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Effective field theory for ultrasoft momenta in NRQCD and NRQED

A. Pineda
(
- Barcelona U.
)
,
J. Soto
(
- Barcelona U.
)

Jul, 1997

5 pages

Part of Quantum chromodynamics. Proceedings, Conference, QCD'97, Montpellier, France, July 3-9, 1997, 428-432

Published in:

Nucl.Phys.B Proc.Suppl. 64 (1998) 428-432

Contribution to:

High-Energy Physics International Euroconference on Quantum Chromodynamics: QCD 97: 25th Anniversary of QCD, 428-432

e-Print:

hep-ph/9707481 [hep-ph]

DOI:

10.1016/S0920-5632(97)01102-X

Report number:

UB-ECM-PF-97-17

View in:

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Abstract:

We propose an effective field theory for heavy quark-antiquark bound states once the soft gluons have been integrated out. We also give new results for the matching between QCD (QED) and NRQCD (NRQED).

Note:

5 pages, LaTeX, requires espcrc2.sty file. To appear in the proceedings of the QCD'97 conference, Montpellier, 3-9 July, 1997. Some typos in formulas corrected. One sentence changed Report-no: UB-ECM-PF-97/17

talk: Montpellier 1997/07/03
quantum chromodynamics: nonrelativistic
quantum electrodynamics: nonrelativistic
bound state: (quark antiquark)
operator: (4quark)
effective Lagrangian
perturbation theory
quark: mass

References(17)

Figures(0)

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A. Pineda
(
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)
,
J. Soto
(
- Barcelona U.
)

- Nucl.Phys.B Proc.Suppl. 64 (1998) 428-432,
•
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•
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)

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A. Pineda
(
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(
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)
,
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)
,
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Antonio Pineda
(
- Barcelona U. and
- Barcelona, Autonoma U.
)
,
Joan Soto
(
- Barcelona U. and
- Barcelona, Autonoma U.
)

- Phys.Lett.B 420 (1998) 391-396
•
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•
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