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Atami Summary. 熱海温泉. Atami(onsen). - PowerPoint PPT Presentation
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Atami Summary
Tokugawa Ieyasu (1543-1616), Japan’s most famous shogun who brought the whole country under his rule, liked to visit Atami. He was so impressed by the quality of the hot spring that he ordered barrels of water to be hauled back to Edo (present day Tokyo) at immense effort and expense.
熱海温泉Atami(onsen)
A slide from Alexey Drutskoy
Are there New Physics Phases and New sources of CP Violation Beyond the SM ?
Are there right-handed currents ?
Are there new flavor changing neutral currents ?
Are there new operators with quarks enhanced by New Physics ?
Fundamental Questions in Flavor Physics
Experiments: bs CPV, compare CPV angles from tree and loops
Experiments: AFB(BK*l l), BK rates and asymmetries
Experiments: bs CPV, B->VPγ or BV V triple-product asymmetries
Experiments: bs ννbar, D-Dbar CPV+mixing+rare, τγ
These questions can be answered at a Super B Factory.
Why three generations ?
String Theory ? (e.g. P.Binetruy et.al.,
hep-th/0509157; J.Phys G.32: 129 (2006)); Larger Symmetry Groups ? (see Kubo’s talk)
Experiments with quarks or heavy leptons?
This question is probably too hard – more tractable questions…..
New Physics Flavor Problem
New Physics (SUSY, extra dimensions etc….) has new particles with new couplings and phases
These new particles induce FCNC. If there is no non-trivial flavor structure, current results would suggest the new physics scale is 10000 TeV. (not accessible at LHC)
If there is new physics at the 1 TeV (0.1 TeV) energy scale, then it has a highly non-trivial flavor structure.
Yuval Grossman, Tim Gershon
Minimal flavor violation (MFV): not a worst case scenario, you have made a great discovery. There is a new symmetry !
Lessons of History I New Physics is usually discovered first in loop
processes, which involve high mass virtual particles. (Heisenberg Uncertainty Principle)
Beautiful and precise measurements of the top quark mass at the Tevatron. However, the couplings |Vts|, |Vtd,| and most importantly the phase of (Vtd) cannot be measured in direct top production.
Example I: Absence of KL allowed theorists to deduce the existence of the charm quark. The rate of K mixing allowed a rough determination of the charm mass.
Example II: The absence of bs decays and the long B lifetime ruled out topless models. Large Bd mixing showed the top was heavy contrary to theory prejudices of the time. Radiative corrections from Z measurements determined the rough range of the top mass.
Vtd
Vtd
Nishida: “DNA Identification” of new physics
Popularized by Hazumi and Hitlin
Examine correlations between flavor physics observables
M. Spiropuluar;arXiv:0801.0318
“DNA identification”of new physics
(Also see talks by Goto, Kubo, Eigen)
Nature 451, 498 (24 January 2008) | doi:10.1038/451498a; Published online 23 January 2008
SuperBJanet Wright1
Top of pageAbstractRaise a glass to world domination.
The SuperB virus spread like wildfire — which was funny, really, because we'd put it in the water.Forty years I spent perfecting it, while people were laughing behind their hands. Poor drunken old Dr J, mad as a bat in her dusty old lab, doing her useless antiviral work. Or so they thought. They're not laughing at me now, are they?
Once we'd perfected SuperB, my dedicated little group scattered it around the globe. The virus was sprinkled into the headwaters of the Nile, dripped into remote springs and slipped directly into the water glass of a particularly irritating politician. Released into reservoirs, SuperB was lifted into the clouds to fall on fields and gardens. It was sipped from bottles by yuppies and from streams by goat-herders. And it was so powerful that a few drops of rain turned an entire well into a SuperB reservoir.
Warning: Satirical Biology Article in Nature
High Luminosity at Japanese Hot Springs
1035 1036
2 x 1035 8 x 1035
Laboratory resources
B Factory Super B factory
Water Temperature
Talks by Sakai, Gershon, Ohnishi, Biagini, Nakanishi
Time
From Tim Gershon@Atami
No “Soft Landing” at 1035Message to KEK administration
(5 Year Plan)
KEK Web page
+20 page reportSakai’s talk
KEK’s 5 year Roadmap• Official 20 page report released on January 4, 2008
by director A. Suzuki and KEK management• KEKB’s upgrade to 2x1035 in 3+x years is the
central element in particle physics. (Higher luminosity is not excluded in any way but is limited by future funding)– Will be finalized after recommendations by the Roadmap
Review Committee (March 9-10).• Membership: Young Kee Kim, John Ellis, Rolf Heuer, Jon
Rosner, Andrew Hutton and reviewers from material science
and other fields.
Super-Belle (and Super KEKB) is an open international project.
Question: 39 nanometer beam spot in y, 6 microns in x. Is this possible in a real 2-3 km circumference multi-orbit machine ?
Conceptual Design Report has been finished. Intl Review committee in progress.
Beam size
New site next to Frascati (Tor Vergata)
(Collaboration on beam dynamics with Agoh, Ohmi, Ohnishi)Talks by Biagini, Gershon
TDR in 2010
Very Important: Test of the crab waist at DAFNE
M. Biagini
Expect ~x 2 from crab waist
But will not test nanometer beams
Brillant and deep idea from P. Raimondi, first proposed in Hawaii
Ohnishi+ non-linear effects and machine errors
commissioningHER
OFF ON 0°
Talks by Nakanishi, Ohnishi
No longer science fiction (proposed 30 years ago Palmer/Oide)
Emerging competition and interaction with LHCb and eventually superLHCb
Muon detector
Calorimeters
RICH-2
Magnet
OT
VELO
RICH-1
Construction almost final. Detector Commissioning ongoing
hep-ph/0604112hep-ph/0509242
s from Bs J/
• Analysis Method– B VV mode
– Angular analysis s Sensitivity
– studied at ms = 20 ps–1
– Yield: 131k Bs J/ signal events per 2 fb–1 (1 year)
– Expected precision (sin s) ~ 0.023 2 fb–1 (sin s) ~ 0.042 0.5 fb–1
(sin s) ~ 0.010 10 fb–1
total
CP even
CP oddflat background
SMq
iqq mehm q 21
CDF 2006 ms
LHCb 2 fb-1
Bs J/
CERN-LHCb-2006-047
Muheim, Wilkinson
+Casey from Tevatron
NP Phase Talks by Casey, Renga: Do not neglect Upsilon(5S) analyses
• Highly suppressed in SM– Prediction BR(BS) = (3.86±0.15)10–9
– could be strongly enhanced in SUSY
• Constrained MSSM– BR(BS) ~ tan6/MH
2
– Predicts much largerBR(BS) ~ a few 10-9 to 10-7
• Muon anomalous magnetic moment g-2 a = (25.2 ± 9.2) 10-10 (BNL)
– disagrees with SM at 2.7– predicts gaugino mass m1/2
in range 250 - 650 GeV
• Current best limit
– from CDF+D0 is BR(BS) < 5.810–8 (95% CL )
SM prediction
LHCb can explore New Physics in Bs
W
W
b
s
t
SM
10-9
10-8
10-7
m1/2 [GeV]
SM MSSM
BR
(BS
)
0.5 fb–1 exclude BR down to SM signal
2 fb–1 3 evidence of SM signal
10 fb–1 >5 observation of SM signal
We need better theory to find NP phase and amplitudes in CKM fits
Itoh, Stewart, Flynn
plum bamboo
pine
3 different scenarios for lattice and theory improvement
Eigen: Use SU(3) symmetry and conservatively scan theory uncertainties
Itoh:
What we don’t know that we don’t know
Foggy forest in Nagano
In the strong interaction and in the weak interaction
One Example of the Surprises at the current B Factories
• Many narrow unanticipated new particles
• Although the strong interaction is “well-understood”, these particles were not predicted in the Physics Reports, Yellow Books, review committees and workshops that preceded the B factory…..
[Could there be surprises in the weak interactions of quarks ?]
[Lesson for the LHC ?]
From the major Japanese newspapers on Nov 10
M = 4433 ±4 ±1 MeV Γ tot = 45 ± 17 ± 30 MeV Nsig =124 ± 31 evts
ee ≃ 0.27 keV ee ≃ 0.13 keV
≃ 110 MeV ≃ 20.5 MeV
expect only limits ...
11020.5
~ 1.7 x 105
477 fb1
Expectations for non-B Bar decays of Upsilon(5S)
5(4 ) (1 ) (9.0 1.5) 10S S
5(4 ) (2 ) (8.8 1.9) 10S S
(4 )S (5 )S(OZI Suppressed)
But Kai-Feng Chen and Anatoly Sokolov look anyways Seen by BaBar, Belle
“(5S)” (nS) +, (1S) K+K
(1S) +
(2S) +
(3S)(3S) ++
(1S)(1S) KK++KK
3.2
square box gives ~ 3.9
14
20
4.9
Surprise: There are huge signals
: OZI decays 2 orders of magnitude too large !
N.B. Resonance cross section 0.302 ± 0.015 nb at ECM = 10.87 GeV PRD 98, 052001 (2007) [Belle]
(2S) (1S) ~ 6 keV (3S) 0.9 keV (4S) 1.8 keV (5S) 580 keV
• Is this really the (5S), or is there something else e.g. a Yb state that overlaps with it? (like the Y(4260)).
Need CM Scan to tell
Assume “(5S)” = (5S)PDG value taken for (nS) properties
BELLE-CONF-0774, hep-ex/0710.2577 Last week of December 2007 run for 10 days
(5 )S
Wei-shou Hou:
Where is the ground state bottomonium ηb ?Talks by Roberto Mussa, Hajime Muramatsu
Which Upsilon(nS) is best ? Inclusive or exclusive ? What are the
hadronic modes of the ηb ?
Tests theory and is the highest priority of the quarkonium working group (QWG)
Hunting dark matter or light Higgs in Υ(nS) decaysHigh precision check of lepton universality in dilepton decays Light Higgs signature
Talks by Mussa, Muramatsu
Kuzmin: Do not neglect ISR. You may discover new particles e.g. Y(4260), and even constrain special kinds of new physics
2007 was the year of D0 mixing
But not reported by the New York Times, Washington Post
D0 K+K- / +-
K+K-/+-
and K-+ratioDifference of lifetimesvisually observable
Evidence for D0 mixing(regardless of possible CPV)
3.2 from zero (4.1 stat. only)
2/ndf=1.084 (ndf=289)
+
negligible CPV, yCP=y
PRL 98, 211803 (2007), 540fb-1
(1.31 0.32 0.25)%CPy
Belle
y=/(2
Also confirmed by BaBar
Talk by Marko Staric
BaBar D-mixing Signal in D0K+-
•Fit results:RD: (3.03±0.16±0.10)x10-3 x’2: (-0.22±0.30±0.21)x10-3
y’: (9.7±4.4±3.1)x10-3
data - no mix PDF mix - no mix PDF
WS mixing fit projection in signal region1.843 GeV/c2 < m < 1.883 GeV/c2
0.1445 GeV/c2 < m < 0.1465 GeV/c2
x=m/ y=/(2The quantities x’, y’ are rotated versions of x, y The rotation angle is an unknown strong phase
CDF confirmation as well
Current status of D0 mixing semileptonic, K+, Ks, yCP, K0, K, (3770)
Why is D0 mixing important for Super B Factories ?
Large mixing isestablished.(may be compatible with high endof SM predictions)
Large mixing isestablished.(may be compatible with high endof SM predictions)
Belle,BaBar,CLEOcombined
Belle,BaBar,CLEOcombined
x=m/
y=/(2
Beijing charm workshop, Nov 2007
x
(Anticipated by Yuval G et al.)
)10(~2
~ 352
OA
The existence of D mixing (if x is non-zero)allows us to look for another unconstrained NP phase but this time from up-type quarks. (compare to CPV in Bs mixing: Casey, Renga,
Muheim, Grossman)
0;0)2
1(Im iM
f
f eA
A
A
p
q
CPV in D system negligible in SM
CPV in interf. mix./decay:
Another new physics CPV phase !
Current sensitivity ~±200, 50 ab-1 go below 20
Talk by Marko Staric
---------------------------------------------------------------------------------------------------------------
"A special search at Dubna was carried out by E. Okonov and his group. They did not find a single KL + - event among600 decays into charged particles [12] (Anikira et al., JETP 1962). At that stage the search was terminated by the administration of the Lab. The group was unlucky." -Lev Okun, "The Vacuum as Seen from Moscow"------------------------------------------------------------------------------------------------------
More lessons from history (II)
BF= 2 x 10-3
Another failure of imagination ?
What the data might look like at 50 ab-1
Gershon: Treasure chest of Golden NP observables.
New Physics at 50 ab-1
NB Constraints from trees and boxes do not agree
NP phase in bd
Nishida
Extrapolation: B K0 at 50/abwith present WA values
J/K0
K0
Compelling measurement in a clean mode
MC
This would establish the existence of a NP phase
Nishida, Gershon
History III: finding NP in AFB
(using interference)
Conclusion: There is a Z at higher energy even though colliders did not have enough E to produce it
2 from SM ?229M386M
Ali, Mannel, Morozumi, PLB273, 505 (1991)
Find the Zero Crossing of AFB(BK* l+ l-)(q2)
Yoshikawa: new observables CP and non-CPVMorozum:i (new AFB , CP in K )
MC
Matsuzaki, Morozumi, Gonalez-Springberg, Gershon, Nishida, Goto
Signal for LFV
μγ
At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory. But each time a new frontier of observation is broached we inevitably discover new phenomena which force us to modify substantially our previous conceptions. I believe this process to be unending, that the delights and challenges of unexpected discovery will continue always.
Val Fitch, Nobel Prize Speech 1980
Wise words from one of the discoverers of CP violation
BNM 01 Talk
Atami Conclusion熱海会議の結論
We would like to thank the local Nagoya, NWU, and KEK organizers, especially Imai-san, for an excellent and stimulating meeting.
Maybe we should do this more than once a decade ?