TY - JOUR
T1 - Quantum M2 → 2Λ/3 discontinuity for massive gravity with a Λ term
AU - Duff, M. J.
AU - Liu, James T.
AU - Sati, H.
PY - 2001/9/6
Y1 - 2001/9/6
N2 - In a previous paper we showed that the absence of the van Dam-Veltman-Zakharov discontinuity as M2 → 0 for massive spin 2 with a Λ term is an artifact of the tree approximation, and that the discontinuity reappears at one loop, as a result of going from five degrees of freedom to two. In this Letter we show that a similar classical continuity but quantum discontinuity arises in the "partially massless" limit M2 → 2Λ/3, as a result of going from five degrees of freedom to four.
AB - In a previous paper we showed that the absence of the van Dam-Veltman-Zakharov discontinuity as M2 → 0 for massive spin 2 with a Λ term is an artifact of the tree approximation, and that the discontinuity reappears at one loop, as a result of going from five degrees of freedom to two. In this Letter we show that a similar classical continuity but quantum discontinuity arises in the "partially massless" limit M2 → 2Λ/3, as a result of going from five degrees of freedom to four.
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U2 - 10.1016/S0370-2693(01)00909-1
DO - 10.1016/S0370-2693(01)00909-1
M3 - Article
AN - SCOPUS:0041663698
SN - 0370-2693
VL - 516
SP - 156
EP - 160
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -