A. Saha

Publication List Details

Period

1979 - 2008

Number

233

Co-Authors

Quark-Hadron Duality in Neutron (3He) Spin Structure (2008)

Solvignon, P., Liyanage, N., Choi, Seonho, Aniol, K., Averett, T., ...

We present experimental results of the first high-precision test of quark-hadron duality in the spin-structure function g_1 of the neutron and $^3$He using a polarized 3He target in the...

3He Spin-Dependent Cross Sections and Sum Rules (2008)

Amarian, M., Auerbach, L., Averett, T., Berthot, J., Bertin, P., ...

We present a measurement of the spin-dependent cross sections for the \vec{^3He}(\vec{e},e')X} reaction in the quasielastic and resonance regions at four-momentum transfer 0.1 < Q^2< 0.9 GeV^2. The...

Dynamics of the $^{16}$O(e,e'p) cross section at high missing energies (2007)

Liyanage, N., Anderson, B.D., Aniol, K.A., Auerbach, L., Baker, F.T., Berthot, J., ...

We measured the cross section and response functions (R_L, R_T, and R_LT) for the 16O(e,e'p) reaction in quasielastic kinematics for missing energies 25

$G_{E_p}/G_{M_p}$ ratio by polarization transfer in $\vec{e}p\rightarrow e\vec{p}$ (2007)

Jones, M.K., Aniol, K.A., Baker, F.T., Berthot, J., Bertin, P.Y., Bertozzi, W., ...

The ratio of the proton's elastic electromagnetic form factors was obtained by measuring the transverse and longitudinal polarizations of recoiling protons from the elastic scattering of polarized...

Measurements of the deuteron elastic structure function $A(Q^2)$ for $0.7\leq Q^2\leq 6.0$ (GeV/c)$^2$ at Jefferson Laboratory (2007)

Alexa, L.C., Anderson, B.D., Aniol, K.A., Arundell, K., Auerbach, L., Baker, F.T., ...

The deuteron elastic structure function A(Q^2) has been extracted in the Q^2 range 0.7 to 6.0 (GeV/c)^2 from cross section measurements of elastic electron-deuteron scattering in coincidence using...

Measurements of the deuteron elastic structure function $A(Q^2)$ for $0.7\leq Q^2\leq 6.0$ (GeV/c)$^2$ at Jefferson Laboratory (2007)

Alexa, L.C., Anderson, B.D., Aniol, K.A., Arundell, K., Auerbach, L., Baker, F.T., ...

The deuteron elastic structure function A(Q^2) has been extracted in the Q^2 range 0.7 to 6.0 (GeV/c)^2 from cross section measurements of elastic electron-deuteron scattering in coincidence using...

$G_{E_p}/G_{M_p}$ ratio by polarization transfer in $\vec{e}p\rightarrow e\vec{p}$ (2007)

Jones, M.K., Aniol, K.A., Baker, F.T., Berthot, J., Bertin, P.Y., Bertozzi, W., ...

The ratio of the proton's elastic electromagnetic form factors was obtained by measuring the transverse and longitudinal polarizations of recoiling protons from the elastic scattering of polarized...

Dynamics of the $^{16}$O(e,e'p) cross section at high missing energies (2007)

Liyanage, N., Anderson, B.D., Aniol, K.A., Auerbach, L., Baker, F.T., Berthot, J., ...

We measured the cross section and response functions (R_L, R_T, and R_LT) for the 16O(e,e'p) reaction in quasielastic kinematics for missing energies 25

Measurements of the deuteron elastic structure function $A(Q^2)$ for $0.7\leq Q^2\leq 6.0$ (GeV/c)$^2$ at Jefferson Laboratory (2007)

Alexa, L.C., Anderson, B.D., Aniol, K.A., Arundell, K., Auerbach, L., Baker, F.T., ...

The deuteron elastic structure function A(Q^2) has been extracted in the Q^2 range 0.7 to 6.0 (GeV/c)^2 from cross section measurements of elastic electron-deuteron scattering in coincidence using...

$G_{E_p}/G_{M_p}$ ratio by polarization transfer in $\vec{e}p\rightarrow e\vec{p}$ (2007)

Jones, M.K., Aniol, K.A., Baker, F.T., Berthot, J., Bertin, P.Y., Bertozzi, W., ...

The ratio of the proton's elastic electromagnetic form factors was obtained by measuring the transverse and longitudinal polarizations of recoiling protons from the elastic scattering of polarized...

Dynamics of the $^{16}$O(e,e'p) cross section at high missing energies (2007)

Liyanage, N., Anderson, B.D., Aniol, K.A., Auerbach, L., Baker, F.T., Berthot, J., ...

We measured the cross section and response functions (R_L, R_T, and R_LT) for the 16O(e,e'p) reaction in quasielastic kinematics for missing energies 25

Holographic Dark Energy Model with Modified Generalized Chaplygin Gas (2007)

Paul, B. C., Thakur, P., Saha, A.

We present a holographic dark energy model of the universe considering modified generalized Chaplygin gas (GCG). The modified GCG behaves as an ordinary barotropic fluid in the early epoch when the...

I Zw 18 revisited with HST/ACS and Cepheids: New Distance and Age (2007)

Aloisi, A., Clementini, G., Tosi, M., Annibali, F., Contreras, R., Fiorentino, G., ...

We present new V and I-band HST/ACS photometry of I Zw 18, the most metal-poor blue compact dwarf (BCD) galaxy in the nearby universe. It has been argued in the past that I Zw 18 is a very young...

High resolution spectroscopy of $^{12}_\Lambda$ B by electroproduction (2007)

Iodice, M., Cusanno, F., Acha, A., Ambrozewicz, P., Aniol, K.A., Baturin, P., ...

An experiment measuring electroproduction of hypernuclei has been performed in Hall A at Jefferson Lab on a $^{12}$C target. In order to increase counting rates and provide unambiguous kaon...

High Resolution Spectroscopy of 12B_Lambda by Electroproduction (2007)

Iodice, M., Cusanno, F., Acha, A., Ambrozewicz, P., Aniol, K. A., Baturin, P., ...

An experiment measuring electroproduction of hypernuclei has been performed in Hall A at Jefferson Lab on a $^{12}$C target. In order to increase counting rates and provide unambiguous kaon...

Recoil-proton polarization in high-energy deuteron photodisintegration with circularly polarized photons (2007)

Jiang, X., Arrington, J., Benmokhtar, F., Camsonne, A., Chen, J. P., Choi, S., ...

We measured the angular dependence of the three recoil proton polarization components in two-body photodisintegration of the deuteron at a photon energy of 2 GeV. These new data provide a benchmark...

Compton Scattering Cross Section on the Proton at High Momentum Transfer (2007)

Danagoulian, A., H. Mamyan, V., Roedelbronn, M., A. Aniol, K., Bertin, P.Y., ...

Cross-section values for Compton scattering on the proton were measured at 25 kinematic settings over the range s = 5-11 and -t = 2-7 GeV2 with statistical accuracy of a few percent. The scaling...

Polarization Transfer in Proton Compton Scattering at High Momentum Transfer (2007)

J. Hamilton, D., H. Mamyan, V., A. Aniol, K., Y. Bertin, P., Bimbot, L., ...

Compton scattering from the proton was investigated at s =(6.9 GeV)**2 and t = (-4.0 GeV)**2 via polarization transfer from circularly polarized incident photons. The longitudinal and transverse...

Precision Measurements of the Nucleon Strange Form Factors at Q^2 ~0.1 GeV^2 (2007)

Acha, A., Aniol, K.A., Armstrong, D.S., Arrington, J., Averett, T., Bailey, S., ...

We report new measurements of the parity-violating asymmetry A_PV in elastic scattering of 3 GeV electrons off hydrogen and 4He targets with ~6.0 degrees. The 4He result is A_PV = (+6.40 +/- 0.23...

Investigation of proton-proton short-range correlations via the $^{12}$C(e,e'pp) reaction (2007)

Shneor, R., Monaghan, P., Subedi, R., D. Anderson, B., Aniol, K., Annand, J., ...

We investigated simultaneously the 12C(e,e'p) and 12C(e,e'pp) reactions at Q2 = 2 [GeV/c]2, x_B = 1.2, and in an (e,e'p) missing-momentum range from 300 to 600 MeV/c. At these kinematics, with a...

Precision Measurement of the Neutron Spin Asymmetries and Spin-dependent Structure Functions in the Valence Quark Region (2007)

Zheng, X., Aniol, K., S. Armstrong, D., D. Averett, T., Bertozzi, W., Binet, S., ...

We report on measurements of the neutron spin asymmetries $A_{1,2}^n$ and polarized structure functions $g_{1,2}^n$ at three kinematics in the deep inelastic region, with $x=0.33$, 0.47 and 0.60 and...

Precision Rosenbluth measurement of the proton elastic form factors (2007)

Qattan, I. A., Arrington, J., Segel, R. E., Zheng, X., Aniol, K., Baker, O. K., ...

We report the results of a new Rosenbluth measurement of the proton form factors at Q^2 values of 2.64, 3.20 and 4.10 GeV^2. Cross sections were determined by detecting the recoiling proton in...

Leo A: A Late-Blooming Survivor of the Epoch of Reionization in the Local Group (2007)

Cole, A. A., Skillman, E. D., Tolstoy, E., Gallagher III, J. S., Aparicio, A., Dolphin, A. E., ...

As part of a major program to use isolated Local Group dwarf galaxies as near-field probes of cosmology, we have obtained deep images of the dwarf irregular galaxy Leo A with the Advanced Camera for...

Recoil Polarization Measurements for Neutral Pion Electroproduction at $Q^2$=1 (GeV/c)$^2$ Near the $\Delta$ Resonance (2007)

J. Kelly, J., Gayou, O., E. Roché, R., Chai, Z., K. Jones, M., J. Sarty, A., ...

We measured angular distributions of differential cross section, beam analyzing power, and recoil polarization for neutral pion electroproduction at Q^2 = 1.0 (GeV/c)^2 in 10 bins of W across the...

A New Deep HST/ACS CMD of I Zw 18: Evidence for Red Giant Branch Stars (2007)

Aloisi, A., Annibali, F., Mack, J., Tosi, M., Clementini, G., ...

We present results from new deep HST/ACS photometry of I Zw 18, the most metal-poor blue compact dwarf galaxy in the nearby universe. It has been previously argued that this is a very young system...

Angular dependence of recoil proton polarization in high-energy \gamma d \to p n (2007)

Jiang, X., Arrington, J., Benmokhtar, F., Camsonne, A., Chen, J. P., Choi, S., ...

We measured the angular dependence of the three recoil proton polarization components in two-body photodisintegration of the deuteron at a photon energy of 2 GeV. These new data provide a benchmark...

Constraints on the nucleon strange form factors at $Q^2 \sim 0.1 GeV^2$ (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering...

Parity-violating electron scattering from $^4$He and the strange electric form factor of the nucleon (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q^2 =...

Properties of Ellipticity Correlation with Atmospheric Structure from Gemini South (2007)

Asztalos, S., De Vries, W. H., Rosenberg, L. J, Treadway, T., Burke, D., Claver, C., ...

Cosmic shear holds great promise for a precision independent measurement of $\Omega\rm_m$, the mass density of the universe relative to the critical density. The signal is expected to be weak, so a...

Parity-violating electron scattering from $^4$He and the strange electric form factor of the nucleon (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q^2 =...

Constraints on the nucleon strange form factors at $Q^2 \sim 0.1 GeV^2$ (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering...

Parity-violating electron scattering from $^4$He and the strange electric form factor of the nucleon (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q^2 =...

Constraints on the nucleon strange form factors at $Q^2 \sim 0.1 GeV^2$ (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering...

Scaling tests of the cross section for deeply virtual compton scattering (2007)

Munoz Camacho, C., Camsonne, A., Mazouz, M., Ferdi, C., Gavalian, G., Kuchina, E., ...

We present the first measurements of \vec{e}p->epg cross section in the deep virtual Compton scattering (DVCS) regime and the valence quark region (x_{Bj}=0.36). From JLab E00-110, we extract the...

Measurements of the electron-helicity dependent cross sections of deeply virtual compton scattering with CEBAF at 12 GeV (2006)

Roche, J., Hyde-Wright, C. E., Michel, B., Camacho, C. Munoz, Gavalian, G., Amarian, M., ...

We propose precision measurements of the helicity-dependent and helicity independent cross sections for the ep->epg reaction in Deeply Virtual Compton Scattering (DVCS) kinematics. DVCS scaling is...

A Search for Sigma^0_5, N^0_5 and Theta^++ Pentaquark States (2006)

Qiang, Y., Annand, J., Arrington, J., Azimov, Ya. I., Bertozzi, W., Cates, G., ...

A high-resolution (sigma_instr. = 1.5 MeV) search for narrow states (Gamma < 10 MeV) with masses of M_x approx 1500-1850 MeV in ep -> e'K^+ X, e'K^- X and e' pi^+ X electroproduction at small angles...

Backward electroproduction of $\pi^0$ mesons on protons in the region of nucleon resonances at four momentum transfer squared $Q^2 = 1.0 GeV^2$ (2006)

Laveissiere, G., Degrande, N., Jaminion, S., Jutier, C., Todor, L., Di Salvo, R., ...

Exclusive electroproduction of pi0 mesons on protons in the backward hemisphere has been studied at Q2=1.0 GeV2 by detecting protons in the forward direction in coincidence with scattered electrons...

Backward electroproduction of $\pi^0$ mesons on protons in the region of nucleon resonances at four momentum transfer squared $Q^2 = 1.0 GeV^2$ (2006)

Laveissiere, G., Degrande, N., Jaminion, S., Jutier, C., Todor, L., Di Salvo, R., ...

Exclusive electroproduction of pi0 mesons on protons in the backward hemisphere has been studied at Q2=1.0 GeV2 by detecting protons in the forward direction in coincidence with scattered electrons...

Backward electroproduction of $\pi^0$ mesons on protons in the region of nucleon resonances at four momentum transfer squared $Q^2 = 1.0 GeV^2$ (2006)

Laveissiere, G., Degrande, N., Jaminion, S., Jutier, C., Todor, L., Di Salvo, R., ...

Exclusive electroproduction of pi0 mesons on protons in the backward hemisphere has been studied at Q2=1.0 GeV2 by detecting protons in the forward direction in coincidence with scattered electrons...

The Hubble Constant: A Summary of the HST Program for the Luminosity Calibration of Type Ia Supernovae by Means of Cepheids (2006)

Sandage, A., Tammann, G. A., Saha, A., Reindl, B., Macchetto, F. D., Panagia, N.

This is the fifth and final summary paper of our 15 year program using the Hubble Space Telescope (HST) to determine the Hubble constant using Type Ia supernovae, calibrated with Cepheid variables in...

Cepheid Distances to SNe Ia Host Galaxies based on a Revised Photometric Zero-Point of the HST-WFPC2 and New P-L Relations and Metallicity Corrections (2006)

Saha, A., Thim, F., Tammann, G. A., Reindl, B., Sandage, A.

With this paper we continue the preparation for a forthcoming summary report of our experiment with the Hubble Space Telescope (HST) to determine the Hubble constant using type Ia supernovae as...

Recoil Polarization for Delta Excitation in Pion Electroproduction (2006)

J. Kelly, J., E. Roche, R., Chai, Z., K. Jones, M., Gayou, O., J. Sarty, A., ...

We measured angular distributions of recoil-polarization response functions for neutral pion electroproduction for W=1.23 GeV at Q$^2=1.0 (GeV/c)^2$, obtaining 14 separated response functions plus 2...

Parity-violating electron scattering from $^4$He and the strange electric form factor of the nucleon (2006)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q^2 =...

Constraints on the nucleon strange form factors at $Q^2 \sim 0.1 GeV^2$ (2006)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering...

Parity-violating electron scattering from $^4$He and the strange electric form factor of the nucleon (2006)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q^2 =...

Measurements of the Electron-Helicity Dependent Cross Sections of Deeply Virtual Compton Scattering with CEBAF at 12 GeV (2006)

Roche, J., Hyde-Wright, C. E., Michel, B., Camacho, C. Munoz, Gavalian, G., Amarian, M., ...

We propose precision measurements of the helicity-dependent and helicity independent cross sections for the ep->epg reaction in Deeply Virtual Compton Scattering (DVCS) kinematics. DVCS scaling is...

Virtual compton scattering in the resonance region up to the deep inelastic region at backward angles and momentum transfer squared of $Q^2$ = 1.0 $GeV^2$ (2005)

Laveissiere, G., Degrande, N., Jaminion, S., Jutier, C., Todor, L., Di Salvo, R., ...

We have made the first measurements of the virtual Compton scattering process via the e p -> e p gamma exclusive reaction at Q**2 = 1 GeV**2 in the nucleon resonance region. The cross section is...

The dynamics of the quasielastic $^{16}O$(e,e'p) reaction at $Q^2$ $\approx$ 0.8 (GeV/c)$^2$ (2005)

G. Fissum, K., Liang, M., D. Anderson, B., A. Aniol, K., Auerbach, L., T. Baker, F., ...

The physics program in Hall A at Jefferson Lab commenced in the summer of 1997 with a detailed investigation of the 16O(e,e'p) reaction in quasielastic, constant (q,w) kinematics at Q^2 ~ 0.8...