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V. Mochalov (IHEP, Protvino) on behalf of the PANDA collaboration PANDA PHYSICS WITH THE USE OF ANTIPROTON BEAM.

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Presentation on theme: "V. Mochalov (IHEP, Protvino) on behalf of the PANDA collaboration PANDA PHYSICS WITH THE USE OF ANTIPROTON BEAM."— Presentation transcript:

1 V. Mochalov (IHEP, Protvino) on behalf of the PANDA collaboration PANDA PHYSICS WITH THE USE OF ANTIPROTON BEAM

2 CONTENT June 2013V. MOCHALOV, HADRON STRUCTURE 20132  Introduction: FAIR, HESR & PANDA  (FAIR – Facility for Antiproton and Ion Research)  (HESR – High Energy Storage Ring)  (PANDA– antiProton ANnihilation at DArmstadt)  PANDA Detector  Hadron Physics  Charmonium  Open charm  Light exotics  Baryon studies  Conclusion

3 June 2013V. MOCHALOV, HADRON STRUCTURE 20133 100m pbar production : proton Linac 50 MeV accelerate p in SIS18/SIS100 produce pbar on target collect pbar in CR, cool in RESR (not in Start Version) inject pbar into HESR

4 HESR June 2013V. MOCHALOV, HADRON STRUCTURE 20134

5 June 2013V. MOCHALOV, HADRON STRUCTURE 20135

6 PANDA DETECTOR TRACKING June 2013V. MOCHALOV, HADRON STRUCTURE 20136

7 PANDA DETECTOR IDENTIFICATION June 2013V. MOCHALOV, HADRON STRUCTURE 20137

8 PANDA DETECTOR CALORIMETRY June 2013V. MOCHALOV, HADRON STRUCTURE 20138

9 PANDA DETECTOR CHARCTERISTICS June 2013V. MOCHALOV, HADRON STRUCTURE 20139 Capability to detect events with high rate (up to 2 · 10 7 s -1 interactions) Nearly 4π solid angle for large acceptance and PWA p ±, K ±, p ±, e ±, μ ±, γ identification Displaced vertex detection – vertex information for D, K S, ,  (c  = 317  m for D ± ) Photon detection from 10 MeV to 10 GeV Efficient event selection & good momentum resolution Detector will be described in the Marco Destefanis Talk

10 V. MOCHALOV, HADRON STRUCTURE 2013 Hadron spectroscopy light mesons charmonium and open charm search for exotics baryons (double strange, charmed) baryon anti-baryon production Mesons in nuclei Hypernuclei EMP processes Time-like electromagnetic form factors of the proton, Transverse quark distributions PANDA PHYSICS OVERVIEW 10June 2013V. MOCHALOV, HADRON STRUCTURE 2013 will be described in the Marco Destefanis Talk

11 Update on the Physics Perspectives of PANDA Spectroscopy of X, Y and Z states Nucleon Structure from electromagnetic processes in PANDA Physics of doubly strange systems Production of S=-2 systems at FAIR PANDA PHYSICS DOCUMENTS 20.09.2012V. MOCHALOV, SPIN-2012, IHEP SPIN PROGRAM11

12 PANDA ADVANTAGES: POSSIBILITY TO CREATE ALL STATES 20.09.2012V. MOCHALOV, SPIN-2012, IHEP SPIN PROGRAM12

13 V. MOCHALOV, HADRON STRUCTURE 2013 In the formation mode, masses and widths will be measured very accurately. It depends only on the beam parameters, not on the detector resolution, which determines only be the sensitivity to a given final state Typical resolution: e+e- Crystal Ball: ~ 10 MeV pp Fermilab: 240 keV pp PANDA: ~30-100 keV WIDTH MEASUREMENT ACCURACY 1320.09.2012V. MOCHALOV, SPIN-2012, IHEP SPIN PROGRAM

14 LATTICE QCD CALCULATIONS 2012 June 2013V. MOCHALOV, HADRON STRUCTURE 201314 lightest supermultiplet first excited supermultiplet other states (cc) L. Liu et al, arXiv: 1204.5425v1 [hep-ph]

15 CHARMONIUM SPECTROSCOPY June 2013V. MOCHALOV, HADRON STRUCTURE 201315 All charmonium states below open charm threshold observed All charmonium 1 -- states observed Above open charm threshold: many expected states not observed many unexpected observed

16 PDG 2012 STATES June 2013V. MOCHALOV, HADRON STRUCTURE 201316

17 Conventional states: masses and width of η c June 2013V. MOCHALOV, HADRON STRUCTURE 201317 Data from Xiaoyan SHEN Talk at PANDA-meeting

18 Conventional states: h c width June 2013V. MOCHALOV, HADRON STRUCTURE 201318

19 PDG 2012 CHARMONIUM STATES June 2013V. MOCHALOV, HADRON STRUCTURE 201319

20 X(3872) June 2013V. MOCHALOV, HADRON STRUCTURE 201320

21 X(3872) DISCUSSION June 2013V. MOCHALOV, HADRON STRUCTURE 201321 Breaks isospin in the decays J/  (->  +  − ) – isospin violation, J/  (->  +  −  0 ) → it is not charmonium? Within  m < 1 MeV of the DD* threshold S-wave molecular state? Large cross-section – it is charmonium χ c1 (2P)?- (S.S. Gershtein, A.K. Likhoded, A.V. Luchinsky Phys.Rev. D74 (2006) 016002) - For molecule should be lower by factor 10^2) Probably two narrow states (CDF) Charge partner? – not in the mass window neither in width

22 June 2013V. MOCHALOV, HADRON STRUCTURE 201322

23 X(3872) SCAN June 2013V. MOCHALOV, HADRON STRUCTURE 201323

24 X(3872) PUZZLE June 2013V. MOCHALOV, HADRON STRUCTURE 201324 The mass value of M = 3871.68 ± 0.17 MeV is.05±0.27 MeV lower than the sum of masses of the D 0 and D *0 PANDA will measure width at the level of 0.1 MeV with 20 keV accuracy.

25 V. MOCHALOV, HADRON STRUCTURE 2013 Can not be charmonium (charged) it must contain a cc-bar pair due to its decay into ψ’π +. decay into J/ψπ + is not observed Other states (3900) 4025(?) Z(4430) STUDY (AND OTHERS) 25June 2013V. MOCHALOV, HADRON STRUCTURE 2013

26 Z(4430) AT PANDA 26June 2013 The ψ(2S)π invariant mass (blue). Combinatorics background in red

27 SEARCH FOR Z(4430) PARTNERS June 201327

28 PRODUCTION OF EXOTIC CHARMONIUM HYBRID June 2013V. MOCHALOV, HADRON STRUCTURE 201328

29 OPEN CHARM June 2013V. MOCHALOV, HADRON STRUCTURE 201329

30 June 2013V. MOCHALOV, HADRON STRUCTURE 201330

31 20.09.2012V. MOCHALOV, SPIN-2012, IHEP SPIN PROGRAM31

32 D S *(2317) THRESHOLD SCAN 20.09.2012V. MOCHALOV, SPIN-2012, IHEP SPIN PROGRAM32

33 “LIGHT SECTOR” EXOTICS June 2013V. MOCHALOV, HADRON STRUCTURE 201333

34 STUDY OF EXOTICS INCLUDING PWA June 2013V. MOCHALOV, HADRON STRUCTURE 201334 Study of channel: J/ψ → ϕϕ γ → (K+K-) (K+K-) γ Large isospin breaking: η(1440) and f0(980) showed incompability BESIII: PRL 108 (2012) 182001 But !!!

35 V. MOCHALOV, HADRON STRUCTURE 2013 LQCD GLUEBALL SPECTRUM 35June 2013 lightest NARROW (50VeV) oddballs above open charm threshold m(2+-) ~ 4230 MeV m(0+-) ~ 4780 MeV

36 ANTIHYPERON-HYPERON PRODUCTION June 2013V. MOCHALOV, HADRON STRUCTURE 201336

37 PAIR HYPERON PRODUCTION June 2013V. MOCHALOV, HADRON STRUCTURE 201337 Almost full symmetry for the particles an anti-particles gives unique possibility to measure CP effects minimizing systematics

38 BARYON SPECTROSCOPY (ERIK THOMÉ PHD) June 2013V. MOCHALOV, HADRON STRUCTURE 201338

39 HYPERON SPIN PROPERTIES June 2013V. MOCHALOV, HADRON STRUCTURE 201339 Measurement of spin observables – spin density matrix (polarization) an correlation parameters CP violation In decay width Γ(Y → B π) and conjugate decay Γ(¯Y → ¯B π) Much more with polarization: the asymmetry parameter α quantifies the tendency of the decay baryon to be preferably emitted in the hyperon spin direction With hyperon decay to another decay additional CP asymmetries can be achieved

40 V. MOCHALOV, HADRON STRUCTURE 2013 POLARIZATION STUDY IN 40June 2013V. MOCHALOV, HADRON STRUCTURE 2013

41 STUDY OF 41June 2013

42 V. MOCHALOV, HADRON STRUCTURE 2013 CP ASYMMETRY AND STATISTICS 42June 2013

43 OTHER PHYSICS June 201343 Nucleon Structure from electromagnetic processes The extension of form factor measurements to the so called time-like region separating the magnetic and electric components can be performed with an order of magnitude improvement clean identification of dileptons can be used to measure a whole series of other electromagnetic processes like for example Drell-Yan in order to get access to the transverse spin structure functions. Study hyper-nuclei (including - double) and charm-nuclei, when the strange (one or two) or charmed particle "implanted" into the nuclei instead of the usual nucleon Hadrons in nuclear matter These items will be reported tomorrow by Marco Destefanis

44 PANDA AT NUPECC COMMUNITY June 2013V. MOCHALOV, HADRON STRUCTURE 201344 The long-range plan of NUPECC for the European hadron physics community of the year 2010 identifies three major areas in hadron physics as prime goals for the future. Those are: ‘Hadron Spectroscopy’ ‘Hadron Structure’ and ‘Hadronic Interactions’. The PANDA experiment by design can contribute to all of these

45 CONCLUSIONS June 2013V. MOCHALOV, HADRON STRUCTURE 201345 The PANDA experiment will have a great potential for discovery in addition to the LHC at a relatively high-energy antiprotons and, at the same time, due to the energy scan mode will determine masses and widths of the resonances with an accuracy of a linear collider. In addition to high-intensity (up to 2х10 7 interactions), beam of antiprotons would be unprecedented in the degree of monochromatic, the expected level of  p/p down to 10 -5, which will allow the study of strong interactions with high precision. PANDA detector is created using the most modern technology and provides a registration and identification of neutral and charged particles to nearly the full solid angle and energy range up to 15 GeV. A commissioning of PANDA and the first data taking is planned for 2018.

46 June 2013V. MOCHALOV, HADRON STRUCTURE 201346 Whole PANDA collaboration is grateful Organizers to give the possibility to present two Talks at the conference

47 BACKUP SLIDES

48 V. MOCHALOV, HADRON STRUCTURE 2013 ТОЧНОСТИ ИЗМЕРЕНИЯ ФОРМ- ФАКТОРА Мировые данные на форм- фактор |G M | Ожидаемые точности измерений отношения R=|G E |/|G M |

49 June 2013V. MOCHALOV, HADRON STRUCTURE 201349

50 June 2013V. MOCHALOV, HADRON STRUCTURE 201350

51 June 2013V. MOCHALOV, HADRON STRUCTURE 201351

52 NEED TO ADD DETECTOR SUBSYSTEMS IN BACKUP June 2013V. MOCHALOV, HADRON STRUCTURE 201352


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