1 / 21

マッハ錐についてのコメント 「ジェットの v 2 」　と　「ジェット分布の変化」　は区別できるのか ? 筑波大、物理、江角晋一

マッハ錐についてのコメント 「ジェットの v 2 」　と　「ジェット分布の変化」　は区別できるのか ? 筑波大、物理、江角晋一. jet. jet. p. p. p. p. Au. Au. Leading hadrons. Medium. jet modification and cone like structure. STAR preliminary. 0-5% Pb +Au 17GeV p T trig =2.5-4 GeV/c p T assoc =1-2.5 GeV/c. PHENIX nucl-ex/0611019.

giacomo-rollins
Download Presentation

マッハ錐についてのコメント 「ジェットの v 2 」　と　「ジェット分布の変化」　は区別できるのか ? 筑波大、物理、江角晋一

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. マッハ錐についてのコメント 「ジェットのv2」　と　「ジェット分布の変化」　は区別できるのか? 筑波大、物理、江角晋一

  2. jet jet p p p p Au Au Leading hadrons Medium

  3. jet modification and cone like structure STAR preliminary 0-5% Pb +Au 17GeV pTtrig=2.5-4 GeV/c pTassoc=1-2.5 GeV/c PHENIX nucl-ex/0611019 CERES preliminary 0-12% 200 GeV Au+Au PHENIX Preliminary 10-20% Au+Au 200GeV pTtrig=2.5-4 GeV/c pTassoc=1-2.5 GeV/c STAR preliminary 0-12% Au+Au 200GeV pTtrig=3-4 GeV/c pTassoc=1-2 GeV/c CERES preliminary0-5% Pb +Au 17GeV pTtrig=2.5-4 GeV/c pTassoc=1-2.5 GeV/c The bulk and jet interaction is there, but in Cu+Cu/Au+Au and SPS-RHIC?!?

  4. PRL 97 052301 nucl-ex/0611019

  5. PHENIX, nucl-ex/0510019. |ftrig-fRP| jet modification and its correlation with v2 STAR, PRL93 (2004) 252301. jet shape w.r.t. reaction plane geometrical effect of the almond shape This effect itself is a one of v2 sources, which will be an important effect at LHC. This should also lead different v2 between bulk and jet.

  6. 筑波大4年　齊藤飛鳥　卒業研究

  7. C1 (dNsingle/d|f|) C2 (dNpair/d|ftrig.-fasso.|) 1.6 1.0 0.4 1.6 1.0 0.4 1.3 1.0 0.7 1.3 1.0 0.7 1.3 1.0 0.7 all pairs in-plane trigger out-of-plane trigger v2asso. v2trig. pTasso. 0.7-1.7GeV/c pTtrig. 1.7-4GeV/c |fasso.- FR.P.| |ftrig.- FR.P.| |fasso.- ftrig..| 1/Ntrig. dNasso./d|ftrig.-fasso.| |fasso.- ftrig..|

  8. pTasso. : 0.7-1.7GeV/c pTtrig. : 1.7-4GeV/c AMPT 200GeV Au+Au → charged hadrons (|y|<2.0) string-melting 10mb string-melting 3mb default AMPT 3mb b = 12 fm ~ b = 8~12 fm b = 4~8 fm b = 0~4 fm 1/Ntrig. dNasso./d|ftrig.-fasso.| |ftrig.-fasso.| (rad) 筑波大4年　塩原尚希　卒業研究

  9. pTasso. : 0.7-1.7GeV/c pTtrig. : 1.7-4GeV/c AMPT 200GeV Au+Au → charged hadrons (|y|<2.0) trigger at in-plane average trigger at out-of-plane b = 12 fm ~ b = 8~12 fm b = 4~8 fm b = 0~4 fm 1/Ntrig. dNasso./d|ftrig.-fasso.| |ftrig.-fasso.| (rad)

  10. v2thermal = v2jet 答え：区別できない。 dNsingle/d|f| inclusive average inclusive v2 (v2thermal + v2jet) v2asso.*v2trig. dNpair/d|Df| jet all pairs Jet-matter interaction should modify the jet shape depending on the orientation with respect to the ellipse axis. The suppression caused by the interaction gives high pT v2, while the modification would change the low-mid pT v2.

  11. Back-ups

  12. nucl-ex/0611019 PRL 97 052301

  13. AMPT 200GeV Au+Au (b=0-4fm) → charged hadrons (|y|<2.0) pTasso. : 0.5-1.5GeV/c pTtrig. : 1.5-4GeV/c pTasso. : 0.7-1.7GeV/c pTtrig. : 1.7-4GeV/c 1/Ntrig. dNasso./d|ftrig.-fasso.| pTasso. : 1-2GeV/c pTtrig. : 2-4GeV/c pTasso. : 1-2.5GeV/c pTtrig. : 2.5-4GeV/c |ftrig.-fasso.| (rad)

  14. AMPT 200GeV Au+Au (b=0-4fm) → charged hadrons (|y|<2.0) pTasso. : 0.5-1.5GeV/c pTtrig. : 1.5-4GeV/c pTasso. : 0.7-1.7GeV/c pTtrig. : 1.7-4GeV/c C2 (dNpair/d|ftrig.-fasso.|) - flow(v2trig.*v2asso.) pTasso. : 1-2GeV/c pTtrig. : 2-4GeV/c pTasso. : 1-2.5GeV/c pTtrig. : 2.5-4GeV/c |ftrig.-fasso.| (rad)

  15. pTasso. : 0.7-1.7GeV/c pTtrig. : 1.7-4GeV/c AMPT 200GeV Au+Au (b=0-4fm) → charged hadrons (|y|<2.0) default AMPT 3mb default AMPT 10mb string-melting 3mb string-melting 10mb 1/Ntrig. dNasso./d|ftrig.-fasso.| |ftrig.-fasso.| (rad)

  16. pTasso. : 0.7-1.7GeV/c pTtrig. : 1.7-4GeV/c AMPT 200GeV Au+Au → charged hadrons (|y|<2.0) string-melting 3mb string-melting 10mb central (b=0-4fm) peripheral (b=8-12fm) 1/Ntrig. dNasso./d|ftrig.-fasso.| |ftrig.-fasso.| (rad)

More Related