PHASEModels of baryon structure predict a small quadrupole deformation of the nucleon due to residual tensor forces between quarks or distortions from the pion cloud. Sensitivity to quark versus pion degrees of freedom occurs through the Q2 dependence of the magnetic (M1+), electric (E1+), and scalar (S1+) multipoles in the gamma*p-->Delta+-->ppi0 transition. We report new experimental values for the ratios E1+/M1+ and S1+/M1+ over the range Q2 = 0.4–1.8 GeV2, extracted from precision p(e, e[prime]p)pi0 data using a truncated multipole expansion. Results are best described by recent unitary models in which the pion cloud plays a dominant role
We report a new measurement of the exclusive electroproduction reaction gamma*_p --> pi0_p to explor...
We report a new measurement of the exclusive electroproduction reaction gamma* p -\u3e pi0 p to expl...
High-precision H(e,e\u27p)pi0 measurements at Q2=0.126 (GeV/c)2 are reported, which allow the determ...
PHASEModels of baryon structure predict a small quadrupole deformation of the nucleon due to residua...
Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual ten...
Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual ten...
We report new precise p$(\vec{e},e^\prime p)\pi^0$ measurements at the peak of the $\Delta^{+}(1232)...
Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual ten...
The authors have analyzed exclusive p(e,e{prime}p){pi}{sup 0} data to determine the electromagnetic ...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2006.This electronic versi...
The novel measurements of the $\gamma^{\ast} N \rightarrow \Delta(1232)$ Coulomb quadrupole form fac...
The E2/M1 ratio (EMR) of the (1232) is extracted from the world data in pion photoproduction by mea...
We present an extraction of the E2/M1 ratio of the $\Delta$(1232) from experimental data applying an...
PHASEWe report a new measurement of the exclusive electroproduction reaction gamma* p -> pi0 p to ex...
We studied the electroproduction of the $\Delta$(1232) resonance at $Q\sp2$ of 2.8 and 4 GeV$\sp2$ v...
We report a new measurement of the exclusive electroproduction reaction gamma*_p --> pi0_p to explor...
We report a new measurement of the exclusive electroproduction reaction gamma* p -\u3e pi0 p to expl...
High-precision H(e,e\u27p)pi0 measurements at Q2=0.126 (GeV/c)2 are reported, which allow the determ...
PHASEModels of baryon structure predict a small quadrupole deformation of the nucleon due to residua...
Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual ten...
Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual ten...
We report new precise p$(\vec{e},e^\prime p)\pi^0$ measurements at the peak of the $\Delta^{+}(1232)...
Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual ten...
The authors have analyzed exclusive p(e,e{prime}p){pi}{sup 0} data to determine the electromagnetic ...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2006.This electronic versi...
The novel measurements of the $\gamma^{\ast} N \rightarrow \Delta(1232)$ Coulomb quadrupole form fac...
The E2/M1 ratio (EMR) of the (1232) is extracted from the world data in pion photoproduction by mea...
We present an extraction of the E2/M1 ratio of the $\Delta$(1232) from experimental data applying an...
PHASEWe report a new measurement of the exclusive electroproduction reaction gamma* p -> pi0 p to ex...
We studied the electroproduction of the $\Delta$(1232) resonance at $Q\sp2$ of 2.8 and 4 GeV$\sp2$ v...
We report a new measurement of the exclusive electroproduction reaction gamma*_p --> pi0_p to explor...
We report a new measurement of the exclusive electroproduction reaction gamma* p -\u3e pi0 p to expl...
High-precision H(e,e\u27p)pi0 measurements at Q2=0.126 (GeV/c)2 are reported, which allow the determ...