NA61 Papers

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2025-03-14
14:02

Multiplicity and net-electric charge fluctuations in central Ar+Sc interactions at 13A, 19A, 30A, 40A, 75A, and 150A GeV=c beam momenta measured by NA61/SHINE at the CERN SPS / Adhikary, H. (Jan Kochanowski U.) ; Adrich, P. (Warsaw, Inst. Nucl. Studies) ; Allison, K.K. (Colorado U.) ; Amin, N. (KIT, Karlsruhe) ; Andronov, E.V. (Unlisted) ; Arsene, I.-C. (U. Oslo (main)) ; Bajda, M. (Jagiellonian U.) ; Balkova, Y. (Silesia U.) ; Battaglia, D. (Notre Dame U.) ; Bazgir, A. (Jan Kochanowski U.) et al. /NA61
This paper presents results on multiplicity fluctuations of positively and negatively charged hadrons as well as net-electric charge fluctuations measured in central Ar+Sc interactions at beam momenta 13A, 19A, 30A, 40A, 75A, and 150A GeV=c. The fluctuation analysis is one of the tools to search for the predicted critical point of strongly interacting matter. [...]
arXiv:2503.22484; CERN-EP-2025-056; FERMILAB-PUB-25-0245-AD.- Geneva : CERN, 2025 - 23 p. Draft (restricted): PDF; Fulltext: CERN-EP-2025-056 - PDF; 2503.22484 - PDF;

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2024-10-22
11:53

Measurements of hadron production in 90 GeV/c proton-carbon interactions / Marino, A. D. (NA61/SHINE Collaboration) /NA61
This paper presents the multiplicity of neutral and charged hadrons produced in 90 GeV

/ c

$/c$ proton-carbon interactions from a dataset taken by the NA61/SHINE experiment in 2017. Particle identification via \dedx was performed for the charged hadrons

π^{\pm}

$\pi^\pm$ ,

K^{\pm}

$K^\pm$ , and

p / ¯ p

$p / \bar{p}$ ; the neutral hadrons

K_{S}^{0}

$K^0_S$ ,

Λ

$\Lambda$ , and

¯ Λ

$\bar{\Lambda}$ were identified via an invariant mass analysis of their decays to charged hadrons. [...]
CERN-EP-2024-280.- Geneva : CERN, 2024 Draft (restricted): PDF; Fulltext: PDF; External link: Additional Information

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2024-10-18
14:45

Measurement of the mass-changing, charge-changing and production cross sections of $^{11}$ C, $^{11}$ B and $^{10}$ B nuclei in $^{12}{\rm C}+p$ interactions at 13.5 GeV/ $c$ per nucleon. / Adhikary, H. (Jan Kochanowski U.) ; Adrich, P. (NCBJ, Warsaw) ; Allison, K.K. (Colorado U.) ; Amin, N. (KIT, Karlsruhe) ; Andronov, E.V. (Unlisted) ; Arsene, I.-C. (Oslo U.) ; Bajda, M. (Jagiellonian U.) ; Balkova, Y. (Silesia U.) ; Battaglia, D. (Notre Dame U.) ; Bazgir, A. (Jan Kochanowski U.) et al.
We report results from a 2018 pilot run to study the feasibility of nuclear fragmentation measurements with the NA61/SHINE experiment at the CERN SPS. These results are important for the interpretation of the production of light secondary cosmic-ray nuclei (Li, Be, and B) in the Galaxy. [...]
arXiv:2410.18273; CERN-EP-2024-278; FERMILAB-PUB-24-0788-AD.- Geneva : CERN, 2024 - 36 p. Draft (restricted): PDF; Fulltext: CERN-EP-2024-278 - PDF; 2410.18273 - PDF; 077054e2f57a40a2bfcd7d3fe56cd888 - PDF; External link: Fermilab Library Server

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2024-02-17
20:18

$K^0_S$ meson production in inelastic $p+p$ interactions at 31, 40 and 80 GeV/ $c$ beam momentum measured by NA61/SHINE at the CERN SPS / Adhikary, H (NA61/SHINE Collaboration) /NA61
Measurements of

K_{S}^{0}

$K^0_S$ meson production via its

π^{+} π^{-}

$\pi^{+} \pi^{-}$ decay mode in inelastic

p + p

$p+p$ interactions at incident projectile momenta of 31, 40 and 80 GeV/

c

$c$ (

\sqrt{s_{N N}} = 7.7, 8.8

$\sqrt{s_{NN}}=7.7, 8.8$ and

12.3

$12.3$ GeV, respectively) are presented. The data were recorded by the NA61/SHINE spectrometer at the CERN Super Proton Synchrotron [...]
CERN-EP-2024-051.- Geneva : CERN, 2024 - 26. Draft (restricted): PDF; Fulltext: PDF;

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2023-12-23
13:27

Search for a critical point of strongly-interacting matter in central Ar+Sc collisions at 13 $A$ - 75 $A$ GeV/ $c$ beam momentum / Adhikary, H (the NA61/SHINE Collaboration) /NA61
The critical point of strongly interacting matter is searched for at the CERN SPS by the NA61/SHINE experiment in central Ar+Sc collisions at 13

A

$A$ , 19

A

$A$ , 30

A

$A$ , 40

A

$A$ , and 75

A

$A$ GeV/

c

$c$ . The dependence of the second-order scaled factorial moments of proton multiplicity distributions on the number of subdivisions in transverse momentum space is measured. [...]
CERN-EP-2023-305.- Geneva : CERN, 2023 - 38. Draft (restricted): PDF; Fulltext: PDF;

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2023-12-12
17:34

Measurements of higher-order cumulants of multiplicity and net-electric charge distributions in inelastic proton-proton interactions by NA61/SHINE / Adhikary, H (the NA61/SHINE Collaboration)
This paper presents the energy dependence of multiplicity and net-electric charge fluctuations in

p + p

$p+p$ interactions at beam momenta 20, 31, 40, 80 and 158 GeV/

c

$c$ . Results are corrected for the experimental biases and quantified with the use of cumulants and factorial cumulants [...]
CERN-EP-2023-290.- Geneva : CERN, 2025 - 28. Draft (restricted): PDF; Fulltext: PDF;

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2023-12-05
16:58

Evidence of isospin-symmetry violation in high-energy collisions of atomic nuclei / Adhikary, H. (Jan Kochanowski U.) ; Adrich, P. (Warsaw, Inst. Nucl. Studies) ; Allison, K.K. (Colorado U.) ; Amin, N. (KIT, Karlsruhe) ; Andronov, E.V. (Unlisted) ; Arsene, I. -C. (Oslo U.) ; Bajda, M. (Jagiellonian U.) ; Balkova, Y. (Silesia U.) ; Battaglia, D. (U. Notre Dame (main)) ; Bazgir, A. (Jan Kochanowski U.) et al.
Strong interactions preserve an approximate isospin symmetry between up (

u

$u$ ) and down (

d

$d$ ) quarks, part of the more general flavor symmetry. In the case of

K

$K$ meson production, if this isospin symmetry were exact, it would result in equal numbers of charged (

K^{+}

$K^+$ and

K^{-}

$K^-$ ) and neutral (

K^{0}

$K^0$ and

{¯ ¯¯¯ ¯ K}^{0}

$\overline K^{\,0}$ ) mesons in the final state. [...]
arXiv:2312.06572; CERN-EP-2023-283.- Geneva : CERN, 2025-03-23 - 15 p. - Published in : 10.1038/s41467-025-57234-6 Draft (restricted): PDF; Fermilab Library Server: PDF; Fulltext: CERN-EP-2023-283 - PDF; 2312.06572 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server

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2023-08-23
07:17

Measurements of $\pi^\pm$ , $K^\pm$ , $p$ and $\bar{p}$ spectra in $^{40}$ Ar+ $^{45}$ Sc collisions at 13 $A$ to 150 $A$ GeV/ $c$ / NA61/SHINE Collaboration
The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies the onset of deconfinement in strongly interacting matter through a beam energy scan of particle production in collisions of nuclei of varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of

$\pi^\pm$ ,

$K^\pm$ ,

$p$ and

$\bar{p}$ produced in

$^{40}$ Ar+

$^{45}$ Sc collisions at beam momenta of 13

$A$ , 19

$A$ , 30

$A$ , 40

$A$ , 75

$A$ and 150

$A$ GeV/

$c$ . [...]
arXiv:2308.16683; CERN-EP-2023-179; FERMILAB-PUB-23-563-AD.- Geneva : CERN, 2024-04-22 - 66 p. - Published in : Eur. Phys. J. C 84 (2024) 416 Draft (restricted): PDF; Fulltext: CERN-EP-2023-179 - PDF; 2308.16683 - PDF; FERMILAB-PUB-23-563-AD - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server

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2023-05-24
11:33

Measurements of $\pi^+$ , $\pi^-$ , $p$ , $\bar{p}$ , $K^+$ and $K^-$ production in 120 GeV/ $c$ p + C interactions / Adhikary, H (NA61/SHINE Collaboration)
This paper presents multiplicity measurements of charged hadrons produced in 120 GeV/

$c$ proton-carbon interactions. The measurements were made using data collected at the NA61/SHINE experiment during two different data-taking periods, with increased phase space coverage in the second configuration due to the addition of new subdetectors. [...]
CERN-EP-2023-101.- Geneva : CERN, 2023 - 28. Draft (restricted): PDF; Fulltext: PDF;

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2023-05-04
18:32

Search for the critical point of strongly-interacting matter in $^{40}$ Ar + $^{45}$ Sc collisions at 150A Ge V /c using scaled factorial moments of protons / NA61/SHINE Collaboration
The critical point of dense, strongly interacting matter is searched for at the CERN SPS in Ar+Sc collisions at 150

$A$ GeV/

$c$ . The dependence of second-order scaled factorial moments of proton multiplicity distribution on the number of subdivisions of transverse momentum space is measured. [...]
arXiv:2305.07557; CERN-EP-2023-082.- Geneva : CERN, 2023-09-30 - 28 p. - Published in : Eur. Phys. J. C 83 (2023) 881 Draft (restricted): PDF; Fulltext: CERN-EP-2023-082 - PDF; 2305.07557 - PDF; FERMILAB-PUB-23-253-AD - PDF; Fulltext from Publisher: PDF; NA61-version: PDF; External link: Fermilab Library Server

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