
Markus Roth
(
- Karlsruhe U.
)

- Nucl.Phys.B 642 (2002) 307-343
•
e-Print:
- hep-ph/0206070
•
DOI:
- 10.1016/S0550-3213(02)00640-5

eett6f V. 1.0: A Program for top quark pair production and decay into six fermions at linear colliders

Karol Kolodziej
(
- Silesia U.
)

- Comput.Phys.Commun. 151 (2003) 339-353
•
e-Print:
- hep-ph/0210199
•
DOI:
- 10.1016/S0010-4655(02)00738-5

All electroweak four fermion processes in electron - positron collisions

- Nucl.Phys.B 424 (1994) 308-342
•
e-Print:
- hep-ph/9404313
•
DOI:
- 10.1016/0550-3213(94)90297-6

Weight optimization in multichannel Monte Carlo

Ronald Kleiss
(
- NIKHEF, Amsterdam
)
,
Roberto Pittau
(
- Leiden U.
)

- Comput.Phys.Commun. 83 (1994) 141-146
•
e-Print:
- hep-ph/9405257
•
DOI:
- 10.1016/0010-4655(94)90043-4

Six fermion production and Higgs boson physics at future e+ e- colliders

Fabrizio Gangemi
(
- Pavia U. and
- INFN, Pavia
)
,
Guido Montagna
(
- Pavia U. and
- INFN, Pavia
)
,
Mauro Moretti
(
- CERN and
- Ferrara U. and
- INFN, Ferrara
)
,
Oreste Nicrosini
(
- CERN and
- Pavia U. and
- INFN, Pavia
)
,
Fulvio Piccinini
(
- CERN and
- Pavia U. and
- INFN, Pavia
)

- Eur.Phys.J.C 9 (1999) 31-41
•
e-Print:
- hep-ph/9811437
•
DOI:
- 10.1007/s100520050510

Top quark physics in six quark final states at the next linear collider

F. Gangemi
(
- Pavia U. and
- INFN, Pavia
)
,
G. Montagna
(
- Pavia U. and
- INFN, Pavia
)
,
M. Moretti
(
- CERN and
- Ferrara U. and
- INFN, Ferrara
)
,
O. Nicrosini
(
- INFN, Pavia and
- Pavia U.
)
,
F. Piccinini
(
- INFN, Pavia and
- Pavia U.
)

- Nucl.Phys.B 559 (1999) 3-16
•
e-Print:
- hep-ph/9905271
•
DOI:
- 10.1016/S0550-3213(99)00450-2

Anomalous quartic couplings in six fermion processes at the linear collider

Fabrizio Gangemi
(
- Pavia U. and
- INFN, Pavia
)

e-Print:
- hep-ph/0002142

O'Mega: An Optimizing matrix element generator

Mauro Moretti
(
- Ferrara U. and
- INFN, Ferrara
)
,
Thorsten Ohl
(
- Darmstadt, Tech. Hochsch.
)
,
Jurgen Reuter
(
- Darmstadt, Tech. Hochsch.
)

- In *2nd ECFA/DESY Study 1998-2001* 1981-2009
•
e-Print:
- hep-ph/0102195

Automatic generation of tree level helicity amplitudes

T. Stelzer
(
- Durham U.
)
,
W.F. Long
(
- Wisconsin U., Madison
)

- Comput.Phys.Commun. 81 (1994) 357-371
•
e-Print:
- hep-ph/9401258
•
DOI:
- 10.1016/0010-4655(94)90084-1

MadEvent: Automatic event generation with MadGraph

Fabio Maltoni
(
- Illinois U., Urbana
)
,
Tim Stelzer
(
- Illinois U., Urbana
)

- JHEP 02 (2003) 027
•
e-Print:
- hep-ph/0208156
•
DOI:
- 10.1088/1126-6708/2003/02/027

An algorithm to compute Born scattering amplitudes without Feynman graphs

Francesco Caravaglios
(
- Oxford U.
)
,
Mauro Moretti
(
- Southampton U.
)

- Phys.Lett.B 358 (1995) 332-338
•
e-Print:
- hep-ph/9507237
•
DOI:
- 10.1016/0370-2693(95)00971-M

E+ e- into four fermions + gamma with ALPHA

Francesco Caravaglios
(
- Oxford U.
)
,
M. Moretti
(
- Oxford U.
)

- Z.Phys.C 74 (1997) 291-296
•
e-Print:
- hep-ph/9604316
•
DOI:
- 10.1007/s002880050390

Vegas revisited: Adaptive Monte Carlo integration beyond factorization

Thorsten Ohl
(
- Darmstadt, Tech. Hochsch.
)

- Comput.Phys.Commun. 120 (1999) 13-19
•
e-Print:
- hep-ph/9806432
•
DOI:
- 10.1016/S0010-4655(99)00209-X

Reports of the Working Groups on Precision Calculations for LEP2 Physics: Proceedings. Four fermion production in electron positron collisions

Martin W. Grunewald
(
- Humboldt U., Berlin
)
,
Giampiero Passarino
(
- Turin U. and
- INFN, Turin
)
,
E. Accomando
(
- PSI, Villigen
)
,
A. Ballestrero
(
- INFN, Turin
)
,
P. Bambade
(
- Orsay, LAL and
- CERN
)

et al.

- In *Geneva 1999/2000, Reports of the working groups on precision calculation for LEP2 physics* 1-135
•
e-Print:
- hep-ph/0005309

TESLA: The Superconducting electron positron linear collider with an integrated x-ray laser laboratory. Technical design report. Part 3. Physics at an e+ e- linear collider

J.A. Aguilar-Saavedra
(
- Granada U., Theor. Phys. Astrophys.
)
,
J. Alcaraz
(
- Madrid, CIEMAT
)
,
A. Ali
(
- DESY and
- DESY, Zeuthen
)
,
S. Ambrosanio
(
- CERN
)
,
A. Andreazza
(
- Milan U.
)

et al.

e-Print:
- hep-ph/0106315

Theoretical tools for a future $e^+ e^-$ linear collider

Stefan Dittmaier
(
- Munich, Max Planck Inst.
)

•
e-Print:
- hep-ph/0308079

Multiparton amplitudes in gauge theories

Michelangelo L. Mangano
(
- INFN, Pisa and
- Pisa, Scuola Normale Superiore and
- Pisa U.
)
,
Stephen J. Parke
(
- Fermilab
)

- Phys.Rept. 200 (1991) 301-367,
- Phys. Rep. 200 (1991) 301-367 and Fermilab Batavia - FERMILAB-Pub-90-113 (90,rec.Aug.) 81 p
•
e-Print:
- hep-th/0509223
•
DOI:
- 10.1016/0370-1573(91)90091-Y

Heavy quarks and leptons at e+ e- colliders

Alessandro Ballestrero
(
- INFN, Turin
)
,
Ezio Maina
(
- Turin U. and
- INFN, Turin
)
,
Stefano Moretti
(
- INFN, Turin
)

- Nucl.Phys.B 415 (1994) 265-292
•
e-Print:
- hep-ph/9212246
•
DOI:
- 10.1016/0550-3213(94)90112-0

On the computation of multigluon amplitudes

Petros Draggiotis
(
- Democritos Nucl. Res. Ctr.
)
,
Ronald H.P. Kleiss
(
- Nijmegen U.
)
,
Costas G. Papadopoulos
(
- Democritos Nucl. Res. Ctr. and
- CERN
)

- Phys.Lett.B 439 (1998) 157-164
•
e-Print:
- hep-ph/9807207
•
DOI:
- 10.1016/S0370-2693(98)01015-6

Multijet production in hadron collisions

- Eur.Phys.J.C 24 (2002) 447-458
•
e-Print:
- hep-ph/0202201
•
DOI:
- 10.1007/s10052-002-0955-5

A New approach to multijet calculations in hadron collisions

F. Caravaglios
(
- CERN
)
,
Michelangelo L. Mangano
(
- CERN
)
,
M. Moretti
(
- CERN and
- Ferrara U. and
- INFN, Ferrara
)
,
R. Pittau
(
- CERN
)

- Nucl.Phys.B 539 (1999) 215-232
•
e-Print:
- hep-ph/9807570
•
DOI:
- 10.1016/S0550-3213(98)00739-1

ALPGEN, a generator for hard multiparton processes in hadronic collisions

Michelangelo L. Mangano
(
- CERN
)
,
Mauro Moretti
(
- Ferrara U. and
- INFN, Ferrara
)
,
Fulvio Piccinini
(
- CERN
)
,
Roberto Pittau
(
- Turin U. and
- INFN, Turin
)
,
Antonio D. Polosa
(
- CERN
)

- JHEP 07 (2003) 001
•
e-Print:
- hep-ph/0206293
•
DOI:
- 10.1088/1126-6708/2003/07/001

1-25 of 32
1
2
25 / page