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Volumn 94, Issue 10, 2005, Pages

Dissolving script N sign = 4 loop amplitudes into QCD tree amplitudes

Author keywords

[No Author keywords available]

Indexed keywords

GLUON SCATTERING; JET PRODUCTIONS; ONE-LOOP AMPLITUDES; TREE AMPLITUDES;

EID: 18044396162     PISSN: 00319007     EISSN: 10797114     Source Type: Journal    
DOI: 10.1103/PhysRevLett.94.102002     Document Type: Article
Times cited : (72)

References (35)
  • 6
    • 18044366995 scopus 로고    scopus 로고
    • S. Gukov, L. Motl, and A. Neitzke, hep-th/0404085
    • S. Gukov, L. Motl, and A. Neitzke, hep-th/0404085.
  • 8
    • 18044385631 scopus 로고    scopus 로고
    • note
    • 2.
  • 10
    • 18044380570 scopus 로고    scopus 로고
    • note
    • Some savings could be achieved by writing down the amplitude from an "intermediate prescription," as out-lined in [7]. Given the miraculous cancellations we observe in this Letter, it is natural to wonder whether there is a similar cancellation between the terms appearing in such an expression, or between some of the 44 CSW diagrams. However, all of these terms individually depend on an arbitrary reference spinor η (which drops out of the full amplitude), and while it is likely that cancellations occur for certain clever choices of η, is it not a priori clear how to choose η to maximize the cancellations.
  • 11
    • 18044373318 scopus 로고    scopus 로고
    • note
    • This suggestion has also been made in [12], which appeared as this Letter was in preparation.
  • 12
    • 18044393001 scopus 로고    scopus 로고
    • Z. Bern, Lance J. Dixon, and D.A. Kosower, hep-th/0412210.
    • Z. Bern, Lance J. Dixon, and D.A. Kosower, hep-th/0412210.
  • 13
    • 18044372311 scopus 로고    scopus 로고
    • note
    • It would be interesting to see how many roots there are to the algebraic equations which de- scribe this amplitude as explained in [4]. Perhaps there is some relation between the number of roots and the number of terms in the most compact expression possible for a given amplitude.
  • 19
    • 18044381598 scopus 로고    scopus 로고
    • I. Bena, Z. Bern, D. A. Kosower, and R. Roiban, hep-th/0410054
    • I. Bena, Z. Bern, D. A. Kosower, and R. Roiban, hep-th/0410054.
  • 20
    • 18044386037 scopus 로고    scopus 로고
    • F. Cachazo, hep-th/0410077.
    • F. Cachazo, hep-th/0410077.
  • 21
    • 18044366252 scopus 로고    scopus 로고
    • M. Luo and C. Wen, hep-th/0410118
    • M. Luo and C. Wen, hep-th/0410118.
  • 27
    • 18044388436 scopus 로고    scopus 로고
    • R. Britto, F. Cachazo, and B. Feng, hep-th/0412103
    • R. Britto, F. Cachazo, and B. Feng, hep-th/0412103.
  • 28
    • 18044398622 scopus 로고    scopus 로고
    • J. Bedford, A. Brandhuber, B. Spence, and G. Travaglini, hep-th/0412108
    • J. Bedford, A. Brandhuber, B. Spence, and G. Travaglini, hep-th/0412108.
  • 35
    • 18044385837 scopus 로고    scopus 로고
    • note
    • [4] cut can be used to verify that all four of these coefficients are equal to each other (and nonzero), so this equation is not useful.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.