[A1n_d2n] [EXTERNAL] Abstract for the d2n talk in DIS2022

[Roy, Murchhana]

Good morning, everyone,

I have drafted an abstract for the d2n talk in the upcoming DIS2022. It would be helpful if you could give your feedback on this.

Search for higher twist effects in the neutron using polarized inclusive deep inelastic scattering 1
Murchhana Roy on behalf of the E12-06-121 and E12-06-110 Collaborations
University of Kentucky

Experiment E12-06-121 at Jefferson Lab aims to do a precision measurement of the neutron spin structure function g2 using inclusive inelastic scattering of electrons over a large kinematic range of xBj and Q2. As one of the cleanest higher twist observables, g2 contains information on the quark-gluon correlations, and d2, the third moment of the linear combination of the spin structure functions g1 and g2, is connected to the “color polarizability” of the nucleon. The experiment was performed and successfully completed in Hall C using a longitudinally polarized 10.4 GeV electron beam, and a polarized helium-3 gas target. The combination of Super High Momentum Spectrometer (SHMS) and High Momentum Spectrometer (HMS) allowed us to run the experiment for three constant Q2 values (3, 4.3, and 5.6 GeV2/c2 ) over a wide range of xBj (0.20 < xBj < 0.95) for the first time. The extraction of d2n (Q2 ) will serve as a benchmark to the predictions from Lattice QCD. An overview of the experiment and the present status of the experimental data analysis will be presented.
1 This work is partially supported by the U.S. Department of Energy Office of Nuclear Physics under Contract No. DEFG02-99ER41101.


Thank you.

Murchhana Roy

Ph.D. Candidate

Department of Physics and Astronomy

University of Kentucky


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