Zobrazeno 1 - 10
of 2 419
pro vyhledávání: '"NUCLEON STRUCTURE FUNCTIONS"'
We have studied the deep inelastic scattering of polarized charged leptons from polarized nucleon targets and evaluated the polarized structure functions $g_{1,2}(x,Q^2)$ for protons and neutrons as well as the nucleon asymmetries $A_{1p}(x,Q^2)$ and
Externí odkaz:
http://arxiv.org/abs/2407.15410
Autor:
Can, K. U., Batelaan, M., Hannaford-Gunn, A., Horsley, R., Nakamura, Y., Perlt, H., Rakow, P. E. L., Schierholz, G., Stüben, H., Young, R. D., Zanotti, J. M.
The structure of hadrons relevant for deep-inelastic scattering are completely characterised by the Compton amplitude. A direct calculation of the Compton amplitude in a lattice QCD setup provides a way to accessing the structure functions, circumven
Externí odkaz:
http://arxiv.org/abs/2307.07904
Autor:
Can, K. Utku
Structure functions are the essential objects for understanding the deep inelastic scattering processes, providing valuable insight into the partonic structure of hadrons. A direct calculation of the Compton amplitude provides a complementary way to
Externí odkaz:
http://arxiv.org/abs/2212.09197
Autor:
Tsuji, Ryutaro, Aoki, Yasumichi, Ishikawa, Ken-Ichi, Kuramashi, Yoshinobu, Sasaki, Shoichi, Shintani, Eigo, Yamazaki, Takeshi
We present results for the nucleon structure functions and form factors obtained from 2+1 flavor lattice QCD with physical light quark masses ($m_{\pi}=135$ MeV) in a large spatial extent of about 10 fm. Our calculations are performed with the PACS10
Externí odkaz:
http://arxiv.org/abs/2112.15276
Autor:
Can, K. U., Hannaford-Gunn, A., Sankey, E., Horsley, R., Nakamura, Y., Perlt, H., Rakow, P. E. L., Schierholz, G., Stuben, H., Young, R. D., Zanotti, J. M.
We highlight QCDSF/UKQCD Collaboration's recent developments on computing the Compton amplitude directly via an implementation of the second order Feynman-Hellmann theorem. As an application, we compute the nucleon Compton tensor across a range of ph
Externí odkaz:
http://arxiv.org/abs/2110.01310
Autor:
Weigel, Herbert, Takyi, Ishmael
Publikováno v:
Symmetry 2021, 13, 108
We outline and review the computations of polarized and unpolarized nucleon structure functions within the bosonized Nambu-Jona-Lasinio chiral soliton model. We focus on a consistent regularization prescription for the Dirac sea contribution and pres
Externí odkaz:
http://arxiv.org/abs/2101.02114
Autor:
Blin, A. N. Hiller, Melnitchouk, W., Mokeev, V. I., Burkert, V. D., Chesnokov, V. V., Pilloni, A., Szczepaniak, A. P.
Publikováno v:
Phys. Rev. C 104, 025201 (2021)
Nucleon resonance contributions to the inclusive proton $F_2$ and $F_L$ structure functions are computed from resonance electroexcitation amplitudes in the mass range up to 1.75 GeV extracted from CLAS exclusive meson electroproduction data. Taking i
Externí odkaz:
http://arxiv.org/abs/2105.05834
Autor:
Takyi, I., Weigel, H.
Publikováno v:
Eur. J. Phys. A, 55 (2019) 128
We present numerical simulations for unpolarized and polarized structure functions in a chiral soliton model. The soliton is constructed self-consistently from quark fields from which the structure functions are extracted. Central to the project is t
Externí odkaz:
http://arxiv.org/abs/1903.11435
Autor:
Albayrak, I., Mamyan, V., Christy, M. E., Ahmidouch, A., Arrington, J., Asaturyan, A., Bodek, A., Bosted, P., Bradford, R., Brash, E., Bruell, A., Butuceanu, C, Coleman, S. J., Commisso, M., Connell, S. H., Dalton, M. M., Danagoulian, S., Daniel, A., Day, D. B., Dhamija, S., Dunne, J., Dutta, D., Ent, R., Gaskell, D., Gasparian, A., Gran, R., Horn, T., Huang, Liting, Huber, G. M., Jayalath, C., Johnson, M., Jones, M. K., Kalantarians, N., Liyanage, A., Keppel, C. E., Kinney, E., Li, Y., Malace, S., Manly, S., Markowitz, P., Maxwell, J., Mbianda, N. N., McFarland, K. S., Meziane, M., Meziani, Z. E., Mills, G. B, Mkrtchyan, H., Mkrtchyan, A., Mulholland, J., Nelson, J., Niculescu, G., Niculescu, I., Pentchev, L., Puckett, A., Punjabi, V., Qattan, I. A., Reimer, P. E., Reinhold, J., Rodriguez, V. M, Rondon-Aramayo, O., Sakuda, M., Sakumoto, W. K., Segbefia, E., Seva, T., Sick, I., Slifer, K., Smith, G. R, Steinman, J., Solvignon, P., Tadevosyan, V., Tajima, S., Tvaskis, V., Smith, G. R., Vulcan, W. F., Walton, T., Wesselmann, F. R, Wood, S. A., Ye, Zhihong
Publikováno v:
Phys. Rev. Lett. 123, 022501 (2019)
We present extractions of the nucleon non-singlet moments utilizing new precision data on the deuteron $F_2$ structure function at large Bjorken-$x$ determined via the Rosenbluth separation technique at Jefferson Lab Experimental Hall C. These new da
Externí odkaz:
http://arxiv.org/abs/1807.06061
Publikováno v:
Phys. Rev. D 97, 074012 (2018)
We derive two new sum rules for the unpolarized doubly virtual Compton scattering process on a nucleon, which establish novel low-$Q^2$ relations involving the nucleon's generalized polarizabilities and moments of the nucleon's unpolarized structure
Externí odkaz:
http://arxiv.org/abs/1712.03886