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New Insights into pN Interaction in Resonance Region Investigation

This study delves into experimental facets of the pN interaction in the resonance region, highlighting the ambiguities in partial-wave analysis results. The research, supported by the Russian Foundation for Basic Research, aims to resolve remaining uncertainties through spin rotation parameter measurements. The comparison of N* and D resonance statuses is also a focal point.

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New Insights into pN Interaction in Resonance Region Investigation

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  1. New experimental facets of the pN-interaction investigations in the resonance region. • V.V.Sumachev(1) V.V.Abaev(1), I.V.Lopatin(1), V.P.Kanavets(2), • S.P.Kruglov(1). • Abstract. • Recent experiments of the PNPI-ITEP collaborations resolved a part of the twofold ambiguities of the PWA. The PNPI-ITEP results were used in the new partial-wave analysis (PWA) FA02 of the George Washington University groups. In FA02 the number of the N* and D resonances is essentially lower, than such in RPP tables. This result intensifies the problem which is known as a problem of the “missing” resonances. • The program of the essentially new measurements of the spin rotation parameters A and R is under discussion. Such additional experiments are necessary to resolve possible remaining twofold ambiguities of the PWA. • This work is supported by Russian Foundation for Basic Research, • grant № 04-02-16335. • Petersburg Nuclear Physics Institute, Gatchina, Russia. • 2. Institute for Theoretical and Experimental Physics, Moscow, Russia. S P I N - 2 0 0 4 1

  2. S P I N - 2 0 0 4 2

  3. S P I N - 2 0 0 4 3

  4. S P I N - 2 0 0 4 4

  5. S P I N - 2 0 0 4 5

  6. S P I N - 2 0 0 4 6

  7. S P I N - 2 0 0 4 7

  8. S P I N - 2 0 0 4 R.H.Dalitz,L.J.Reinders, (1977) 8

  9. S P I N - 2 0 0 4 9

  10. S P I N - 2 0 0 4 10

  11. S P I N - 2 0 0 4 11

  12. S P I N - 2 0 0 4 12

  13. S P I N - 2 0 0 4 13

  14. S P I N - 2 0 0 4 14

  15. S P I N - 2 0 0 4 15

  16. S P I N - 2 0 0 4 16

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  18. S P I N - 2 0 0 4 18

  19. S P I N - 2 0 0 4 19

  20. The comparison of the N* and D - resonance status. N* Status 2004 Status 1980 D Status 2004 Status 1980 N(939)P11 **** **** D(1232)P33 **** **** N(1440)P11 **** **** D(1550)P31 ---- **(Dp,Nr) N(1520)D13 **** **** D(1600)P33 *** *** N(1535)S11 **** **** D(1620)S31 **** **** N(1540)P13 ---- *(Dp,Nr) D(1700)D33 **** **** N(1650)S11 **** **** D(1750)P31 *(Np) ---- N(1675)D15 **** **** D(1900)S31 ** ** N(1680)F15 **** **** D(1905)F35 **** **** N(1700)D13 *** **** D(1910)P31 **** **** N(1710)P11 *** **** D(1920)P33 *** ** N(1720)P13 **** **** D(1930)D35 *** *** N(1900)P13 **(Nr,Np) ---- D(1940)D33 *(Np) ---- N(1990)F17 ** *** D(1950)F37 **** **** N(2000)F15 ** ** D(2000)F35 **(Nr) ---- S P I N - 2 0 0 4 2004 >> Phys.Lett.B592, Issues1-4 (2004) 866. 1980 >> Rev.Mod.Phys. V52, №2, Part 2 (1980) 190. 20

  21. The comparison of the N* and D - resonance status. (Continuation…) N* Status 2004 Status 1980 D Status 2004 Status 1980 N(2000)F15 ** ** D(2000)F35 **(Nr) ---- N(2080)D13 ** ** D(2150)S31 *(Np) ---- N(2090)S11 *(Np) * D(2160) ---- **(Np,KS) N(2100)P11 *(Np,Nh) ---- D(2200)G37 *(Np) ---- N(2190)G17 **** **** D(2300)H39 ** * N(2200)D15 ** ** D(2350)D35 *(Np) ---- N(2220)H19 **** **** D(2390)F37 *(Np) ---- N(2250)G19 **** **** D(2400)G39 ** *(Np) N(2600)I1,11 *** *** D(2420)H3,11 **** *** N(2700)K1,13 ** * D(2750)I3,13 ** **(Np) N(2800)G19 ---- *(Np) D(2850) *** N(3030) ---- ***(Np) D(2950)K3,15 ** **(Np) N(3245) ---- * D(3230) *** N(3690) ---- * N(3775) ---- * S = 22 S = 26 S = 22 S = 19 S P I N - 2 0 0 4 2004 >> Phys.Lett.B592, Issues1-4 (2004) 866. 1980 >> Rev.Mod.Phys. V52, №2, Part 2 (1980) 190. 21

  22. S P I N - 2 0 0 4 22

  23. S P I N - 2 0 0 4 23

  24. S P I N - 2 0 0 4 24

  25. Resonance parameters for 3 Green function poles S P I N - 2 0 0 4 A. Švarc, S. Ceci and B. Zauner (Rudjer Bošković InstituteZagreb) 25

  26. Resonance parameters for 4 Green function poles. S P I N - 2 0 0 4 A. Švarc, S. Ceci and B. Zauner (Rudjer Bošković InstituteZagreb) 26

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