Deuteron electric dipole moment from holographic QCD

被引:1
作者
Bartolini, Lorenzo [1 ,2 ]
Bolognesi, Stefano [1 ,2 ]
Gudnason, Sven Bjarke [3 ]
机构
[1] Univ Pisa, Dept Phys Enrico Fermi, 3 Edificio C, I-56127 Pisa, Italy
[2] Ist Nazl Fis Nucl, Sez Pisa Largo Pontecorvo, 3 Edificio C, I-56127 Pisa, Italy
[3] Henan Univ, Inst Contemporary Math, Sch Math & Stat, Kaifeng 475004, Henan, Peoples R China
基金
中国国家自然科学基金;
关键词
NEUTRON; BARYONS;
D O I
10.1103/PhysRevD.101.086009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We compute the electric dipole moment (EDM) of the deuteron in the holographic QCD model of Witten-Sakai-Sugimoto. Previously, the leading contribution to the EDM of nucleons was computed, finding opposite values for the proton and the neutron, which then cancel each other in the deuteron state. Here we compute the next-to-leading order contribution, which provides a splitting between their absolute value. At large N-c and large 't Hooft coupling lambda, nuclei are bound states of almost isolated nucleons. In particular, we find that in this limit the deuteron EDM is given by the splitting between proton and neutron EDMs. Our estimate for the deuteron EDM extrapolated to the physical values of N-c, lambda, M-KK, and m(q) is d(d) = -0.92 x 10(16)theta e . cm. This is consistent, in sign and magnitude, with results found previously in the literature and obtained using completely different methods.
引用
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页数:19
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共 33 条
[11]   Electric dipole moments of light nuclei from chiral effective field theory [J].
de Vries, J. ;
Higa, R. ;
Liu, C. -P. ;
Mereghetti, E. ;
Stetcu, I. ;
Timmermans, R. G. E. ;
van Kolck, U. .
PHYSICAL REVIEW C, 2011, 84 (06)
[12]   P and T Violating Form Factors of the Deuteron [J].
de Vries, J. ;
Mereghetti, E. ;
Timmermans, R. G. E. ;
van Kolck, U. .
PHYSICAL REVIEW LETTERS, 2011, 107 (09)
[13]   THE ELECTRIC-DIPOLE MOMENT OF THE NEUTRON IN THE SKYRME MODEL [J].
DIXON, LJ ;
LANGNAU, A ;
NIR, Y ;
WARR, B .
PHYSICS LETTERS B, 1991, 253 (3-4) :459-464
[14]   Electric Dipole Moment of the Neutron from 2+1 Flavor Lattice QCD [J].
Guo, F. -K. ;
Horsley, R. ;
Meiner, U. -G. ;
Nakamura, Y. ;
Perlt, H. ;
Rakow, P. E. L. ;
Schierholz, G. ;
Schiller, A. ;
Zanotti, J. M. .
PHYSICAL REVIEW LETTERS, 2015, 115 (06)
[15]   Quark mass dependence of the hadron spectrum in holographic QCD [J].
Hashimoto, Koji ;
Hirayama, Takayuki ;
Hong, Deog Ki .
PHYSICAL REVIEW D, 2010, 81 (04)
[16]   Holographic Baryons - Static Properties and Form Factors from Gauge/String Duality [J].
Hashimoto, Koji ;
Sakai, Tadakatsu ;
Sugimoto, Shigeki .
PROGRESS OF THEORETICAL PHYSICS, 2008, 120 (06) :1093-1137
[17]   Baryons from instantons in holographic QCD [J].
Hata, Hiroyuki ;
Sakai, Tadakatsu ;
Sugimoto, Shigeki ;
Yamato, Shinichiro .
PROGRESS OF THEORETICAL PHYSICS, 2007, 117 (06) :1157-1180
[18]   Chiral dynamics of baryons from string theory [J].
Hong, Deog Ki ;
Rho, Mannque ;
Yee, Ho-Ung ;
Yi, Piljin .
PHYSICAL REVIEW D, 2007, 76 (06)
[19]   Holographic deuteron and nucleon-nucleon potential [J].
Kim, Youngman ;
Lee, Sangmin ;
Yi, Piljin .
JOURNAL OF HIGH ENERGY PHYSICS, 2009, (04)
[20]   Probing CP violation with the deuteron electric dipole moment -: art. no. 016003 [J].
Lebedev, O ;
Olive, KA ;
Pospelov, M ;
Ritz, A .
PHYSICAL REVIEW D, 2004, 70 (01) :016003-1