---
_id: '1628296'
abstract:
- lang: eng
text: The calculation of Feynman diagrams in terms of a Taylor expansion w.r.t.
small momenta squared is a very promising method and may become particularly important
for the higher loop diagrams. If the lowest thresholds are very low, however,
then the Taylor series expansion is either difficult to apply or extremely many
Taylor coefficients might be needed to achieve convergence. In the case of one
variable, q(2), the relevant normalization is r = q(2)/q(th)(2) (q(th)(2) = threshold
value of q(2)) and we demonstrate that with 30 Taylor coefficients up to r = 100
a precision of 3 to 4 decimals can be achieved. For the case of a low threshold
we compare our results with the zero threshold case obtained by first applying
a large mass expansion. bs expected the deviation is small which serves as an
excellent test for both the methods.
accept: '1'
author:
- autoren_ansetzung:
- Fleischer, Jochem
- Fleischer
- Jochem Fleischer
- Fleischer, J
- Fleischer, J.
- J Fleischer
- J. Fleischer
first_name: Jochem
full_name: Fleischer, Jochem
id: '40323'
last_name: Fleischer
- autoren_ansetzung:
- Tarasov, OV
- Tarasov
- OV Tarasov
- Tarasov, O
- Tarasov, O.
- O Tarasov
- O. Tarasov
first_name: OV
full_name: Tarasov, OV
last_name: Tarasov
citation:
ama: Fleischer J, Tarasov OV. Calculation of Feynman diagrams with low thresholds
from their small momentum expansion. *NUCLEAR PHYSICS B*. 1996:295-300.
angewandte-chemie: J. Fleischer, and O. V. Tarasov, “Calculation of Feynman diagrams
with low thresholds from their small momentum expansion.”, *NUCLEAR PHYSICS
B*, **1996**, 295-300.
apa: Fleischer, J., & Tarasov, O. V. (1996). Calculation of Feynman diagrams
with low thresholds from their small momentum expansion. *NUCLEAR PHYSICS B*,
295-300.
apa_indent: Fleischer,
J., & Tarasov, O. V. (1996). Calculation of Feynman diagrams with low thresholds
from their small momentum expansion. *NUCLEAR PHYSICS B*, 295-300.

aps: ' J. Fleischer and O. V. Tarasov, Calculation of Feynman diagrams with low
thresholds from their small momentum expansion., NUCLEAR PHYSICS B 295 (1996).'
bio1: 'Fleischer J, Tarasov OV (1996)

Calculation of Feynman diagrams with
low thresholds from their small momentum expansion.

NUCLEAR PHYSICS B: 295-300.'
chicago: Fleischer,
Jochem, and Tarasov, OV. 1996. “Calculation of Feynman diagrams with low thresholds
from their small momentum expansion.”, NUCLEAR PHYSICS B, , 295-300.

default: 'Fleischer J, Tarasov OV (1996)

*NUCLEAR PHYSICS B*: 295-300.'
dgps: Fleischer,
J. & Tarasov, O.V. (1996). Calculation of Feynman diagrams with low thresholds
from their small momentum expansion. (NUCLEAR PHYSICS B), 295-300. ELSEVIER SCIENCE
BV.

frontiers: Fleischer, J., and Tarasov, O. V. (1996). Calculation of Feynman diagrams
with low thresholds from their small momentum expansion. *NUCLEAR PHYSICS B*,
295-300.
harvard1: Fleischer, J., & Tarasov, O.V., 1996. Calculation of Feynman diagrams
with low thresholds from their small momentum expansion. *NUCLEAR PHYSICS B*,
, p 295-300.
ieee: ' J. Fleischer and O.V. Tarasov, “Calculation of Feynman diagrams with low
thresholds from their small momentum expansion.”, *NUCLEAR PHYSICS B*,
1996, pp. 295-300.'
lncs: ' Fleischer, J., Tarasov, O.V.: Calculation of Feynman diagrams with low thresholds
from their small momentum expansion. NUCLEAR PHYSICS B. 295-300 (1996).'
mla: 'Fleischer, Jochem, and Tarasov, OV. “Calculation of Feynman diagrams with
low thresholds from their small momentum expansion.”. *NUCLEAR PHYSICS B*
(1996): 295-300.'
wels: 'Fleischer, J.; Tarasov, O. V. (1996): Calculation of Feynman diagrams with
low thresholds from their small momentum expansion. *NUCLEAR PHYSICS B*,
295-300.'
date_created: 2010-04-28T13:23:24Z
date_submitted: 2011-08-30T08:27:43Z
date_updated: 2018-07-24T12:58:55Z
department:
- _id: '10028'
- _id: '23470617'
external_id:
isi:
- A1996WB01500039
first_author: Fleischer, Jochem
id: '1628296'
isi: '1'
language:
- iso: eng
page: 295-300
publication_identifier:
issn:
- 0550-3213
publication_status: published
publisher: ELSEVIER SCIENCE BV
quality_controlled: '1'
series_title: NUCLEAR PHYSICS B
status: public
title: Calculation of Feynman diagrams with low thresholds from their small momentum
expansion.
type: conference
year: '1996'
...