Measurement of negatively charged pion spectra in inelastic p+p interactions at \(p_{\mathbf {lab}}= \) 20, 31, 40, 80 and 158 GeV/c
NA
/SHINE Collaboration
N. Abgrall
16
A. Aduszkiewicz
15
Y. Ali
14
T. Anticic
21
N. Antoniou
20
B. Baatar
19
F. Bay
18
A. Blondel
16
J. Blumer
23
M. Bogomilov
22
A. Bravar
16
J. Brzychczyk
14
S. A.Bunyatov
19
O. Busygina
17
P. Christakoglou
20
T. Czopowicz
7
N. Davis
20
S. Debieux
16
H. Dembinski
23
F. Diakonos
20
S. Di Luise
18
W. Dominik
15
T. Drozhzhova
8
J. Dumarchez
5
K. Dynowski
7
R. Engel
23
A. Ereditato
6
G. A. Feofilov
8
Z. Fodor
3
A. Fulop
3
M. Gazdzicki
1
4
M. Golubeva
17
K. Grebieszkow
7
A. Grzeszczuk
2
F. Guber
17
A. Haesler
16
T. Hasegawa
0
M. Hierholzer
6
R. Idczak
10
S. Igolkin
8
A. Ivashkin
17
D. Jokovic
9
K. Kadija
21
A. Kapoyannis
20
E. Kaptur
2
D. Kieczewska
15
A. Korzenev
16
P. Kovesarki
10
S. Kowalski
2
A. Krasnoperov
19
A. Kurepin
17
D. Larsen
2
A. Lszl
3
V. V. Lyubushkin
19
M. Mackowiak-Pawowska
1
Z. Majka
14
B. Maksiak
7
A. I. Malakhov
19
D. Manic
9
A. Marcinek
14
V. Marin
17
K. Marton
3
H.-J. Mathes
23
T. Matulewicz
15
V. Matveev
17
19
G. L. Melkumov
19
St. Mrwczy nski
4
S. Murphy
16
T. Nakadaira
0
M. Nirkko
6
K. Nishikawa
0
T. Palczewski
12
G. Palla
3
A. D. Panagiotou
20
T. Paul
13
C. Pistillo
6
W. Peryt
7
O. Petukhov
17
R. Paneta
14
J. Pluta
7
B. A. Popov
5
19
M. Posiadaa
15
S. Puawski
2
J. Puzovic
9
W. Rauch
M. Ravonel
16
A. Redij
6
R. Renfordt
1
A. Robert
5
D. Rhrich
E. Rondio
12
M. Roth
23
A. Rubbia
18
A. Rustamov
1
M. Rybczy nski
4
A. Sadovsky
17
K. Sakashita
0
M. Savic
9
K. Schmidt
2
T. Sekiguchi
0
P. Seyboth
4
D. Sgalaberna
18
M. Shibata
0
R. Sipos
3
E. Skrzypczak
15
M. Sodkowski
7
P. Staszel
14
G. Stefanek
4
J. Stepaniak
12
H. Strbele
1
T. ua
21
M. Szuba
23
M. Tada
0
V. Tereshchenko
19
T. Tolyhi
3
R. Tsenov
22
L. Turko
10
R. Ulrich
23
M. Unger
23
M. Vassiliou
20
D. Veberic
13
V. V. Vechernin
8
G. Vesztergombi
3
L. Vinogradov
8
A. Wilczek
2
Z. Wodarczyk
4
A. Wojtaszek-Szwarc
4
0
High Energy Accelerator Research Organization (KEK)
, Tsukuba, Ibaraki 305-0801,
Japan
1
University of Frankfurt
, Frankfurt,
Germany
2
University of Silesia
, Katowice,
Poland
3
KFKI Research Institute for Particle and Nuclear Physics
, Budapest,
Hungary
4
Jan Kochanowski University in Kielce
, Kielce,
Poland
5
LPNHE,
University of Paris VI and VII
,
Paris, France
6
University of Bern
, Bern,
Switzerland
7
Warsaw University of Technology
, Warsaw,
Poland
8
St. Petersburg State University
, St. Petersburg,
Russia
9
University of Belgrade
, Belgrade,
Serbia
10
University of Wrocaw
, Wrocaw,
Poland
11
University of California
,
Irvine, USA
12
National Centre for Nuclear Research
, Warsaw,
Poland
13
Laboratory of Astroparticle Physics, University Nova Gorica
, Nova Gorica,
Slovenia
14
Jagiellonian University
, Cracow,
Poland
15
Faculty of Physics, University of Warsaw
, Warsaw,
Poland
16
University of Geneva
,
Geneva, Switzerland
17
Institute for Nuclear Research
,
Moscow, Russia
18
ETH,
Zurich, Switzerland
19
Joint Institute for Nuclear Research
, Dubna,
Russia
20
University of Athens
,
Athens, Greece
21
Rudjer Bokovic Institute
, Zagreb,
Croatia
22
Faculty of Physics, University of Sofia
, Sofia,
Bulgaria
23
Karlsruhe Institute of Technology
, Karlsruhe,
Germany
-
25 Fachhochschule Frankfurt, Frankfurt, Germany
26 University of Bergen, Bergen, Norway
Received: 14 October 2013 / Accepted: 21 February 2014 / Published online: 15 March 2014
The Author(s) 2014. This article is published with open access at Springerlink.com
Abstract We present experimental results on inclusive
spectra and mean multiplicities of negatively charged pions
produced in inelastic p+p interactions at incident projectile
momenta of 20, 31, 40, 80 and 158 GeV/c ( s = 6.3, 7.7,
8.8, 12.3 and 17.3 GeV, respectively). The measurements
were performed using the large acceptance NA61/SHINE
hadron spectrometer at the CERN super proton synchrotron.
Two-dimensional spectra are determined in terms of
rapidity and transverse momentum. Their properties such as the
width of rapidity distributions and the inverse slope
parameter of transverse mass spectra are extracted and their collision
energy dependences are presented. The results on inelastic
p+p interactions are compared with the corresponding data
on central Pb+Pb collisions measured by the NA49
experiment at the CERN SPS. The results presented in this paper are
part of the NA61/SHINE ion program devoted to the study
of the properties of the onset of deconfinement and search
for the critical point of strongly interacting matter. They are
required for interpretation of results on nucleusnucleus and
protonnucleus collisions.
1 Introduction
This paper presents experimental results on inclusive spectra
and mean multiplicities of negatively charged pions produced
in inelastic p+p interactions at 20, 31, 40, 80 and 158 GeV/c.
The measurements were performed by the multi-purpose
NA61/SHINEthe SPS Heavy Ion and Neutrino
Experiment [1]at the CERN Super Proton Synchrotron (SPS).
They are part of the NA61/SHINE ion program devoted to
the study of the properties of the onset of deconfinement (...truncated)