Transcript JINR Particle Physics road map

JINR Particle Physics
road map
The role of the Road Map is to:
 ensure scientific excellence of JINR
 maximise the scientific output within the resources
 support and develop existing facilities and infrastructure
Scientific Council
19.01.2006
A. Olchevski
Worldwide Priorities in particle
physics
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the origin of mass;
the properties of neutrinos and
astro(particle)physics;
the properties of the strong interaction
including properties of nuclear matter;
the origin of the matter-antimatter
asymmetry in the universe;
the unification of particles and forces
including gravity;
Scientific Council
19.01.2006
A. Olchevski
JINR particle physics programme and
worldwide Priorities in particle physics
JINR particle physics:
Priorities in particle phys
Heavy and light ion physics
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Nucleon (spin) structure
Non perturbative QCD
Rare processes (K decays, CP
violation)
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Hadron and lepton colliders
physics
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Neutrino physics, astrophysics
Scientific Council
19.01.2006
A. Olchevski
the origin of mass;
the properties of
neutrinos; astrophysics
the properties of
the strong interaction
including properties of
nuclear matter;
the origin of the
matter-antimatter
asymmetry in the universe;
the unification of particles
and forces including gravity;
Theoretical physics
In order JINR shall play a leading role in particle physics, it is important
that theoretical research is closely related to and supporting the
experimental program.
Computing
Also an effective participation in physics analysis of
experiments requires adequate computing infrastructure and
connectivity.
Scientific Council
19.01.2006
A. Olchevski
State of Nuclear Matter
Thermal history of the Universe
LHC
ALICE
CMS
PHENIX
RHIC
SPS
STAR
NA49
NA45
MARUSYA
NUCLOTRON FAZA
2.7 0K
BECQUEREL
Life Sciences
Scientific Council
19.01.2006
A. Olchevski
ALICE Physics Goals
ALICE PPR, 2004, J. Phys. G: Nucl. Part. Phys. 30, 1517-1763
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Heavy ion observables in ALICE
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Particle multiplicities
Particle spectra
Particle correlations
Fluctuations
Jet physics
Direct photons
Dileptons
Heavy-quark and quarkonium production
➮ p-p and p-A physics in ALICE
➮ Physics of ultra-peripheral heavy ion collisions
➮ Contribution of ALICE to cosmic-ray physics
Scientific Council
19.01.2006
A. Olchevski
ALICE Physics Goals (cont.)
Momentum correlations (HBT)
Dileptons
The increase of  width by factor
3 (D.Lissauer and E.Shuryak, 1991) and
decrease of  and  masses by up to 150 MeV
/c2 (M.Asakava and S.M.Ko, 1994) because of
partial chiral symmetry restoration during the
first-order phase transition to the QGP or to the
mixed phase (preQGP) according to the
conception of A.N.Sisakyan, A.S.Sorin and
G.M.Zinoviev.
G.I.Kopylov & M.I.Podgorecky
suggested to study the space - time
parameters of sources producing
identical particles
New adequate transport model and hydro
calculations is under creation now in Dubna
ALICE group together with our collegues:
R.Lednicky, N.Amelin (Dubna), Y.Sinyukov
(Kiev).
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JINR team has leading positions in some physics tasks. Convener of
one of the Alice physics groups is JINR physicist Y. Belikov.
Scientific Council
19.01.2006
A. Olchevski
State of Nuclear Matter
Running experiments
 NUCLOTRON (JINR) experiments MARUSYA, DELTA
the temperature and baryon density of the matter formed during the collision of nuclei with atomic
numbers ~ 200 at the collision energies ~ 5 GeV/nucleon can be sufficient for the mixed phase
formation.
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THERMALIZATION (IHEP, JINR)
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STAR, PHENIX (BNL)
a new state of dense and hot nuclear matter discovered (reported on April 18, 2005)
In build experiment:
 ALICE (CERN)
Future project:
 NUCLOTRON
 CBM (FAIR)
Scientific Council
19.01.2006
A. Olchevski
Nucleon (spin) structure
This subject has a long and succesfull tradition in JINR starting with
NA4 experiment at CERN, HERMES at DESY and today COMPASS
Generalized Parton
Distributions (GPD)
Scientific Council
19.01.2006
A. Olchevski
Nucleon (spin) structure
Scientific Council
19.01.2006
A. Olchevski
Nucleon spin structure
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HERMES (DESY)
Running experiment:
 COMPASS (CERN)
First Measurement of the Transverse Spin Asymmetries of the Deuteron
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STAR
Future experiments:
 NUCLOTRON
 COMPASS after 2010
 Experiments at U-70
 PAX (FAIR)
Scientific Council
19.01.2006
A. Olchevski
Nonperturbative QCD
Experiment DIRAC (CERN)
proposed by JINR and
lead by L. Nemenov
Scientific Council
19.01.2006
A. Olchevski
Nonperturbative QCD
Running experiments:
 DIRAC (CERN)
 NA48/2 (also measured pion scattering length)
 Hadron programm of COMPASS
 NUCLOTRON experiments NIS, etc. (JINR)
Future:
 NUCLOTRON
 PANDA (FAIR)
Scientific Council
19.01.2006
A. Olchevski
Rare processes (K decays, CP violation)
JINR participation in CERN
experiment
NA48
world best measurement
of direct CP violation in K0
decays
Scientific Council
19.01.2006
A. Olchevski
Rare processes (K decays, CP violation)
JINR participation in
CERN experiment
NA48/2
Spokesperson:
V. Kekelidze
world best limit on
direct CP violation
in charged K decays
Scientific Council
19.01.2006
A. Olchevski
Rare processes (K decays, CP violation)
JINR participation in
KEK experiment
E391a
world best limit on
K°->π°νν
Scientific Council
19.01.2006
A. Olchevski
Rare processes (K decays, CP
violation)
Current projects:
 NA48/2
 KEK experiment E391a
Future project:
 NA 48/3
 OKA at U-70
 New experiments at CERN SPS
CP violation in B decays:
 CDF and D0 experiments
 Atlas and CMS
Scientific Council
19.01.2006
A. Olchevski
Standard Model and beyond
•Top mass measurement,
•Higgs boson searches,
•SUSY searches,
•extra dimensions, ...
Scientific Council
19.01.2006
A. Olchevski
Standard Model and beyond
JINR physicists contributed significantly to these results:
•Higgs searches in LEP experiments;
•Electroweak fits;
•Measurements of W mass in LEP experiments;
•Measurement of the top mass in CDF and D0
Scientific Council
19.01.2006
A. Olchevski
Standard Model and beyond
The State of the Higgs: Summer 2005
(J. Ellis talk at ICFA meeting)
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Direct search limit: mH > 114 GeV
Electroweak fit sensitive to mt
Currently mt = 172.7 ± 2.9 GeV (previously mt = 178 → 174.3)
Best-fit value: mH = 91+45–32 GeV
95% confidence-level upper limit:
mH < 186 GeV, or 219 GeV including direct limit
Scientific Council
19.01.2006
A. Olchevski
CDF and D0 experiments
JINR CDF group had a leading role
in the most precise top quark mass
measurement
Dubna
Scientific Council
19.01.2006
A. Olchevski
ATLAS Physics
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The various Higgs boson searches, which resent some of the most challenging
signatures, were used as benchmark processes for the setting of parameters that
describe the detector performance. High-resolution measurements of electrons,
photons and muons, excellent secondary vertex detection for t-leptons and b-quarks,
high-resolution calorimetry for jets and missing transverse energy (ET miss) are
essential to explore the full range of possible Higgs boson masses.
Searches for SUSY set the benchmarks on the hermeticity and ET miss capability of
the detector, as well as on b-tagging at high luminosity.
Searches for new heavy gauge bosons provided benchmark requirements for
high-resolution lepton measurements and charge identification in the pT range as
large as a few TeV.
Signatures characteristic for quark compositeness set the requirements for the
measurement of very high-pT jets.
The precision measurements of the W and top-quark masses, gauge boson
couplings, CP violation and the determination of the Cabibbo-KobayashiMaskawa unitarity triangle yielded benchmarks that address the need to
precisely control the energy scale for jets and leptons, determine precisely secondary
vertices, reconstruct fully final states with relatively low-pT particles and trigger on
low-pT leptons.
Scientific Council
19.01.2006
A. Olchevski
CMS experiment
JINR Physics activities in CMS:
B-physics (BsJ/ +- K+K-)
– JINR + Belarus
Higgs (ZZ  ll )
– Ukraine
QCD (jet physics, diffraction)
– JINR + Armenia + Belarus
Heavy Ions
– JINR + Georgia
Special interest – dimuons with TeV
invariant
mass
Scientific
Council
19.01.2006
A. Olchevski
JINR participation in
International Linear Collider
Physics and Detector R&D
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Beam Energy Measurement
Forward Calorimeter
Forward Tracking
Hadron Calorimeter
Physics
Scientific Council
19.01.2006
A. Olchevski
Standard Model and beyond
Top mass measurement, Higgs boson searches, SUSY
searches, extra dimensions, ...
Very clear road in this subject:
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Current projects:
CDF, D0
In build projects:
LHC ATLAS, CMS
Future:
 International Linear
Collider
Scientific Council
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19.01.2006
A. Olchevski
Neutrino physics and
astrophysics
Neutrino physics in JINR has been
established by Bruno Pontecorvo
– the inventor of neutrino detection and
their oscillations.
National Research Council of Canada, Division of
Atomic Energy. Chalk River, 1946, Report PD-205.
An Example
There are several elements which can be used for neutrino radiation in the suggested
investigation. Chlorine and Bromine, for example, fulfil reasonably well the desired conditions. The
reactions of interest would be:
 + 37Cl   + 37 Ar
 + 79,81Br   + 79,81Kr
37Ar  37Cl
79,81Kr  79,81Br
(34 days; K capture)
(34 h; emission of positrons of 0.4 MeV)
The experiment with Chlorine, for example, would consist in irradiating with neutrinos a
large volume of Chlorine or Carbon Tetra-Chloride, for a time of the order of one month,
and extracting the radioactive 37Ar from such volume by boiling. The radioactive argon
Scientific
would
beCouncil
introduced inside a small counter; the counting efficiency is close to 100%,
19.01.2006
because of the high Auger electron yield.A. Olchevski
Neutrino physics and astrophysics
Major features of the solar electron neutrino deficit is now understood (SNO)
Antineutrino oscillates the same way as neutrino (Kamland)
SNO, SuperKamiokande, KamLAND and Borexino will provide results in
the next few years that may point toward a next generation of non-accelerator
experiments.
Neutrino oscillations – the first confirmed laboratory evidence for
Physics beyond the Standard Model
Scientific Council
19.01.2006
A. Olchevski
Neutrino physics and astrophysics
Contemporary topics in neutrino physics:
- Appearance oscillation experiments
- Measurement of neutrino
mass and its
Majorana/Dirac origin
Scientific Council
19.01.2006
- Measurement of θ13 in a
new reactor experiment
A. Olchevski
Neutrino physics and astrophysics
Completed experiments:
 NOMAD, HARP
Neutrino cross section, π/K production cross sections
Current experiment:
 Borexino – solar neutrino physics
In Build:
 OPERA - tau neutrino appearance
 TUS/NUCLON – space astroparticle physics experiment
Future:
 New generation neutrino and astrophysics experiment
Scientific Council
19.01.2006
A. Olchevski
CURRENT RESOURCES REQUESTS IN JINR PARTICLE PHYSICS
R&D (DVIN) 1,3%
In JINR
and
member
states
30%
R&D (CLIC) 1,2%
R&D (ILC) 1,3%
GSI / FAIR 3,1%
Gran Sasso 2,1%
D0 2,6%
Nuclotron 22,5%
CDF 2,6%
Outside
JINR
70%
CMS 13,4%
STAR 5,0%
Neutrino physics
(at accelerators)
2%
R&D
7%
Phenix 1,2%
Alice 2,6%
NA49 1,0%
Atlas 13,8%
Ion physics
32%
OKA 3,1%
Thermalization 1,0%
KEK 1,3%
DIRAC 2,9%
HERMES 1,2%
NA48 8,1%
COMPASS 8,1%
QCD, CP viol., rare
decays
26%
H1 0,5%
Scientific Council
19.01.2006
Hadron colliders
33%
A. Olchevski
Scientific Council
19.01.2006
A. Olchevski
Conclusions
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JINR program in particle physics covers the current particle
physics priorities.
The program is carried both in JINR and member states as
well as in the largest accelerator centers. In projects
outside Dubna JINR physicists play an important role, in
some cases they initiated experiments and/or lead
experiments or their parts.
Long term future of particle physics program is focused to
polarized beam at NUCLOTRON, High Luminosity LHC,
FAIR project and ILC.
Scientific Council
19.01.2006
A. Olchevski