@article{3093222, title = "Investigation of the conjectured nucleon deformation at low momentum transfer", author = "Sparveris, NF and Alarcon, R and Bernstein, AM and Bertozzi, W and and Botto, T and Bourgeois, P and Calarco, J and Casagrande, F and Distler, and MO and Dow, K and Farkondeh, M and Georgakopoulos, S and Gilad, S and and Hicks, R and Holtrop, M and Hotta, A and Jiang, X and Karabarbounis, A and and Kirkpatrick, J and Kowalski, S and Milner, R and Miskimen, R and and Nakagawa, I and Papanicolas, CN and Sarty, AJ and Sato, Y and Sirca, S and and Shaw, J and Six, E and Stave, S and Stiliaris, E and Tamae, T and and Tsentalovich, G and Tschalaer, C and Turchinetz, W and Zhou, ZL and and Zwart, T", journal = "Physical Review and Physical Review Letters Index", year = "2005", volume = "94", number = "2", publisher = "AMER PHYSICAL SOC", issn = "0094-0003", doi = "10.1103/PhysRevLett.94.022003", abstract = "We report new precise H(e,e(ā€™)p)pi(0) measurements at the Delta(1232) resonance at Q(2)=0.127 (GeV/c)(2) obtained at the MIT-Bates out-of-plane scattering facility which are particularly sensitive to the transverse electric amplitude (E2) of the gamma(*)Nā€“>Delta transition. The new data have been analyzed together with those of earlier measurements to yield precise quadrupole to dipole amplitude ratios: Re(E-1+(3/2)/M-1+(3/2))=(-2.3+/-0.3(stat+syst)+/-0.6(model))% and Re(S-1+(3/2)/M-1+(3/2))=(-6.1+/-0.2(stat+syst)+/-0.5(model))% for M-1+(3/2)=(41.4+/-0.3(stat+syst)+/-0.4(model))(10(-3)/m(pi)(+)). The derived amplitudes give credence to the conjecture of deformation in hadrons favoring, at low Q(2), the dominance of mesonic effects." }