622 citations · 4.1k across the 90 of their papers we have counts for
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hep-th2003★ 8 cited
Gauge-covariant vertex operators
Haidong Feng, Warren Siegel
We derive Yang-Mills vertex operators for (super)string theory whose BRST invariance requires only the free gauge-covariant field equation and no gauge condition. Standard conforma…
hep-th2003★ 48 cited
Stringy gravity at short distances
W. Siegel
Analysis of string interactions indicates a weakening of gravity at the string length scale, thus avoiding black holes and their singularities.
hep-th2003★ 3 cited
Bound-state gravity from higher derivatives
Kiyoung Lee, Warren Siegel
In certain Lorentz-covariant higher-derivative field theories of spins < or =1, would-be ultraviolet divergences generate color-singlet poles as infrared divergences. Absence of hi…