Transcript Single heavy MSSM Higgs production at LC

Search for New Physics beyond the SM
DOE Review 2006
Shufang Su • U. of Arizona
Data from sky: WMAP, supernovae, sky survey, …
Experiments
Low energy
Precision
measurement
LC
LEP
e+
S. Su
e-
LHC (2007)
Tevatron (now)
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We live in a fascinating time when rich data is / will be available
My work focuses on searching for new physics beyond the SM
Involve experiments in
 Nuclear physics
 Particle physics
Dark Matter
 Astrophysics/Cosmology
Indirect
Searches
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Direct
Searches
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Students and Postdoc
 Postdoc
 Hock-Seng Goh (3rd year)
 Grad Students
 Ethan Dolle (4th year)
 Xinyu Miao (3rd year)
 Undergrad Students
 Jessica Goodman
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Dark Matter Studies
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Dark Matter
 » 0.5%
 » 0.5%
=3%
=23% § 4%
=73% § 4%
 Remarkable agreement
 Remarkable precision (~10%)
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Research and Collaborations
 superWIMP Dark Matter
J. Feng (UC Irvine), F. Takayama (Cornell)
 SuperWIMP Cosmology and Collider Physics
Jonathan L. Feng, Arvind Rajaraman, Bryan T. Smith, Shufang Su, Fumihiro Takayama,
hep-ph/0410178.
 SuperWIMP Dark Matter in Supergravity with a Gravitino
Jonathan L. Feng, Shufang Su, Fumihiro Takayama, hep-ph/0410119.
 Supergravity with a Gravitino LSP
Jonathan L. Feng, Shufang Su, Fumihiro Takayama, Phys.Rev. D70 (2004) 075019.
 SuperWIMP Gravitino Dark Matter from Slepton and Sneutrino Decays
Jonathan L. Feng, Shufang Su, Fumihiro Takayama, Phys.Rev. D70 (2004) 063514.
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superWIMP
Thermal equilibrium
 
$ ffsuperWIMP
WIMP
WIMP
+ SM particles
Universe cools:
n=nEQe-m/T
FRT hep-ph/0302215, 0306024
104 s  t  108 s
Freeze out, n/s » const
SWIMP
SM
superWIMP
e.g. Gravitino LSP
LKK graviton
WIMP
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 neutral
 charged
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Research and Collaborations
 Dark Matter Production at Colliders
J. Feng (UC Irvine), F. Takayama (Cornell)
 Minimum Rates for Dark Matter Production at the Large Hadron
Collider and International Linear Collider
Jonathan L. Feng, Shufang Su, Fumihiro Takayama, Phys. Rev. Lett. 96, 151802 (2006)
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Dark Matter Production at Colliders
DM
f
f
DM
Cross symmetry
f
DM
f
DM annihilation
 / 1/h  i
Not overclose universe

Efficient annihilation then
DM production
Efficient production at collider
Lower bound on rates
Upper bound on 
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DM
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SuperWIMP with charged WIMP at LHC
Signal: two isolated charged tracks, large dE/dx
||  2.5,   0.7
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Research and Collaborations
 Dark matter of the left-right twin Higgs model
E. Dolle (UA), J. Goodman (U. of Arizona)
 Dark Matter of the Left-Right Twin Higgs Model
E. Dolle, J. Goodman, S. Su, in preparation.
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Indirect Searches for New Physics
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Research and Collaborations
 Low Energy Precision SUSY
A. Kurylov, M. Ramsey-Musolf, Sean Tulin (Caltech)
 Charged Current Universality Problem and NuTeV Anomaly: IS SUSY to
Blame?
Andriy Kurylov, Michael Ramsey-Musolf, Shufang Su, AIP Conf.Proc.698 (2004) 188.
 Probing Supersymmetry with Neutral Current Scattering Experiments
Andriy Kurylov, Michael Ramsey-Musolf, Shufang Su, AIP Conf.Proc.698 (2004) 168.
 Supersymmetric Effects in Parity Violating Deep Inelastic Electron
Nucleus Scattering
Andriy Kurylov, Michael Ramsey-Musolf, Shufang Su, Phys.Lett.B582:222-228,2004.
 Probing Supersymmetry with Parity Violating Electron Scattering
Andriy Kurylov, Michael Ramsey-Musolf, Shufang Su, Phys.Rev.D68:035008,2003.
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Research and Collaborations
 Low Energy Precision SUSY (cont’)
A. Kurylov, M. Ramsey-Musolf, Sean Tulin (Caltech)
 Supersymmetric Effects in Deep Inelastic Neutrino Nucleus Scattering
Andriy Kurylov, Michael Ramsey-Musolf, Shufang Su, Nucl.Phys.B667:321-348,2003 .
 SUSY Effects in Pion Decay
Michael Ramsey-Musolf, Shufang Su, Sean Tulin, in preparation.
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Møller Scattering
e
e
e
e
g
Q-Weak (JLab)
DIS-Parity
e
e
g Z
Z
g
Z
p
n
e
• Purely leptonic
• Coherent quarks in P
• Results in ~2009
• 2(2C1u+C1d)
Atomic Parity Violation
e
• Isoscaler quark scattering
• (2C1u-C1d)+Y(2C2u-C2d)
Neutrino Scattering
n
g
Z
• Coherent quarks in entire nucleus
• Nuclear structure uncertainties
• -376 C1u – 422 C1d
n
m
W
Cs133
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n
Z
• Quark scattering (from
nucleus)
• Weak charged and neutral
current difference
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Test of sin2W Running
Weak mixing angle sinW
g sinW = g’ cosW = e
0.25
QWe
current
0.245
future
SM
0.24
Jlab Moller
Q W (p)
Qweak
SLAC E158
eD-DIS
n-DIS
Q W (e)
A FB
NuTeV
APV
0.235
Cs APV
Z-pole
0.23
DIS-parity
Standard Model Prediction
Erler, Kurylov & Ramsey-Musolf,
Phys. Rev. D 72, 073003 (2005)
0.225
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0.001
0.01
0.1
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Q [GeV]
100
1000
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Parity-Violating Electron Scattering
Kurylov, Ramsey-Musolf, Su (2003)
RPV 95% CL
No SUSY DM
MSSM
loop
4% Qweak
Future 2.5%
Moller
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Research and Collaborations
 Physics report review paper: Low Energy Precision Supersymmetry
Michael Ramsey-Musolf, Shufang Su, to appear.
 Introduction to supersymmetry
 Renormalization
 Z-pole precision measurements
 Neutral current studies
 Charge current studies
 Flavor physics, CP violation and baryongenesis
 Higgs searches
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Research and Collaborations
 Precision studies of MSSM
M. Ramsey-Musolf, Sean Tulin (Caltech)
 MSSM Contribution to Precision Observables
Michael Ramsey-Musolf, Shufang Su, Sean Tulin, in preparation.
 Precision Study of SUGRA, GMSB and AMSB
A. Dedes (Munich), S. Heinemeyer (CERN), G. Weiglein
(IPPP, Durham), X. Miao (UA)
 The Lightest Higgs Boson of mSUGRA, mGMSB and mAMSB at Present
and Future Colliders: Observability and Precision Analyses
Dedes, Sven Heinemeyer, X. Miao, Shufang Su, Georg Weiglein,Nucl.Phys.B674:271-305,2003.
 Distinguish SUSY Breaking Scenario in Precision Studies
Sven Heinemeyer, X. Miao, Shufang Su, Georg Weiglein, in preparation.
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Precision Study of SUGRA, GMSB and AMSB
GMSB @ ILC
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Direct Searches for New Physics
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Research and Collaborations
 Collider Study of the left-right twin Higgs Model
H.S. Goh (UA)
 Collider Phenomenology of the Left-Right Twin Higgs Model
Hock-Seng Goh, Shufang Su, hep-ph/0611015
 Collider Signatures of the Left-Right Twin Higgs Model
Hock-Seng Goh, Shufang Su, hep-ph/0608330
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LRTH: Parameters and Spectrum
 Model parameters: f1, (f2, y), , M, B, m
fixed by Higgs VEV
fixed by top quark mass
 Determine particle masses and interactions
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= 4f1 or 2f1
M=150 GeV
B=50 GeV
m = f1/2
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Heavy Gauge Bosons
 Drell-Yan process
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ZH decay
 ZH
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Research and collaborations
 Collider Study of the Left-Right Twin Higgs Model (cont’)
 Heavy Top Quark of the Left-Right Twin Higgs Model
X. Miao, Shufang Su, in preparation.
3 b + 1 j + 1 lepton + missing ET
b
j
b

l
t
tH
W
b
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n
Research and collaborations
 Collider Study of left-right twin Higgs Model (cont’)
 Identify the Twin Higgs Mechanism at Colliders
Shufang Su, in preparation.
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Research and collaborations
 Distinguish New Physics at Colliders
 Left-Right Twin Higgs Model vs. Little Higgs Models
heavy top quark, heavy gauge bosons
 Left-Right Twin Higgs Model vs. Two-Higgs Doublet Models
extra Higgses
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Research and collaborations
 Neutralino LSP vs. Sneutrino LSP
C. P. Yuan (Michigan State U.)
Same signal, different interpretation
vs.
Can be studied at LHC by
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Research and Collaborations
 Propagation of High Energy Charged Slepton
M. H. Reno (U. IOWA), I. Sarcevic (UA)
 Propagation of Supersymmetric Charged Sleptons at High Energies
Mary H. Reno, Ina. Sarcevic, Shufang Su, Astropart. Phys. 24 (2005) 107.
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Long Lived Stau
Gravitino LSP
Stau NLSP
n
Albuquerque, Chacko
and Burdman (2003)
earth
n
earth
Msl=250 GeV
Mwino=250 GeV
Larger production rate
smaller production rate
 = 2.197£ 10-6 sec
c=659 meter
Larger effective detector volume
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Radiative Energy Loss: 
Crucial to determine the energy loss of the high energy
stau as it traverse the earth
 photonuclear
 bremstraahlung
 pair production
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radiative energy loss and stau range
Stau
lifetime
m=250 GeV
m=150 GeV
/ 1/m
/ 1/m2
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Activities
 Invited plenary talk at subZ workshop
 Neutral Current Overview
“From Zero to Z0”, May, 2004, Fermilab.
 Invited plenary talk at Aspen winter conference
 Gravitino dark matter
“The Highest Energy Physics”, February, 2005, Aspen, CO.
 Colloquium at University of Wisconsin, Madison
 Dark matter
May, 2005, Madison, WI.
 Invited lecture at Summer Institute 2005
 Dark Matters: WIMP and beyond
August, 2005, Fujiyoshida, Japan.
 Invited lecture at CCAST workshop
 Dark matter and collider physics
“LHC and Dark Matter”, Dec, 2005, Beijing, China.
 Invited talk at Jefferson Lab Hall C workshop
 Theory overview on neutral current measurements
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Aug, 2006, Jefferson Lab.
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Organization of conferences/workshops
 From Zero to Z0, a workshop on precision electroweak physics
May, 2004, Fermilab
 Flavor physics workshop
Summer 2008, Kavli Institute in Beijing
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Future Directions
 LHC related physics: understand what data really means
 QCD issue
 Simulation tools for new physics and SM background
 Experimental physics observables/ capabilities …
 Detector
 Interplay between particle physics and cosmology
 Determine dark matter properties at colliders
 Direct and indirect dark matter detection
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