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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; 25c3d3546cdcb3165921ceaf0b751cdb - PDF; External link: Fermilab Library Server

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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$/c$ proton-carbon interactions from a dataset taken by the NA61/SHINE experiment in 2017. Particle identification via \dedx was performed for the charged hadrons $\pi^\pm$, $K^\pm$, and $p / \bar{p}$; the neutral hadrons $K^0_S$, $\Lambda$, and $\bar{\Lambda}$ 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. / NA61/SHINE Collaboration
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.- Geneva : CERN, 2025-05-07 - 21 p. - Published in : Phys. Rev. C 111 (2025) 054606 Draft (restricted): PDF; Fulltext: PDF; Fulltext from Publisher: PDF; preprint: 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 $K^0_S$ meson production via its $\pi^{+} \pi^{-}$ decay mode in inelastic $p+p$ interactions at incident projectile momenta of 31, 40 and 80 GeV/$c$ ($\sqrt{s_{NN}}=7.7, 8.8$ and $12.3$ 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$A$, 19$A$, 30$A$, 40$A$, and 75$A$ GeV/$c$. 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 $p+p$ interactions at beam momenta 20, 31, 40, 80 and 158 GeV/$c$. 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 / NA61/SHINE Collaboration
Strong interactions preserve an approximate isospin symmetry between up ($u$) and down ($d$) quarks, part of the more general flavor symmetry. In the case of $K$ meson production, if this isospin symmetry were exact, it would result in equal numbers of charged ($K^+$ and $K^-$) and neutral ($K^0$ and $\overline K^{\,0}$) mesons in the final state. [...]
arXiv:2312.06572; CERN-EP-2023-283.- Geneva : CERN, 2025-03-23 - 15 p. - Published in : Nature Commun. 16 (2025) 2849 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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