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Tensor-polarized structure function b(1) in the standard convolution description of the deuteron
Cosyn, W.1; Dong, Yu-Bing2,3; Kumano, S.4,5,6; Sargsian, M.7
刊名Physical review d
2017-04-24
卷号95期号:7页码:13
ISSN号2470-0010
DOI10.1103/physrevd.95.074036
通讯作者Cosyn, w.()
英文摘要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 b(1) and b(2), and they are related by the callan-gross-like relation in the bjorken scaling limit. in this work, we theoretically calculate b(1) 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 b(1), 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 b(1) from the spin asymmetry a(zz), there is a possibility that the large differences require physics beyond the standard deuteron model for their interpretation. future b(1) studies could shed light on a new field of hadron physics. in particular, detailed experimental studies of b(1) will start soon at the thomas jefferson national accelerator facility. in addition, there are possibilities to investigate tensor-polarized parton distribution functions and b(1) 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.
WOS关键词DEEP-INELASTIC-SCATTERING ; GENERALIZED PARTON DISTRIBUTIONS ; SPIN-ONE HADRONS ; ELECTRON-SCATTERING ; FLAVOR ASYMMETRY ; NUCLEON ; MESONS ; QUARKS ; SEA ; QCD
WOS研究方向Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000400142000005
内容类型期刊论文
URI标识http://www.corc.org.cn/handle/1471x/2177197
专题高能物理研究所
通讯作者Cosyn, W.
作者单位1.Univ Ghent, Dept Phys & Astron, Proeftuinstr 86, B-9000 Ghent, Belgium
2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
4.High Energy Accelerator Res Org KEK, Inst Particle & Nucl Studies, KEK Theory Ctr, 1-1 Ooho, Tsukuba, Ibaraki 3050801, Japan
5.KEK, Inst Particle & Nucl Studies, KEK Theory Ctr, J PARC Branch, 203-1 Shirakata, Tokai, Ibaraki 3191106, Japan
6.J PARC Ctr, Theory Grp, Particle & Nucl Phys Div, 203-1 Shirakata, Tokai, Ibaraki 3191106, Japan
7.Florida Int Univ, Dept Phys, Miami, FL 33199 USA
推荐引用方式
GB/T 7714
Cosyn, W.,Dong, Yu-Bing,Kumano, S.,et al. Tensor-polarized structure function b(1) in the standard convolution description of the deuteron[J]. Physical review d,2017,95(7):13.
APA Cosyn, W.,Dong, Yu-Bing,Kumano, S.,&Sargsian, M..(2017).Tensor-polarized structure function b(1) in the standard convolution description of the deuteron.Physical review d,95(7),13.
MLA Cosyn, W.,et al."Tensor-polarized structure function b(1) in the standard convolution description of the deuteron".Physical review d 95.7(2017):13.
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