"!$#QCD 
QGP/%
TCHoU Steering committee meeting/Workshop, 2021/Mar, Online ALICE/LHC, STAR/RHIC,J-PARC/E16, RIKEN/RIBF,
   ShinIchi Esumi, Quark Nuclear Matters

1

L
Akiyama-YK-Yoshimura-Yamashita, JHEP2101(2021)121+NJL

*.,-3Nambu−Jona-Lasinio98;/'J

QCD

Q

Tricritical point

2nd! =0𝜓𝜓

1st0.10𝜇ure 1. Schematic view of expected phase diagram of the NJL model on the T -µ plane. Solidbroken curves represent the first- and second-order phase transitions, respectively. Closed circle
0.08
otes the tricritical point where the first-order phase transition line terminates.

Z=!

⎛⎝$n∈Λ

⎞dχ(n)dχ̄(n)⎠ e−S .

−<χχ>

ere n = (n1 , n2 , n3 , n4 )(∈ Z4 ) specifies a position in the lattice Λ, with the lattice spacing
χ(n) and χ̄(n) are Grassmann-valued fields without the Dirac structure. Since0.06
theycribe the Kogut-Susskind fermions, χ(n) and χ̄(n) are single-component Grassmannn+···+n
ν−1 withables. ην (n) is the staggered sign function defined by ην (n) = (−1) 1n) = 1. The partition function is defined in the ordinal manner:

0.04

JHEP01(2021)121! ≠0𝜓𝜓11.2
m = 0.01m = 0.02

0.60! ≈ 3.0

(2.2)

0.0

Tensor network representation-0.02

See ref. [25] for a diﬀerent TRG approach with the Kogut-Susskind fermion, where the TRG procedure
pplied to the Schwinger model after integrating out the fermion fields analytically.

D1.0

2.0

3.0

4.0

5.0

-0.2
0.0µC

JHEP01(2021)1(2.4)
0.00

1.02.0

3.0

4.0

5.0µN

Figure 6. Chiral condensate at m = 0.01 and 0.02 on 10244 lattice as a function
D =number55.
Figureof9.µ withParticle
density at m = 0.01 as a function of µ on 1284 and 10244 lattices.

–3–

evaluated via

Summary and7<6;"2(0#.13( 4)outlook
3 4A , 3 .3
/Z(m 3+ ∆m)
0 + 3∂ ln3Z ≈2 ln-A
3 −7ln Z(m)1 23
7 3 3 (3.7)2
2 7 A3, We 3
have investigated
the restoration of the chiral symmetry of the NJL model in the∂m∆m  =!
5<:4<0 employing) the Kogut-Susskind fermion action ondense region>?
at very
low temperature,with ∆m = 0.01. In figure 6, we plot the µ dependence of the chiral condensate at
4 , which is in the thermodynamic limit at zerotheextremely
large
latticeofV=1024
 4 lattice.
$&=!
%*>&m = 0.01 and 0.02
on the L4 = 1024
The signals show slight fluctuationsas atemperature, essentially. The first-order phase transition is clearly observed using the&function of µ around the transition point. Away from the transition point, we have found

JHEP01(2021)120.2

h α ∈ R and ϵ(n) = (−1)n1 +n2 +n3 +n4 .

0.0
introduce the tensor network representation for eq. (2.2) in a similar way with refs. [10,3 Hereafter, we set a = 1 for simplicity. Firstly, we expand the local Boltzmann weights! ≈ 3.0

0.4

(2.3)

χ̄(n) → χ̄(n)eiαϵ(n)L = 128
L = 1024

0.8

vanishing mass m, eq. (2.1) is invariant under the following continuous chiral transfor0.02tion:
χ(n) → eiαϵ(n) χ(n),

1.0

<n>

𝑇chiral condensate as an order parameter. At the critical chemical potential,
we alsofind Quark Nuclear Matters
TCHoU Steering committee
meeting/Workshop, 2021/Mar, Online
ShinIchiEsumi,
little response in ⟨χ̄(n)χ(n)⟩ to changes in mass. Figure 7 presents the results in the chiral2

7J8F50E/+2)-A
Y]>7J

K

110Sn, 80Zr etc. <c2018 123

M^N>7J8F(I(R$)

4@[&S,<cLSZD



=69O

RI@RIBF

Snd'
2018 113=6Nid'2018 113=62021 43=6`S

,X1LS17Ne17F,"!%LS30P
TCHoU Steering committee meeting/Workshop, 2021/Mar, Online••••••

U\?[&SaQH#%
PWMRC_10V G:
2015V33.F
2018V113 <cLS=6NiSnd'
2018V123 b;*Bd'=69O
2021V43 Nid' T]=6`S
ShinIchi Esumi, Quark Nuclear Matters3

MS03 case

0643

Topic : Ejection timing effectFor next Ni-exp. (DAY2)

79As ●

Ge ●77Ga ●
76Zn ●
75Cu ●

à-2<'TOF [ns]00F3-pla to ﬂat-top center : min. ~1030ns"*<'

Kicker field [gauss]

dp/p [%]

2m/q of 76Zn, 75Cu (Bρ-method)78Ge
We shouldIsochrotake care
only(T0) injection timing but also ejec
ref. : notMass ref. : 79As, 78Ge, 77Ga

“omote” run
79
As, 78Ge, 77Ga, 75Cu

200ns

“ura” run
76
Zn

200ns
Propagation time from F3 [ns]• 2020;10(&1RI!##+9,%:
・Spread of arrival time @Bρ=4.665Tm-> 80~90ns with 5 nuclides• 2021;4(8=Ni@$.?57/)+>7

Kicker field for ejection

・Flight time:76Zn 152MeV/u (for 74Ni run): 1065ns

Kicker field [gauss]78



Adjust ejection timin

78Ga 154MeV/u (for 75Ni run): 1060ns
78Zn 145MeV/u (for 76Ni run): 1085ns

TCHoU Steering committee meeting/Workshop, 2021/Mar, Online

ShinIchi Esumi, Quark Nuclear Matters

4

ALICE"CERN) QCD*)

PHENIX

RHIC

*+"0


STAR

!

1,1#*+!BNL

STAR"BNL#ATLAS"/-0"

%

(.$!

ALICE$!
FOCAL(.&LHCTCHoU Steering committee meeting/Workshop, 2021/Mar, Online

ALICE

CERN

'ShinIchi Esumi, Quark Nuclear Matters5•2020 C• 2018 M
5.02 TeV•
13 TeVM DCal•zDIM•Ml• 2015 M
5.02 TeV
0M,1y•• ALICE Tire 2 GridMo••••••

2027 M"!#DIr(Phys. Lett. B 804 (2020) 135377)

M1 (FoCal)
GIW

2LP)
iz
FoCalM
L(Nucl. Inst. Meth. 988 (2021) 164796)
2018
M A
mini-FoCal
Mv
TDRFoCal tNALICE(2020 5 ) LHCCk6
TDR
L F
MR&D2021 11z
E FoCal 

TCHoU Steering committee meeting/Workshop, 2021/Mar, Online

at

ShinIchi Esumi, Quark Nuclear Matters

6

CCRTAPRL 126 (2021) 92301

Higher order fluctuation (4th order k4)

Temp.

C. P.

BES-IIDens.

FXT
PRL107(2011)
052301
M. Stephanov

Temp.
Beam Energy

HS
2

CI

TCHoU Steering committee meeting/Workshop, 2021/Mar, Online

ShinIchi Esumi, Quark Nuclear Matters7! 

from squeeze-out (v2<0) toin-plane elliptic expansion (v2>0)
PRC 61 (2000) 24909J. Brachmann et al.

dv1/dyPRL 120 (2018) 62301

arXiv:2007.14005(accepted in PRC) for 4.5 GeV

3-7 GeV (FXT)
7-27 GeV (COL)
BES-II in progress

TCHoU Steering committee meeting/Workshop, 2021/Mar, Online

3-7 GeV (FXT)
7-27 GeV (COL)
BES-II in progress
ShinIchi Esumi, Quark Nuclear Matters8      

PRL 123 (2019) 132301 (STAR)

L B

Z pol. by v2

Nature 548 (2017) 62 (STAR)
3-7 GeV (FXT)
7-27 GeV (COL)
BES-II in progress
TCHoU Steering committee meeting/Workshop, 2021/Mar, Online

ShinIchi Esumi, Quark Nuclear Matters

9iSQCDiS30/Mar (Tue) 9:30-17:00 :Workshop for the Division of Quark Nuclear MattersN

9:30 Toshihiro Nonaka
9:50 Risa Nishitani

S

10:10 Takafumi Niida
10:30 Kosuke Okubo: Exploring the QCD phase diagram with higher-order fluctuations: Measurements of Net-Proton Fluctuations for p+p Collisions at 200 GeV
from the STAR experiment: Polarization and chiral magnetic measurements: Global polarization measurements at 3, 7 and 54 GeV Au+Au collisions
at RHIC

10:50 coffee break (20)QGP/LHC-ALICE
RHIC-STAR
J-PARC-E18

HF FoCal,nMRPC

http://www.u.tsukuba.ac.jp/~esumi.shinichi.gn/temp/TCHoU_workshop_2021Mar.pdf

11:10 Takahito Todoroki: Small system flow measurements
11:30 Ashutosh K. Pandey : HBT measurements w.r.t. Psi1
11:50 Moe Isshiki: Measurements of Lambda-Lambda and Xi-Xi Correlation Functions
in Au+Au at 200 GeV
12:10 lunch break (70)
13:20 Shingo Sakai
13:40 Shunya Chiba
14:00 Momo Eshita
14:20 Park Hanseo
14:40 coffee break (20)

: Heavy-flavor measurements at LHC: Heavy-flavor electrons: Heavy-flavor jets
: pi0/eta in jet at 13 TeV pp collisions at LHC-ALICE experiment

15:00 Olivier Bourrion (LPSC Grenoble) : FoCal-E pad readout (20’)
15:20 Motoi Inaba (Tsukuba Tech): FoCal final prototype production and plan (30’)
15:50 Everyone: Discussion on FoCal plan for 2021 / 2022 (20’)
16:10 tea break (10)
16:20 Yuji Goto (RIKEN): FoCal, RHICf-II and EIC (20’)
16:40 Thomas Peitzmann (Utrecht): FoCal-E pixel (20’)
Special FoCal session at 15:00 - 17:00 (JST) = 8:00 - 10:00 (CEST)

TCHoU Steering committee meeting/Workshop, 2021/Mar, Online

ShinIchi Esumi, Quark Nuclear Matters1032A)
048S)
9 1K481S)
LHC481QGPB))

ALICE

48S)
E

TCHoU Steering committee meeting/Workshop, 2021/Mar, Online

48( ( K03

ShinIchi Esumi, Quark Nuclear Matters11