D. Adikaram

activity

20112022

most citedCross sections for the exclusive photon electroproduction on the proton and Generalized Parton Distributions

105 citations · 1.1k across the 31 of their papers we have counts for

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24 papers · 1 filter

nucl-ex2021★ 32 cited

Form Factors and Two-Photon Exchange in High-Energy Elastic Electron-Proton Scattering

M. E. Christy, T. Gautam, L. Ou +167

We present new precision measurements of the elastic electron-proton scattering cross section for momentum transfer (Q $^{2}$ ) up to 15.75~\gevsq. Combined with existing data, these p…

nucl-ex2018★ 10 cited

Beam-Target Helicity Asymmetry $E$ in $K^{0} Λ$ and $K^{0} Σ^{0}$ Photoproduction on the Neutron

CLAS Collaboration, D. H. Ho, R. A. Schumacher +146

We report the first measurements of the $E$ beam-target helicity asymmetry for the $γ n \to K^{0} Λ$ , and $K^{0} Σ^{0}$ channels in the energy range 1.70 $\leq W \leq$ 2.34 Ge…

nucl-ex2017★ 14 cited

Semi-Inclusive $π_{0}$ target and beam-target asymmetries from 6 GeV electron scattering with CLAS

S. Jawalkar, S. Koirala, H. Avakian +160

We present precision measurements of the target and beam-target spin asymmetries from neutral pion electroproduction in deep-inelastic scattering (DIS) using the CEBAF Large Accept…

nucl-ex2017★ 43 cited

First Exclusive Measurement of Deeply Virtual Compton Scattering off $^{4}$ He: Toward the 3D Tomography of Nuclei

M. Hattawy, N. A. Baltzell, R. Dupré +157

We report on the first measurement of the beam-spin asymmetry in the exclusive process of coherent deeply virtual Compton scattering off a nucleus. The experiment used the 6 GeV el…

nucl-ex2017★ 12 cited

Photon beam asymmetry $Σ$ in the reaction $γ p \to p ω$ for $E_{γ}$ = 1.152 to 1.876 GeV

CLAS Collaboration, P. Collins, B. G. Ritchie +147

Photon beam asymmetry $Σ$ measurements for $ω$ photoproduction in the reaction $γ p \to ω p$ are reported for photon energies from 1.152 to 1.876 GeV. Data were taken using a li…

nucl-ex2017★ 26 cited

Differential Cross Section Measurements for $γ n \to π^{-} p$ Above the First Nucleon Resonance Region

P. T. Mattione, D. S. Carman, I. I. Strakovsky +145

The quasi-free $γ d \to π^{-} p (p)$ differential cross section has been measured with CLAS at photon beam energies $E_{γ}$ from 0.445 GeV to 2.510 GeV (corresponding to $W$ from 1.311 Ge…

nucl-ex2017★ 38 cited

Measurements of $e p \to e^{'} π^{+} π^{-} p^{'}$ Cross Sections with CLAS at $1.40 < W < 2.0$ GeV and $2.0 < Q^{2} < 5.0$ GeV $^{2}$

E. L. Isupov, V. D. Burkert, D. S. Carman +5

This paper reports new exclusive cross sections for $e p \to e^{'} π^{+} π^{-} p^{'}$ using the CLAS detector at Jefferson Laboratory. These results are presented for the first time at photo…

nucl-ex2017

The Beam-Target Helicity Asymmetry for $γ n \to π^{-} p$ in the {\bf{ $N^{*}$ } Resonance Region

D. Ho, P. Peng, C. Bass +140

We report the first beam-target double-polarization asymmetries in the $γ + n (p) \to π^{-} + p (p)$ reaction spanning the nucleon resonance region from invariant mass $W$ = $150…

nucl-ex2016★ 9 cited

Target and beam-target spin asymmetries in exclusive pion electroproduction for $Q^{2} > 1$ GeV $^{2}$ . II. $e p \to e π^{0} p$

P. E. Bosted, A. Kim, K. P. Adhikari +152

Beam-target double-spin asymmetries and target single-spin asymmetries were measured for the exclusive $π^{0}$ electroproduction reaction $γ^{*} p \to p π^{0}$ , expanding an analysis of…

nucl-ex2016★ 10 cited

Measurement of Target and Double-spin Asymmetries for the $e p \to e π^{+} (n)$ Reaction in the Nucleon Resonance Region at Low $Q^{2}$

X. Zheng, K. P. Adhikari, P. Bosted +147

We report measurements of target- and double-spin asymmetries for the exclusive channel $e p \to e π^{+} (n)$ in the nucleon resonance region at Jefferson Lab using the CEBAF…

nucl-ex2016★ 6 cited

Target and Beam-Target Spin Asymmetries in Exclusive $π^{+}$ and $π^{-}$ Electroproduction with 1.6 to 5.7 GeV Electrons

P. E. Bosted, A. S. Biselli, S. Careccia +159

Beam-target double spin asymmetries and target single-spin asymmetries in exclusive $π^{+}$ and $π^{-}$ electroproduction were obtained from scattering of 1.6 to 5.7 GeV longitudinally…

nucl-ex2016★ 63 cited

Measurement of two-photon exchange effect by comparing elastic $e^{\pm} p$ cross sections

D. Rimal, D. Adikaram, B. A. Raue +142

[Background] The electromagnetic form factors of the proton measured by unpolarized and polarized electron scattering experiments show a significant disagreement that grows with th…

nucl-ex2015★ 40 cited

First measurement of the helicity asymmetry $E$ in $η$ photoproduction on the proton

I. Senderovich, B. T. Morrison, M. Dugger +148

Results are presented for the first measurement of the double-polarization helicity asymmetry E for the $η$ photoproduction reaction $γ p \to η p$ . Data were obtained using t…

nucl-ex2015★ 43 cited

Precise Determination of the Deuteron Spin Structure at Low to Moderate $Q^{2}$ with CLAS and Extraction of the Neutron Contribution

N. Guler, R. G. Fersch, S. E. Kuhn +126

We present the final results for the deuteron spin structure functions obtained from the full data set collected with Jefferson Lab's CLAS in 2000-2001. Polarized electrons with en…

nucl-ex2015★ 5 cited

Determination of the Beam-Spin Asymmetry of Deuteron Photodisintegration in the Energy Region $E_{γ} = 1.1 - 2.3$ GeV

Nicholas Zachariou, Yordanka Ilieva, Nikolay Ya. Ivanov +140

The beam-spin asymmetry, $Σ$ , for the reaction $γ d \to p n$ has been measured using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerato…

nucl-ex2015★ 36 cited

First Measurement of the Polarization Observable E in the $p (γ, π^{+}) n$ Reaction up to 2.25 GeV

S. Strauch, W. J. Briscoe, M. Döring +165

First results from the longitudinally polarized frozen-spin target (FROST) program are reported. The double-polarization observable E, for the reaction $γ p \to π^{+} n$ , has…

nucl-ex2014★ 102 cited

Towards a resolution of the proton form factor problem: new electron and positron scattering data

D. Adikaram, D. Rimal, L. B. Weinstein +133

There is a significant discrepancy between the values of the proton electric form factor, $G_{E}^{p}$ , extracted using unpolarized and polarized electron scattering. Calculations predi…

nucl-ex2014★ 16 cited

Induced polarization of Λ(1116) in kaon electroproduction

M. Gabrielyan, B. A. Raue, D. S. Carman +132

We have measured the induced polarization of the $Λ (1116)$ in the reaction $e p \to e^{'} K^{+} Λ$ , detecting the scattered $e^{'}$ and $K^{+}$ in the final state along with the proton f…

nucl-ex2014★ 48 cited

Precision measurements of $g_{1}$ of the proton and the deuteron with 6 GeV electrons

Y. Prok, P. Bosted, N. Kvaltine +160

The inclusive polarized structure functions of the proton and deuteron, g1p and g1d, were measured with high statistical precision using polarized 6 GeV electrons incident on a pol…

nucl-ex2013★ 27 cited

Demonstration of a novel technique to measure two-photon exchange effects in elastic $e^{\pm} p$ scattering

M. Moteabbed, M. Niroula, B. A. Raue +147

The discrepancy between proton electromagnetic form factors extracted using unpolarized and polarized scattering data is believed to be a consequence of two-photon exchange (TPE) e…

nucl-ex2012★ 3 cited

Near Threshold Neutral Pion Electroproduction at High Momentum Transfers and Generalized Form Factors

P. Khetarpal, P. Stoler, I. G. Aznauryan +157

We report the measurement of near threshold neutral pion electroproduction cross sections and the extraction of the associated structure functions on the proton in the kinematic ra…

nucl-ex2012★ 51 cited

Evidence for the Onset of Color Transparency in $ρ^{0}$ Electroproduction off Nuclei

L. El Fassi, L. Zana, K. Hafidi +154

We have measured the nuclear transparency of the incoherent diffractive $A (e, e^{'} ρ^{0})$ process in $^{12}$ C and $^{56}$ Fe targets relative to $^{2}$ H using a 5 GeV electron beam. The nu…

nucl-ex2011★ 67 cited

Measurement of the neutron F2 structure function via spectator tagging with CLAS

N. Baillie, S. Tkachenko, J. Zhang +147

We report on the first measurement of the F2 structure function of the neutron from semi-inclusive scattering of electrons from deuterium, with low-momentum protons detected in the…

nucl-ex2011★ 21 cited

Electromagnetic Decay of the $Σ^{0} (1385)$ to $Λ γ$

D. Keller, K. Hicks, CLAS Collaboration

The electromagnetic decay $Σ^{0} (1385) \to Λ γ$ was studied using the CLAS detector at the Thomas Jefferson National Accelerator Facility. A real photon beam with a maximum energy of…

Form Factors and Two-Photon Exchange in High-Energy Elastic Electron-Proton Scattering

Beam-Target Helicity Asymmetry E in K0Λ and K0Σ0 Photoproduction on the Neutron

Semi-Inclusive π0​ target and beam-target asymmetries from 6 GeV electron scattering with CLAS

First Exclusive Measurement of Deeply Virtual Compton Scattering off 4He: Toward the 3D Tomography of Nuclei

Photon beam asymmetry Σ in the reaction γ​p→pω for Eγ​ = 1.152 to 1.876 GeV

Differential Cross Section Measurements for γn→π−p Above the First Nucleon Resonance Region

Measurements of ep→e′π+π−p′ Cross Sections with CLAS at 1.40<W<2.0 GeV and 2.0<Q2<5.0 GeV2

The Beam-Target Helicity Asymmetry for γ​n→π−p in the {\bf{N∗} Resonance Region

Target and beam-target spin asymmetries in exclusive pion electroproduction for Q2>1 GeV2. II. ep→eπ0p

Measurement of Target and Double-spin Asymmetries for the ep​→eπ+(n) Reaction in the Nucleon Resonance Region at Low Q2

Target and Beam-Target Spin Asymmetries in Exclusive π+ and π− Electroproduction with 1.6 to 5.7 GeV Electrons

Measurement of two-photon exchange effect by comparing elastic e±p cross sections

First measurement of the helicity asymmetry E in η photoproduction on the proton

Precise Determination of the Deuteron Spin Structure at Low to Moderate Q2 with CLAS and Extraction of the Neutron Contribution

Determination of the Beam-Spin Asymmetry of Deuteron Photodisintegration in the Energy Region Eγ​=1.1−2.3 GeV

First Measurement of the Polarization Observable E in the p​(γ​,π+)n Reaction up to 2.25 GeV