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Heavy Exotic Particle Production from HIC at LHC

Heavy Exotic Particle Production from HIC at LHC. Su Houng Lee Yonsei Univ., Korea. with Shigehiro Yasui, Wei Liu , Che-Ming Ko. Scalar tetraquark (Jaffe 76). Recently observed heavy tetraquark?. Search for Q + pentaquark. Search for H dibaryon. Not explicitly exotic.

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Heavy Exotic Particle Production from HIC at LHC

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  1. Heavy Exotic Particle Production from HIC at LHC Su Houng Lee Yonsei Univ., Korea with Shigehiro Yasui, Wei Liu , Che-Ming Ko

  2. Scalar tetraquark (Jaffe 76) Recently observed heavy tetraquark? Search for Q+ pentaquark Search for H dibaryon Not explicitlyexotic Never found nor confirmed ?

  3. All Constituent quark model + … suggest • Exotic (meson or bayon with anomalous quark number) will exist in QCD due to quark quark attraction 2. Exotics with heavy quarks will surely exist

  4. Attractions in quark-antiquark vs. diquark One gluon exchange Lattice calculation Phenomenological fit of color spin interaction to hadron spectrum

  5. Meson Mass difference d u Baryon Mass difference u u d Works very well with 3x CB = CM =635 mu2

  6. Why there should be a heavy pentaquark For a charmed Pentaquark c = -232 MeV For a Nucleon and a D-meson c = -240 MeV xmc For a Pentaquark u u s s d For a Nucleon and a Kaon u u s s d

  7. For doubly charmed tetraquark c c = -143 MeV xmc2 For the D and D* meson c c = -64 MeV xmc xmc Tetraquark : 1+ For a Tetraquark s u s d For the K and K* meson u d s s

  8. Tetraquarks Pentaquarks

  9. Search for Qcs =(ud)(us) c pentaquark LHC (ALICE ) measure D0 well L Qcs D0 K Statistical model p Previous search Fermilab (E791) K* Qcs p P Fermilab bound K

  10. Search for Tcc =(ud)(cc) tetraquark No previous experiment was possible But will be possible at LHC (ALICE ): 100 cc pairs produced p Tcc D* K

  11. Number produced at LHC from coalescence • Tcc : RHIC=1x10-4 LHC=0.07 2. Qcs : RHIC=1.3x10-4 LHC=5x10-3 • LHC can be a very useful heavy exotic factory  If found, it will be the first exotic ever,  will tell us about QCD, q-q interaction and dense matter  great step forward in QCD

  12. Why there should be a heavy pentaquark For a charmed Pentaquark u u c d d For a Nucleon and a D-meson u u d c d For a Pentaquark u u s d d For a Nucleon and a Kaon u u d s d

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