Effects of nuclear deformation on the form factor for direct dark matter detection
For the detection of direct dark matter, in order to extract useful information about the funda- mental interactions from the data, it is crucial to properly determine the nuclear form factor. The form factor for the spin-independent cross section of collisions between dark matter particles and the...
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Published in | Chinese physics C Vol. 36; no. 6; pp. 505 - 512 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
01.06.2012
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Online Access | Get full text |
ISSN | 1674-1137 0254-3052 |
DOI | 10.1088/1674-1137/36/6/005 |
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Abstract | For the detection of direct dark matter, in order to extract useful information about the funda- mental interactions from the data, it is crucial to properly determine the nuclear form factor. The form factor for the spin-independent cross section of collisions between dark matter particles and the nucleus has been thoroughly studied by many authors. When the analysis was carried out, the nuclei were always supposed to be spherically symmetric. In this work, we investigate the effects of the deformation of nuclei from a spherical shape to an ellipticM one on the form factor. Our results indicate that as long as the ellipticity is not too large, such deformation will not cause any substantial effects. In particular, when the nuclei are randomly orientated in room-temperature circumstances, one can completely neglect them. |
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AbstractList | For the detection of direct dark matter, in order to extract useful information about the fundamental interactions from the data, it is crucial to properly determine the nuclear form factor. The form factor for the spin-independent cross section of collisions between dark matter particles and the nucleus has been thoroughly studied by many authors. When the analysis was carried out, the nuclei were always supposed to be spherically symmetric. In this work, we investigate the effects of the deformation of nuclei from a spherical shape to an elliptical one on the form factor. Our results indicate that as long as the ellipticity is not too large, such deformation will not cause any substantial effects. In particular, when the nuclei are randomly orientated in room-temperature circumstances, one can completely neglect them. For the detection of direct dark matter, in order to extract useful information about the funda- mental interactions from the data, it is crucial to properly determine the nuclear form factor. The form factor for the spin-independent cross section of collisions between dark matter particles and the nucleus has been thoroughly studied by many authors. When the analysis was carried out, the nuclei were always supposed to be spherically symmetric. In this work, we investigate the effects of the deformation of nuclei from a spherical shape to an ellipticM one on the form factor. Our results indicate that as long as the ellipticity is not too large, such deformation will not cause any substantial effects. In particular, when the nuclei are randomly orientated in room-temperature circumstances, one can completely neglect them. |
Author | 陈亚正 谌俊谋 罗延安 申虹 李学潜 |
AuthorAffiliation | School of Physics, Nankai University, Tianjin 300071, China |
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Cites_doi | 10.1103/PhysRev.99.1615 10.1142/9789812386601_0001 10.1103/PhysRevC.13.1083 10.1142/S0218271811019608 10.1063/1.3293794 10.1103/PhysRev.104.1466 10.1103/PhysRevC.56.535 10.1088/0253-6102/55/6/21 10.1103/PhysRevD.31.3059 10.1103/PhysRevC.73.041301 10.1016/0375-9474(69)90809-4 10.1016/j.physletb.2010.12.064 10.1016/0370-2693(91)90712-Y 10.1006/adnd.1995.1002 10.1103/PhysRevD.82.023533 10.1016/S0927-6505(96)00047-3 10.1016/S0370-2693(03)00600-2 10.1088/1475-7516/2008/03/022 10.1103/PhysRevD.83.015001 10.1016/j.ppnp.2011.01.008 10.1103/PhysRev.101.1131 10.1103/PhysRevD.48.5519 10.1088/1475-7516/2007/04/012 10.1088/0954-3899/35/7/075101 10.1142/S0218271811019591 10.1016/0370-1573(95)00058-5 10.1103/PhysRevD.40.3132 |
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Notes | nuclear density, dark matter 11-5641/O4 CHEN Ya-Zheng CHEN Jun-Mou LUO Yan-An SHEN Hong LI Xue-Qian School of Physics, Nankai University, Tianjin 300071, China For the detection of direct dark matter, in order to extract useful information about the funda- mental interactions from the data, it is crucial to properly determine the nuclear form factor. The form factor for the spin-independent cross section of collisions between dark matter particles and the nucleus has been thoroughly studied by many authors. When the analysis was carried out, the nuclei were always supposed to be spherically symmetric. In this work, we investigate the effects of the deformation of nuclei from a spherical shape to an ellipticM one on the form factor. Our results indicate that as long as the ellipticity is not too large, such deformation will not cause any substantial effects. In particular, when the nuclei are randomly orientated in room-temperature circumstances, one can completely neglect them. ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
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Snippet | For the detection of direct dark matter, in order to extract useful information about the funda- mental interactions from the data, it is crucial to properly... For the detection of direct dark matter, in order to extract useful information about the fundamental interactions from the data, it is crucial to properly... |
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SubjectTerms | Collisions Cross sections (physics) Dark matter Deformation Ellipticity Form factors Nuclear deformation Nuclei 原子核 暗物质粒子 核变形 球对称 直接探测 相互作用 碰撞截面 随机取向 |
Title | Effects of nuclear deformation on the form factor for direct dark matter detection |
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