Details
| Original language | English |
|---|---|
| Pages (from-to) | 403-414 |
| Number of pages | 12 |
| Journal | Nuclear Physics, Section B |
| Volume | 338 |
| Issue number | 2 |
| Publication status | Published - 9 Jul 1990 |
| Externally published | Yes |
Abstract
We investigate the compatibility of unitary gauges in covariant fermionic strings with multi-loop modular invariance and factorization. Earlier objections regarding modular invariance disappear since arbitrary reference spin structures are admissible. The physical factorization hypothesis is confirmed, and a subclass of gauges is identified which factorizes bosonic amplitudes in the "zero" picture alone. Details are worked out explicitly in a two-loop example.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
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In: Nuclear Physics, Section B, Vol. 338, No. 2, 09.07.1990, p. 403-414.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Factorization and modular invariance of multi-loop superstring amplitudes in the unitary gauge
AU - Lechtenfeld, Olaf
N1 - Funding Information: I gratefully acknowledge discussions with A . Morozov and was partially supported by NSF grant PHY-82-15364 . Copyright: Copyright 2015 Elsevier B.V., All rights reserved.
PY - 1990/7/9
Y1 - 1990/7/9
N2 - We investigate the compatibility of unitary gauges in covariant fermionic strings with multi-loop modular invariance and factorization. Earlier objections regarding modular invariance disappear since arbitrary reference spin structures are admissible. The physical factorization hypothesis is confirmed, and a subclass of gauges is identified which factorizes bosonic amplitudes in the "zero" picture alone. Details are worked out explicitly in a two-loop example.
AB - We investigate the compatibility of unitary gauges in covariant fermionic strings with multi-loop modular invariance and factorization. Earlier objections regarding modular invariance disappear since arbitrary reference spin structures are admissible. The physical factorization hypothesis is confirmed, and a subclass of gauges is identified which factorizes bosonic amplitudes in the "zero" picture alone. Details are worked out explicitly in a two-loop example.
UR - http://www.scopus.com/inward/record.url?scp=0001165887&partnerID=8YFLogxK
U2 - 10.1016/0550-3213(90)90639-U
DO - 10.1016/0550-3213(90)90639-U
M3 - Article
AN - SCOPUS:0001165887
VL - 338
SP - 403
EP - 414
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
SN - 0550-3213
IS - 2
ER -