Flow and Jetcorrelation Shin Ichi Esumi Univ of

Flow and Jet-correlation Shin. Ichi Esumi Univ. of Tsukuba Flow originated from initial geometry Expansion and freeze-out geometry Jet and multi-particle correlation Jet-correlation with respect to geometry Influence on bulk property 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China Shin. Ichi Esumi, Univ. of Tsukuba 1

Higher harmonic order collective expansion of QGP WMAP PHENIX Preliminary, QM 12 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China QM 12: S. Mizuno Shin. Ichi Esumi, Univ. of Tsukuba 2

QM 12: T. Niida Source geometry (size, shape and time duration) at the end of freeze-out via two particle quantum interferometry (HBT measurement) p. T 1 side view size q. T-side : RT-side p. T 2 RT-side, RT-out vs ( ), ( ) RT-sideoscill. < RT-outoscill. for n=2, 3 (central) together with vn(p. T)PID fitting with Blast Wave 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China depth + time duration q. T-out : RT-out PHENIX Preliminary, QM 12 Shin. Ichi Esumi, Univ. of Tsukuba 3

PHENIX, QM 12 extracted by BW fitting with spectra + v 2, 3, 4 of , K, p extracted from RTside by HBT 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China Shin. Ichi Esumi, Univ. of Tsukuba 4

Energy loss (jet quenching) jet p p Au Au re th -dis e lo trib st u en tio er n o gy f Phys. Rev. Lett. 105 (2010) 252303 CMS Phys. Rev. Lett. 91 (2003) 072304 Away-side suppression 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China di-jet energy asymmetry Shin. Ichi Esumi, Univ. of Tsukuba 5

High mult. p+A Ridge structure or vn A+A A small but high-temperature/density system might be created in high multiplicity pp and p. A collisions… --- centrality and p. T dependences --Are they collective/expanding? Min. bias p+p High mult. p+p n io lut vo e e p a h s JHEP 09 (2010) 091, Eur. Phys. J. C 72 (2012) 2012 Phys. Lett. B 718 (2013) 795 -814 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China CMS Shin. Ichi Esumi, Univ. of Tsukuba 6

Angle (Length) dependence of di-hadron correlation Phys. Rev. C 84 (2011) 024904 - high p. T single/jet suppression - high p. T di-hadron/di-jet suppression - High p. T v 2 Phys. Rev. Lett. 93 (2004) 252301 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China Shin. Ichi Esumi, Univ. of Tsukuba 7

Path length (angle w. r. t. n) dependence of energy-loss would be a dominant source of high p. T or reconstructed jet vn. Depending on the shape (amount and direction: blue part), the lost energy re-distribution should then influence the low to mid p. T vn and possibly also affect the bulk expansion in the later stage. Lost energy from the jet quenching, feed-back into the bulk Bulk expansion initial 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China final Interplay between hard and soft physics Shin. Ichi Esumi, Univ. of Tsukuba 8

Initial (p-p like) jet shape is given by the jet axis. (blue shape) (1) How much the jet-shape is modified? (red shape) (2) How much additional things like ridge and mach-cone are generated including the bulk modification? (green shape) 2 dependence 3 dependence h dependence Jet shapes can be asymmetric with respect to the initial jet axis depending on the axis angle relative to 2, 3 … and h. 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China Shin. Ichi Esumi, Univ. of Tsukuba 9

QM 09: J. Konzer Left/right asymmetry of Ridge and Mach-cone Y(|∆η|>0. 7) = Ridge + away-side two-Gaussian R. P. Jet = Y(|∆η|<0. 7) – Acceptance*Y(|∆η|>0. 7) Trig~ 0 STAR Preliminary Au+Au 20 -60% 3<p. TTrig<4 Ge. V/c 1<p. TAssoc<1. 5 Ge. V/c |∆η|>0. 7 Trig~ 90 Ridge contributes v 2 and is asymmetric in Ridge Jet v 2 subtraction 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China ∆ = Asso - Trig Shin. Ichi Esumi, Univ. of Tsukuba 10

QM 09: J. Konzer Left/right asymmetry of Ridge and Mach-cone Y(|∆η|>0. 7) = Ridge + away-side two-Gaussian R. P. Jet = Y(|∆η|<0. 7) – Acceptance*Y(|∆η|>0. 7) Trig~ 0 STAR Preliminary Au+Au 20 -60% 3<p. TTrig<4 Ge. V/c 1<p. TAssoc<1. 5 Ge. V/c |∆η|>0. 7 Trig~ 90 Ridge contributes v 2 and is asymmetric in Ridge Jet v 2 subtraction 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China ∆ = Asso - Trig Shin. Ichi Esumi, Univ. of Tsukuba 11

Hard-soft coupling via geometry and expansion QM 12: T. Todoroki 2 1/NTrig d. NAsso / d - strong 2 dependence and left/right asymmetry (coupled with energy loss and flow) - broader out-of-plane correlation than in-plane correlation (re-distribution of lost energy) PHENIX Preliminary, QM 12 mid-central 40 -50% Au+Au 200 Ge. V, hadron-hadron p. T : (2~4)Trig x (1~2)Asso (Ge. V/c) vn subtraction, no h cut 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China 0 2 4 = Asso – Trig Shin. Ichi Esumi, Univ. of Tsukuba 12

PHENIX, QM 12 mid-central collisions 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China - driving force of v 2 (enhances v 2) - almost no 3 dependence (poor 3 resolution) Shin. Ichi Esumi, Univ. of Tsukuba 13

PHENIX, QM 12 central collisions 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China - stopping force of v 2 (suppresses v 2) - some weak 3 dependence Shin. Ichi Esumi, Univ. of Tsukuba 14

Trigger h dependence of h distribution 1/NTrig d. NAsso / d h (associate yield per trigger with AMPT simulation) Forward-backward asymmetry is visible at least in AMPT. Near side h peak is backward shifted w. r. t. trigger h direction. AMPT mid-central bimp = 4 - 10 fm AMPT Peripheral bimp = 10 - fm | | < /4 near side | | > /4 away side h. Trig ~ -1 beam -4 -2 0 2 4 h = h. Asso - h. Trig 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China Shin. Ichi Esumi, Univ. of Tsukuba 15

Trigger h dependence of h distribution -2 h. Trig 2 bimp = 0 - 4 fm (associate yield per trigger with AMPT simulation) h. Trig | | < /4 near side | | > /4 away side bimp = 4 - 10 fm beam look at the asymmetry in h = h. Asso – h. Trig (associate h distribution with respect to trigger h) in order to see the hard-soft coupling with longitudinal density profile and/or expansion bimp = 10 - fm -4 -2 0 2 4 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China h = h. Asso - h. Trig -4 -2 0 2 4 Shin. Ichi Esumi, Univ. of Tsukuba 16

Use photons, Jets, single hadrons as trigger in order to look at correlated association emission to y Multi-particle correlation like 2+1 particle correlation analysis (Trig 1, Trig 2, Asso) can be used as largely modified jet and di-jet signal. ser energ o l d c rton n a ser tial pa o l er C ini g g i a tr the m m Ga Jet g (lar Trig 1 er g g i ) tr e. R ll ma (s Jet R) Asso Trig 2 er g g tri Trig 1 Trig 2 er rigg t ) n ro d a s 0 h bia ( e fac r u re s oss o m gy l d n a er n e r e mo n by e giv Trig 2 Asso Use “Trig 2 relative to Trig 1” as jet trigger condition, and look at distribution : “Associate relative to Trig 1” without jet-reconstruction bias To be used for n and h. Trig dependent analysis 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China Shin. Ichi Esumi, Univ. of Tsukuba 17

Summary Flow originated from initial geometry Expansion and freeze-out geometry Jet and multi-particle correlation Jet-correlation with respect to geometry Influence on bulk property 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China Shin. Ichi Esumi, Univ. of Tsukuba 18

Y(|∆η|>0. 7) = back-to-back 2 ridges + away-side two-(left/right) Gaussian 13/Aug/2013, Fluc. & Corr. Workshop, Chengdu, China Shin. Ichi Esumi, Univ. of Tsukuba 19