doi: 10.1103/PhysRevLett.112.162301.
Epub 2014 Apr 23.
Beam-energy dependence of the directed flow of protons, antiprotons, and pions in Au+Au collisions
L Adamczyk
1
, J K Adkins
2
, G Agakishiev
3
, M M Aggarwal
4
, Z Ahammed
5
, I Alekseev
6
, J Alford
7
, C D Anson
8
, A Aparin
3
, D Arkhipkin
9
, E C Aschenauer
9
, G S Averichev
3
, A Banerjee
5
, D R Beavis
9
, R Bellwied
10
, A Bhasin
11
, A K Bhati
4
, P Bhattarai
12
, H Bichsel
13
, J Bielcik
14
, J Bielcikova
15
, L C Bland
9
, I G Bordyuzhin
6
, W Borowski
16
, J Bouchet
7
, A V Brandin
17
, S G Brovko
18
, S Bültmann
19
, I Bunzarov
3
, T P Burton
9
, J Butterworth
20
, H Caines
21
, M Calderón de la Barca Sánchez
18
, D Cebra
18
, R Cendejas
22
, M C Cervantes
23
, P Chaloupka
14
, Z Chang
23
, S Chattopadhyay
5
, H F Chen
24
, J H Chen
25
, L Chen
26
, J Cheng
27
, M Cherney
28
, A Chikanian
21
, W Christie
9
, J Chwastowski
29
, M J M Codrington
12
, G Contin
30
, J G Cramer
13
, H J Crawford
31
, X Cui
24
, S Das
32
, A Davila Leyva
12
, L C De Silva
28
, R R Debbe
9
, T G Dedovich
3
, J Deng
33
, A A Derevschikov
34
, R Derradi de Souza
35
, S Dhamija
36
, B di Ruzza
9
, L Didenko
9
, C Dilks
22
, F Ding
18
, P Djawotho
23
, X Dong
30
, J L Drachenberg
37
, J E Draper
18
, C M Du
38
, L E Dunkelberger
39
, J C Dunlop
9
, L G Efimov
3
, J Engelage
31
, K S Engle
40
, G Eppley
20
, L Eun
30
, O Evdokimov
41
, O Eyser
9
, R Fatemi
2
, S Fazio
9
, J Fedorisin
3
, P Filip
3
, E Finch
21
, Y Fisyak
9
, C E Flores
18
, C A Gagliardi
23
, D R Gangadharan
8
, D Garand
42
, F Geurts
20
, A Gibson
37
, M Girard
43
, S Gliske
44
, L Greiner
30
, D Grosnick
37
, D S Gunarathne
45
, Y Guo
24
, A Gupta
11
, S Gupta
11
, W Guryn
9
, B Haag
18
, A Hamed
23
, L-X Han
25
, R Haque
46
, J W Harris
21
, S Heppelmann
22
, A Hirsch
42
, G W Hoffmann
12
, D J Hofman
41
, S Horvat
21
, B Huang
9
, H Z Huang
39
, X Huang
27
, P Huck
26
, T J Humanic
8
, G Igo
39
, W W Jacobs
36
, H Jang
47
, E G Judd
31
, S Kabana
16
, D Kalinkin
6
, K Kang
27
, K Kauder
41
, H W Ke
9
, D Keane
7
, A Kechechyan
3
, A Kesich
18
, Z H Khan
41
, D P Kikola
43
, I Kisel
48
, A Kisiel
43
, D D Koetke
37
, T Kollegger
48
, J Konzer
42
, I Koralt
19
, L Kotchenda
17
, A F Kraishan
45
, P Kravtsov
17
, K Krueger
44
, I Kulakov
48
, L Kumar
46
, R A Kycia
29
, M A C Lamont
9
, J M Landgraf
9
, K D Landry
39
, J Lauret
9
, A Lebedev
9
, R Lednicky
3
, J H Lee
9
, M J Levine
9
, C Li
24
, W Li
25
, X Li
42
, X Li
45
, Y Li
27
, Z M Li
26
, M A Lisa
8
, F Liu
26
, T Ljubicic
9
, W J Llope
20
, M Lomnitz
7
, R S Longacre
9
, X Luo
26
, G L Ma
25
, Y G Ma
25
, D M M D Madagodagettige Don
28
, D P Mahapatra
32
, R Majka
21
, S Margetis
7
, C Markert
12
, H Masui
30
, H S Matis
30
, D McDonald
10
, T S McShane
28
, N G Minaev
34
, S Mioduszewski
23
, B Mohanty
46
, M M Mondal
23
, D A Morozov
34
, M K Mustafa
30
, B K Nandi
49
, Md Nasim
46
, T K Nayak
5
, J M Nelson
50
, G Nigmatkulov
17
, L V Nogach
34
, S Y Noh
47
, J Novak
51
, S B Nurushev
34
, G Odyniec
30
, A Ogawa
9
, K Oh
52
, A Ohlson
21
, V Okorokov
17
, E W Oldag
12
, D L Olvitt Jr
45
, M Pachr
14
, B S Page
36
, S K Pal
5
, Y X Pan
39
, Y Pandit
41
, Y Panebratsev
3
, T Pawlak
43
, B Pawlik
53
, H Pei
26
, C Perkins
31
, W Peryt
43
, P Pile
9
, M Planinic
54
, J Pluta
43
, N Poljak
54
, J Porter
30
, A M Poskanzer
30
, N K Pruthi
4
, M Przybycien
1
, P R Pujahari
49
, J Putschke
55
, H Qiu
30
, A Quintero
7
, S Ramachandran
2
, R Raniwala
56
, S Raniwala
56
, R L Ray
12
, C K Riley
21
, H G Ritter
30
, J B Roberts
20
, O V Rogachevskiy
3
, J L Romero
18
, J F Ross
28
, A Roy
5
, L Ruan
9
, J Rusnak
15
, O Rusnakova
14
, N R Sahoo
23
, P K Sahu
32
, I Sakrejda
30
, S Salur
30
, J Sandweiss
21
, E Sangaline
18
, A Sarkar
49
, J Schambach
12
, R P Scharenberg
42
, A M Schmah
30
, W B Schmidke
9
, N Schmitz
57
, J Seger
28
, P Seyboth
57
, N Shah
39
, E Shahaliev
3
, P V Shanmuganathan
7
, M Shao
24
, B Sharma
4
, W Q Shen
25
, S S Shi
30
, Q Y Shou
25
, E P Sichtermann
30
, R N Singaraju
5
, M J Skoby
36
, D Smirnov
9
, N Smirnov
21
, D Solanki
56
, P Sorensen
9
, H M Spinka
44
, B Srivastava
42
, T D S Stanislaus
37
, J R Stevens
58
, R Stock
48
, M Strikhanov
17
, B Stringfellow
42
, M Sumbera
15
, X Sun
30
, X M Sun
30
, Y Sun
24
, Z Sun
38
, B Surrow
45
, D N Svirida
6
, T J M Symons
30
, M A Szelezniak
30
, J Takahashi
35
, A H Tang
9
, Z Tang
24
, T Tarnowsky
51
, J H Thomas
30
, A R Timmins
10
, D Tlusty
15
, M Tokarev
3
, S Trentalange
39
, R E Tribble
23
, P Tribedy
5
, B A Trzeciak
14
, O D Tsai
39
, J Turnau
53
, T Ullrich
9
, D G Underwood
44
, G Van Buren
9
, G van Nieuwenhuizen
58
, M Vandenbroucke
45
, J A Vanfossen Jr
7
, R Varma
49
, G M S Vasconcelos
35
, A N Vasiliev
34
, R Vertesi
15
, F Videbæk
9
, Y P Viyogi
5
, S Vokal
3
, A Vossen
36
, M Wada
12
, F Wang
42
, G Wang
39
, H Wang
9
, J S Wang
38
, X L Wang
24
, Y Wang
27
, Y Wang
41
, G Webb
2
, J C Webb
9
, G D Westfall
51
, H Wieman
30
, S W Wissink
36
, R Witt
40
, Y F Wu
26
, Z Xiao
27
, W Xie
42
, K Xin
20
, H Xu
38
, J Xu
26
, N Xu
30
, Q H Xu
33
, Y Xu
24
, Z Xu
9
, W Yan
27
, C Yang
24
, Y Yang
38
, Y Yang
26
, Z Ye
41
, P Yepes
20
, L Yi
42
, K Yip
9
, I-K Yoo
52
, N Yu
26
, Y Zawisza
24
, H Zbroszczyk
43
, W Zha
24
, J B Zhang
26
, J L Zhang
33
, S Zhang
25
, X P Zhang
27
, Y Zhang
24
, Z P Zhang
24
, F Zhao
39
, J Zhao
26
, C Zhong
25
, X Zhu
27
, Y H Zhu
25
, Y Zoulkarneeva
3
, M Zyzak
48
; (STAR Collaboration)
Affiliations
Affiliations
- 1 AGH University of Science and Technology, Cracow, Poland.
- 2 University of Kentucky, Lexington, Kentucky, 40506-0055, USA.
- 3 Joint Institute for Nuclear Research, Dubna 141 980, Russia.
- 4 Panjab University, Chandigarh 160014, India.
- 5 Variable Energy Cyclotron Centre, Kolkata 700064, India.
- 6 Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia.
- 7 Kent State University, Kent, Ohio 44242, USA.
- 8 Ohio State University, Columbus, Ohio 43210, USA.
- 9 Brookhaven National Laboratory, Upton, New York 11973, USA.
- 10 University of Houston, Houston, Texas 77204, USA.
- 11 University of Jammu, Jammu 180001, India.
- 12 University of Texas, Austin, Texas 78712, USA.
- 13 University of Washington, Seattle, Washington 98195, USA.
- 14 Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
- 15 Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic.
- 16 SUBATECH, Nantes, France.
- 17 Moscow Engineering Physics Institute, Moscow, Russia.
- 18 University of California, Davis, California 95616, USA.
- 19 Old Dominion University, Norfolk, Virginia 23529, USA.
- 20 Rice University, Houston, Texas 77251, USA.
- 21 Yale University, New Haven, Connecticut 06520, USA.
- 22 Pennsylvania State University, University Park, Pennsylvania 16802, USA.
- 23 Texas A&M University, College Station, Texas 77843, USA.
- 24 University of Science and Technology of China, Hefei 230026, China.
- 25 Shanghai Institute of Applied Physics, Shanghai 201800, China.
- 26 Central China Normal University (HZNU), Wuhan 430079, China.
- 27 Tsinghua University, Beijing 100084, China.
- 28 Creighton University, Omaha, Nebraska 68178, USA.
- 29 Cracow University of Technology, Cracow, Poland.
- 30 Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
- 31 University of California, Berkeley, California 94720, USA.
- 32 Institute of Physics, Bhubaneswar 751005, India.
- 33 Shandong University, Jinan, Shandong 250100, China.
- 34 Institute of High Energy Physics, Protvino, Russia.
- 35 Universidade Estadual de Campinas, Sao Paulo, Brazil.
- 36 Indiana University, Bloomington, Indiana 47408, USA.
- 37 Valparaiso University, Valparaiso, Indiana 46383, USA.
- 38 Institute of Modern Physics, Lanzhou, China.
- 39 University of California, Los Angeles, California 90095, USA.
- 40 United States Naval Academy, Annapolis, Maryland, 21402, USA.
- 41 University of Illinois at Chicago, Chicago, Illinois 60607, USA.
- 42 Purdue University, West Lafayette, Indiana 47907, USA.
- 43 Warsaw University of Technology, Warsaw, Poland.
- 44 Argonne National Laboratory, Argonne, Illinois 60439, USA.
- 45 Temple University, Philadelphia, Pennsylvania 19122, USA.
- 46 National Institute of Science Education and Research, Bhubaneswar 751005, India.
- 47 Korea Institute of Science and Technology Information, Daejeon, Korea.
- 48 Frankfurt Institute for Advanced Studies FIAS, Germany.
- 49 Indian Institute of Technology, Mumbai, India.
- 50 University of Birmingham, Birmingham, United Kingdom.
- 51 Michigan State University, East Lansing, Michigan 48824, USA.
- 52 Pusan National University, Pusan, Republic of Korea.
- 53 Institute of Nuclear Physics PAN, Cracow, Poland.
- 54 University of Zagreb, Zagreb HR-10002, Croatia.
- 55 Wayne State University, Detroit, Michigan 48201, USA.
- 56 University of Rajasthan, Jaipur 302004, India.
- 57 Max-Planck-Institut für Physik, Munich, Germany.
- 58 Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.
- PMID: 24815640
- DOI: 10.1103/PhysRevLett.112.162301
Item in Clipboard
Beam-energy dependence of the directed flow of protons, antiprotons, and pions in Au+Au collisions
L Adamczyk et al.
Phys Rev Lett.
.
Free article
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Format
doi: 10.1103/PhysRevLett.112.162301.
Epub 2014 Apr 23.
Authors
L Adamczyk
1
, J K Adkins
2
, G Agakishiev
3
, M M Aggarwal
4
, Z Ahammed
5
, I Alekseev
6
, J Alford
7
, C D Anson
8
, A Aparin
3
, D Arkhipkin
9
, E C Aschenauer
9
, G S Averichev
3
, A Banerjee
5
, D R Beavis
9
, R Bellwied
10
, A Bhasin
11
, A K Bhati
4
, P Bhattarai
12
, H Bichsel
13
, J Bielcik
14
, J Bielcikova
15
, L C Bland
9
, I G Bordyuzhin
6
, W Borowski
16
, J Bouchet
7
, A V Brandin
17
, S G Brovko
18
, S Bültmann
19
, I Bunzarov
3
, T P Burton
9
, J Butterworth
20
, H Caines
21
, M Calderón de la Barca Sánchez
18
, D Cebra
18
, R Cendejas
22
, M C Cervantes
23
, P Chaloupka
14
, Z Chang
23
, S Chattopadhyay
5
, H F Chen
24
, J H Chen
25
, L Chen
26
, J Cheng
27
, M Cherney
28
, A Chikanian
21
, W Christie
9
, J Chwastowski
29
, M J M Codrington
12
, G Contin
30
, J G Cramer
13
, H J Crawford
31
, X Cui
24
, S Das
32
, A Davila Leyva
12
, L C De Silva
28
, R R Debbe
9
, T G Dedovich
3
, J Deng
33
, A A Derevschikov
34
, R Derradi de Souza
35
, S Dhamija
36
, B di Ruzza
9
, L Didenko
9
, C Dilks
22
, F Ding
18
, P Djawotho
23
, X Dong
30
, J L Drachenberg
37
, J E Draper
18
, C M Du
38
, L E Dunkelberger
39
, J C Dunlop
9
, L G Efimov
3
, J Engelage
31
, K S Engle
40
, G Eppley
20
, L Eun
30
, O Evdokimov
41
, O Eyser
9
, R Fatemi
2
, S Fazio
9
, J Fedorisin
3
, P Filip
3
, E Finch
21
, Y Fisyak
9
, C E Flores
18
, C A Gagliardi
23
, D R Gangadharan
8
, D Garand
42
, F Geurts
20
, A Gibson
37
, M Girard
43
, S Gliske
44
, L Greiner
30
, D Grosnick
37
, D S Gunarathne
45
, Y Guo
24
, A Gupta
11
, S Gupta
11
, W Guryn
9
, B Haag
18
, A Hamed
23
, L-X Han
25
, R Haque
46
, J W Harris
21
, S Heppelmann
22
, A Hirsch
42
, G W Hoffmann
12
, D J Hofman
41
, S Horvat
21
, B Huang
9
, H Z Huang
39
, X Huang
27
, P Huck
26
, T J Humanic
8
, G Igo
39
, W W Jacobs
36
, H Jang
47
, E G Judd
31
, S Kabana
16
, D Kalinkin
6
, K Kang
27
, K Kauder
41
, H W Ke
9
, D Keane
7
, A Kechechyan
3
, A Kesich
18
, Z H Khan
41
, D P Kikola
43
, I Kisel
48
, A Kisiel
43
, D D Koetke
37
, T Kollegger
48
, J Konzer
42
, I Koralt
19
, L Kotchenda
17
, A F Kraishan
45
, P Kravtsov
17
, K Krueger
44
, I Kulakov
48
, L Kumar
46
, R A Kycia
29
, M A C Lamont
9
, J M Landgraf
9
, K D Landry
39
, J Lauret
9
, A Lebedev
9
, R Lednicky
3
, J H Lee
9
, M J Levine
9
, C Li
24
, W Li
25
, X Li
42
, X Li
45
, Y Li
27
, Z M Li
26
, M A Lisa
8
, F Liu
26
, T Ljubicic
9
, W J Llope
20
, M Lomnitz
7
, R S Longacre
9
, X Luo
26
, G L Ma
25
, Y G Ma
25
, D M M D Madagodagettige Don
28
, D P Mahapatra
32
, R Majka
21
, S Margetis
7
, C Markert
12
, H Masui
30
, H S Matis
30
, D McDonald
10
, T S McShane
28
, N G Minaev
34
, S Mioduszewski
23
, B Mohanty
46
, M M Mondal
23
, D A Morozov
34
, M K Mustafa
30
, B K Nandi
49
, Md Nasim
46
, T K Nayak
5
, J M Nelson
50
, G Nigmatkulov
17
, L V Nogach
34
, S Y Noh
47
, J Novak
51
, S B Nurushev
34
, G Odyniec
30
, A Ogawa
9
, K Oh
52
, A Ohlson
21
, V Okorokov
17
, E W Oldag
12
, D L Olvitt Jr
45
, M Pachr
14
, B S Page
36
, S K Pal
5
, Y X Pan
39
, Y Pandit
41
, Y Panebratsev
3
, T Pawlak
43
, B Pawlik
53
, H Pei
26
, C Perkins
31
, W Peryt
43
, P Pile
9
, M Planinic
54
, J Pluta
43
, N Poljak
54
, J Porter
30
, A M Poskanzer
30
, N K Pruthi
4
, M Przybycien
1
, P R Pujahari
49
, J Putschke
55
, H Qiu
30
, A Quintero
7
, S Ramachandran
2
, R Raniwala
56
, S Raniwala
56
, R L Ray
12
, C K Riley
21
, H G Ritter
30
, J B Roberts
20
, O V Rogachevskiy
3
, J L Romero
18
, J F Ross
28
, A Roy
5
, L Ruan
9
, J Rusnak
15
, O Rusnakova
14
, N R Sahoo
23
, P K Sahu
32
, I Sakrejda
30
, S Salur
30
, J Sandweiss
21
, E Sangaline
18
, A Sarkar
49
, J Schambach
12
, R P Scharenberg
42
, A M Schmah
30
, W B Schmidke
9
, N Schmitz
57
, J Seger
28
, P Seyboth
57
, N Shah
39
, E Shahaliev
3
, P V Shanmuganathan
7
, M Shao
24
, B Sharma
4
, W Q Shen
25
, S S Shi
30
, Q Y Shou
25
, E P Sichtermann
30
, R N Singaraju
5
, M J Skoby
36
, D Smirnov
9
, N Smirnov
21
, D Solanki
56
, P Sorensen
9
, H M Spinka
44
, B Srivastava
42
, T D S Stanislaus
37
, J R Stevens
58
, R Stock
48
, M Strikhanov
17
, B Stringfellow
42
, M Sumbera
15
, X Sun
30
, X M Sun
30
, Y Sun
24
, Z Sun
38
, B Surrow
45
, D N Svirida
6
, T J M Symons
30
, M A Szelezniak
30
, J Takahashi
35
, A H Tang
9
, Z Tang
24
, T Tarnowsky
51
, J H Thomas
30
, A R Timmins
10
, D Tlusty
15
, M Tokarev
3
, S Trentalange
39
, R E Tribble
23
, P Tribedy
5
, B A Trzeciak
14
, O D Tsai
39
, J Turnau
53
, T Ullrich
9
, D G Underwood
44
, G Van Buren
9
, G van Nieuwenhuizen
58
, M Vandenbroucke
45
, J A Vanfossen Jr
7
, R Varma
49
, G M S Vasconcelos
35
, A N Vasiliev
34
, R Vertesi
15
, F Videbæk
9
, Y P Viyogi
5
, S Vokal
3
, A Vossen
36
, M Wada
12
, F Wang
42
, G Wang
39
, H Wang
9
, J S Wang
38
, X L Wang
24
, Y Wang
27
, Y Wang
41
, G Webb
2
, J C Webb
9
, G D Westfall
51
, H Wieman
30
, S W Wissink
36
, R Witt
40
, Y F Wu
26
, Z Xiao
27
, W Xie
42
, K Xin
20
, H Xu
38
, J Xu
26
, N Xu
30
, Q H Xu
33
, Y Xu
24
, Z Xu
9
, W Yan
27
, C Yang
24
, Y Yang
38
, Y Yang
26
, Z Ye
41
, P Yepes
20
, L Yi
42
, K Yip
9
, I-K Yoo
52
, N Yu
26
, Y Zawisza
24
, H Zbroszczyk
43
, W Zha
24
, J B Zhang
26
, J L Zhang
33
, S Zhang
25
, X P Zhang
27
, Y Zhang
24
, Z P Zhang
24
, F Zhao
39
, J Zhao
26
, C Zhong
25
, X Zhu
27
, Y H Zhu
25
, Y Zoulkarneeva
3
, M Zyzak
48
; (STAR Collaboration)
Affiliations
- 1 AGH University of Science and Technology, Cracow, Poland.
- 2 University of Kentucky, Lexington, Kentucky, 40506-0055, USA.
- 3 Joint Institute for Nuclear Research, Dubna 141 980, Russia.
- 4 Panjab University, Chandigarh 160014, India.
- 5 Variable Energy Cyclotron Centre, Kolkata 700064, India.
- 6 Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia.
- 7 Kent State University, Kent, Ohio 44242, USA.
- 8 Ohio State University, Columbus, Ohio 43210, USA.
- 9 Brookhaven National Laboratory, Upton, New York 11973, USA.
- 10 University of Houston, Houston, Texas 77204, USA.
- 11 University of Jammu, Jammu 180001, India.
- 12 University of Texas, Austin, Texas 78712, USA.
- 13 University of Washington, Seattle, Washington 98195, USA.
- 14 Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
- 15 Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic.
- 16 SUBATECH, Nantes, France.
- 17 Moscow Engineering Physics Institute, Moscow, Russia.
- 18 University of California, Davis, California 95616, USA.
- 19 Old Dominion University, Norfolk, Virginia 23529, USA.
- 20 Rice University, Houston, Texas 77251, USA.
- 21 Yale University, New Haven, Connecticut 06520, USA.
- 22 Pennsylvania State University, University Park, Pennsylvania 16802, USA.
- 23 Texas A&M University, College Station, Texas 77843, USA.
- 24 University of Science and Technology of China, Hefei 230026, China.
- 25 Shanghai Institute of Applied Physics, Shanghai 201800, China.
- 26 Central China Normal University (HZNU), Wuhan 430079, China.
- 27 Tsinghua University, Beijing 100084, China.
- 28 Creighton University, Omaha, Nebraska 68178, USA.
- 29 Cracow University of Technology, Cracow, Poland.
- 30 Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
- 31 University of California, Berkeley, California 94720, USA.
- 32 Institute of Physics, Bhubaneswar 751005, India.
- 33 Shandong University, Jinan, Shandong 250100, China.
- 34 Institute of High Energy Physics, Protvino, Russia.
- 35 Universidade Estadual de Campinas, Sao Paulo, Brazil.
- 36 Indiana University, Bloomington, Indiana 47408, USA.
- 37 Valparaiso University, Valparaiso, Indiana 46383, USA.
- 38 Institute of Modern Physics, Lanzhou, China.
- 39 University of California, Los Angeles, California 90095, USA.
- 40 United States Naval Academy, Annapolis, Maryland, 21402, USA.
- 41 University of Illinois at Chicago, Chicago, Illinois 60607, USA.
- 42 Purdue University, West Lafayette, Indiana 47907, USA.
- 43 Warsaw University of Technology, Warsaw, Poland.
- 44 Argonne National Laboratory, Argonne, Illinois 60439, USA.
- 45 Temple University, Philadelphia, Pennsylvania 19122, USA.
- 46 National Institute of Science Education and Research, Bhubaneswar 751005, India.
- 47 Korea Institute of Science and Technology Information, Daejeon, Korea.
- 48 Frankfurt Institute for Advanced Studies FIAS, Germany.
- 49 Indian Institute of Technology, Mumbai, India.
- 50 University of Birmingham, Birmingham, United Kingdom.
- 51 Michigan State University, East Lansing, Michigan 48824, USA.
- 52 Pusan National University, Pusan, Republic of Korea.
- 53 Institute of Nuclear Physics PAN, Cracow, Poland.
- 54 University of Zagreb, Zagreb HR-10002, Croatia.
- 55 Wayne State University, Detroit, Michigan 48201, USA.
- 56 University of Rajasthan, Jaipur 302004, India.
- 57 Max-Planck-Institut für Physik, Munich, Germany.
- 58 Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.
- PMID: 24815640
- DOI: 10.1103/PhysRevLett.112.162301
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Abstract
Rapidity-odd directed flow (v1) measurements for charged pions, protons, and antiprotons near midrapidity (y=0) are reported in sNN=7.7, 11.5, 19.6, 27, 39, 62.4, and 200 GeV Au+Au collisions as recorded by the STAR detector at the Relativistic Heavy Ion Collider. At intermediate impact parameters, the proton and net-proton slope parameter dv1/dy|y=0 shows a minimum between 11.5 and 19.6 GeV. In addition, the net-proton dv1/dy|y=0 changes sign twice between 7.7 and 39 GeV. The proton and net-proton results qualitatively resemble predictions of a hydrodynamic model with a first-order phase transition from hadronic matter to deconfined matter, and differ from hadronic transport calculations.
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