Deconstruction of Unparticles

We discuss properties of hypothetical scale invariant (unparticle) matter by viewing it as a tower of massive particles. We show how peculiar properties of unparticles emerge in the limit when the mass spacing parameter Delta vanishes. We explain why unparticle cannot decay in this limit and how, for finite Delta, the decays manifest themselves in a relation between the reconstructed invariant mass and vertex displacement. We describe a model field theory in AdS5 which explicitly implements the deconstruction procedure by truncating the extra dimension to size of order 1/Delta.

11.15.Tk
14.80.-j
unparticle: deconstruction
scaling: invariance
space-time: anti-de Sitter
dimension: 5
unparticle: coupling
particle: decay
unparticle: interference
invariance: conformal

References(27)

Figures(0)

Unparticle physics

Howard Georgi
(
- Harvard U., Phys. Dept.
)

- Phys.Rev.Lett. 98 (2007) 221601
•
e-Print:
- hep-ph/0703260
•
DOI:
- 10.1103/PhysRevLett.98.221601

Another odd thing about unparticle physics

Howard Georgi
(
- Harvard U., Phys. Dept.
)

- Phys.Lett.B 650 (2007) 275-278
•
e-Print:
- 0704.2457
•
DOI:
- 10.1016/j.physletb.2007.05.037

Collider signals of unparticle physics

Kingman Cheung
(
- Taiwan, Natl. Tsing Hua U. and
- NCTS, Hsinchu
)
,
Wai-Yee Keung
(
- Illinois U., Chicago
)
,
Tzu-Chiang Yuan
(
- Taiwan, Natl. Tsing Hua U.
)

- Phys.Rev.Lett. 99 (2007) 051803
•
e-Print:
- 0704.2588
•
DOI:
- 10.1103/PhysRevLett.99.051803

Some phenomenologies of unparticle physics

Mingxing Luo
(
- Zhejiang U.
)
,
Guohuai Zhu
(
- Zhejiang U.
)

- Phys.Lett.B 659 (2008) 341-344
•
e-Print:
- 0704.3532
•
DOI:
- 10.1016/j.physletb.2007.10.058

Unparticle physics on direct CP violation

Chuan-Hung Chen
(
- Taiwan, Natl. Cheng Kung U. and
- NCTS, Taipei
)
,
Chao-Qiang Geng
(
- Taiwan, Natl. Tsing Hua U. and
- TRIUMF
)

- Phys.Rev.D 76 (2007) 115003
•
e-Print:
- 0705.0689
•
DOI:
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Unparticle physics in DIS

Gui-Jun Ding
(
- Hefei, CUST
)
,
Mu-Lin Yan
(
- Hefei, CUST
)

- Phys.Rev.D 76 (2007) 075005
•
e-Print:
- 0705.0794
•
DOI:
- 10.1103/PhysRevD.76.075005

Bounds on unparticles couplings to electrons: From electron g-2 to positronium decays

Yi Liao
(
- Nankai U.
)

- Phys.Rev.D 76 (2007) 056006
•
e-Print:
- 0705.0837
•
DOI:
- 10.1103/PhysRevD.76.056006

Lepton flavour violation in unparticle physics

T.M. Aliev
(
- Middle East Tech. U., Ankara
)
,
Alan S. Cornell
(
- Lyon, IPN
)
,
Naveen Gaur
(
- KEK, Tsukuba
)

- Phys.Lett.B 657 (2007) 77-80
•
e-Print:
- 0705.1326
•
DOI:
- 10.1016/j.physletb.2007.09.055

Unparticle Physics Effects on D0 - anti-D0 Mixing

Xue-Qian Li
(
- Nankai U.
)
,
Zheng-Tao Wei
(
- Nankai U.
)

- Phys.Lett.B 651 (2007) 380-383
•
e-Print:
- 0705.1821
•
DOI:
- 10.1016/j.physletb.2007.06.045

Echoes of a hidden valley at hadron colliders

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•
e-Print:
- hep-ph/0604261
•
DOI:
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Gauge theory correlators from noncritical string theory

S.S. Gubser
(
- Princeton U.
)
,
Igor R. Klebanov
(
- Princeton U.
)
,
Alexander M. Polyakov
(
- Princeton U.
)

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•
e-Print:
- hep-th/9802109
•
DOI:
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Edward Witten
(
- Princeton, Inst. Advanced Study
)

- Adv.Theor.Math.Phys. 2 (1998) 253-291
•
e-Print:
- hep-th/9802150
•
DOI:
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The Large $N$ limit of superconformal field theories and supergravity

Juan Martin Maldacena
(
- Harvard U.
)

- Int.J.Theor.Phys. 38 (1999) 1113-1133 (reprint),
- Adv.Theor.Math.Phys. 2 (1998) 231-252
•
e-Print:
- hep-th/9711200
•
DOI:
- 10.4310/ATMP.1998.v2.n2.a1