Hadron masses and screening from anti de Sitter space Wilson loops

被引:71
作者
Karch, A [1 ]
Katz, E [1 ]
Weiner, N [1 ]
机构
[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA
关键词
D O I
10.1103/PhysRevLett.90.091601
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We show that in strongly coupled N=4 supersymmetric Yang-Mills conformal theory the binding energy of a heavy and a light quark is independent of the strength of the coupling constant. As a consequence we are able to show that in the presence of light quarks the analog of the QCD string can snap and color charges are screened. The resulting neutral mesons interact with each other only via pion exchange and we estimate the masses of those states.
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页数:4
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共 8 条
[1]   Bulk gauge fields in the Randall-Sundrum model [J].
Davoudiasl, H ;
Hewett, JL ;
Rizzo, TG .
PHYSICS LETTERS B, 2000, 473 (1-2) :43-49
[2]   Wilson loops and minimal surfaces [J].
Drukker, N ;
Gross, DJ ;
Ooguri, H .
PHYSICAL REVIEW D, 1999, 60 (12)
[3]  
Kaloper N, 2001, J HIGH ENERGY PHYS
[4]   Adding flavor to AdS/CFT [J].
Karch, A ;
Katz, E .
JOURNAL OF HIGH ENERGY PHYSICS, 2002, (06) :1021-1036
[5]   Wilson loops in large N field theories [J].
Maldacena, J .
PHYSICAL REVIEW LETTERS, 1998, 80 (22) :4859-4862
[6]   The large-N limit of superconformal field theories and supergravity [J].
Maldacena, J .
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 1999, 38 (04) :1113-1133
[7]   Gauge bosons in a five-dimensional theory with localized gravity [J].
Pomarol, A .
PHYSICS LETTERS B, 2000, 486 (1-2) :153-157
[8]   Macroscopic strings as heavy quarks:: Large-N gauge theory and anti-de Sitter supergravity [J].
Rey, SJ ;
Yee, JT .
EUROPEAN PHYSICAL JOURNAL C, 2001, 22 (02) :379-394