TY - JOUR UR - http://lib.ugent.be/catalog/pug01:8526054 ID - pug01:8526054 LA - eng TI - Tensor-polarized structure function b1 in the standard convolution description of the deuteron PY - 2017 JO - (2017) PHYSICAL REVIEW D SN - 2470-0010 SN - 2470-0029 PB - 2017 AU - Cosyn, Wim WE05 001999190814 801001870238 0000-0002-9312-8569 AU - Dong, Yu-Bing AU - Kumano, S AU - Sargsian, M AB - Tensor-polarized structure functions of a spin-1 hadron are additional observables, which do not exist for the spin-1/2 nucleon. They could probe novel aspects of the internal hadron structure. Twist-2 tensor-polarized structure functions are b1 and b2, and they are related by the Callan-Gross-like relation in the Bjorken scaling limit. In this work, we theoretically calculate b1 in the standard convolution description for the deuteron. Two different theoretical models, a basic convolution description and a virtual nucleon approximation, are used for calculating b1, and their results are compared with the HERMES measurement. We found large differences between our theoretical results and the data. Although there is still room to improve by considering higher-twist effects and in the experimental extraction of b1 from the spin asymmetry Azz, there is a possibility that the large differences require physics beyond the standard deuteron model for their interpretation. Future b1 studies could shed light on a new field of hadron physics. In particular, detailed experimental studies of b1 will start soon at the Thomas Jefferson National Accelerator Facility. In addition, there are possibilities to investigate tensor-polarized parton distribution functions and b1 at Fermi National Accelerator Laboratory and a future electron-ion collider. Therefore, further theoretical studies are needed for understanding the tensor structure of the spin-1 deuteron, including a new mechanism to explain the large differences between the current data and our theoretical results. ER -Download RIS file
00000nam^a2200301^i^4500 | |||
001 | 8526054 | ||
005 | 20170705134743.0 | ||
008 | 170630s2017------------------------eng-- | ||
022 | a 2470-0010 | ||
022 | a 2470-0029 | ||
024 | a 000400142000005 2 wos | ||
024 | a 1854/LU-8526054 2 handle | ||
024 | a 10.1103/physrevd.95.074036 2 doi | ||
040 | a UGent | ||
245 | a Tensor-polarized structure function b1 in the standard convolution description of the deuteron | ||
246 | a Tensor-polarized structure function b(1) in the standard convolution description of the deuteron | ||
260 | c 2017 | ||
520 | a Tensor-polarized structure functions of a spin-1 hadron are additional observables, which do not exist for the spin-1/2 nucleon. They could probe novel aspects of the internal hadron structure. Twist-2 tensor-polarized structure functions are b1 and b2, and they are related by the Callan-Gross-like relation in the Bjorken scaling limit. In this work, we theoretically calculate b1 in the standard convolution description for the deuteron. Two different theoretical models, a basic convolution description and a virtual nucleon approximation, are used for calculating b1, and their results are compared with the HERMES measurement. We found large differences between our theoretical results and the data. Although there is still room to improve by considering higher-twist effects and in the experimental extraction of b1 from the spin asymmetry Azz, there is a possibility that the large differences require physics beyond the standard deuteron model for their interpretation. Future b1 studies could shed light on a new field of hadron physics. In particular, detailed experimental studies of b1 will start soon at the Thomas Jefferson National Accelerator Facility. In addition, there are possibilities to investigate tensor-polarized parton distribution functions and b1 at Fermi National Accelerator Laboratory and a future electron-ion collider. Therefore, further theoretical studies are needed for understanding the tensor structure of the spin-1 deuteron, including a new mechanism to explain the large differences between the current data and our theoretical results. | ||
598 | a A1 | ||
100 | a Cosyn, Wim u WE05 0 001999190814 0 801001870238 0 0000-0002-9312-8569 | ||
700 | a Dong, Yu-Bing | ||
700 | a Kumano, S | ||
700 | a Sargsian, M | ||
650 | a Physics and Astronomy | ||
653 | a DEEP-INELASTIC-SCATTERING | ||
653 | a GENERALIZED PARTON DISTRIBUTIONS | ||
653 | a SPIN-ONE HADRONS | ||
653 | a ELECTRON-SCATTERING | ||
653 | a FLAVOR ASYMMETRY | ||
653 | a NUCLEON | ||
653 | a MESONS | ||
653 | a QUARKS | ||
653 | a SEA | ||
653 | a QCD | ||
773 | t PHYSICAL REVIEW D g Phys. Rev. D. 2017. 95 (7) q 95:7< | ||
856 | 3 Full Text u https://biblio.ugent.be/publication/8526054/file/8526055 z [open] y PhysRevD.95.074036.pdf | ||
920 | a article | ||
852 | x WE b WE05 | ||
922 | a UGENT-WE |
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