Editorial

Editoria

Ariel - Volume 8 Number 4

Executive Editor James W. Lockard Jr. Issues Editor Neeraj K. Kanwal Business Manager Neeraj K. Kanwal University News Martin Trichtinger World News Doug Hiller Opinions Elizabeth A. McGuire Features Patrick P. Sokas Sports Desk Shahab S. Minassian Managing Editor Edward H. Jasper Managing Associate Brenda Peterson Photography Editor Robert D. Lehman, Jr. Graphics Christine M. Kuhnl

Volume 8, Number 4 - January 1928

Volume 8, Number 4 – January 1928. 48 pages including covers and advertisements. Hanley, John C., A Church in the Mart Egan, James V., The Poetry of Gilbert K. Chesterton Csanyi, Paul F., Clouds Greene, Frank E., On Wings of Silence O\u27Connell, John H. F., That Amazing Proposal Sheridan, James J., Mr. Hyde Penla, Joseph J. Della, Religion in Literature Hearn, Philip B., Residuum O\u27Connell, John H. F., Editorial Murphy, John W., Exchange McDonald, James E., Chronicle McDonald, James E., Alumni Notes Dromgoole, Walter T., Athletic

Volume 4, Number 8 - May 1924

Volume 4, Number 8 - May 1924. 40 pages including covers and advertisements. Contents Vonnery, Francis, Death Callahan, Albert J., John Francis Walsh Fratus, Frederick J., Arthur Ernest Cannon Halloran, John J., Joseph Bernard Walsh Keleher, James F., Prayer Barry, T. Henry, The Observer The Hotchpotch Editorials Holohan, Edward V., College Chronicle Mitchell, Joseph V., Alumni Lynch, James H., Exchange Bradley, Howard F., Athletic

N=8 Supergravity 4-point Amplitudes

We present the explicit expressions in N=8 supergravity for the bosonic 4-particle tree and 1-loop amplitudes including vectors and scalars. We also present the candidate 4-point UV divergences in a form of helicity amplitudes, corresponding to 3-loop manifestly N=8 supersymmetric and Lorentz covariant counterterm. This may shed some light on the 3-loop finiteness of N=8 SG and on a conjectured higher loop finiteness. We perform a supersymmetric deformation to complex momentum of the 4-point generating function including higher-loop counterterms and the 1-loop UV finite amplitudes. Using the explicit form of the scalar part of the 3-loop counterterm and of the 1-loop UV finite scalar 4-point amplitudes we find that they both have an unbroken E7 symmetry. We derive from E7 symmetry the low-energy theorem for the 1-loop n-point amplitudes.Comment: 23 p, 4 figure