CERN Accelerating science

NA61 Papers

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2020-08-09
10:15
Measurements of $\pi^-$ production in $^7$Be+$^9$Be collisions at beam momenta from 19$A$ to 150$A$ GeV/$c$ in the NA61/SHINE experiment at the CERN SPS / Acharya, A (NA61/SHINE Collaboration)
The NA61/SHINE collaboration studies at the CERN Super Proton Synchrotron (SPS) the onset of deconfinement in hadronic matter by the measurement of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra and mean multiplicities of $\pi^{-}$ mesons produced in the 5% most $central$ $^7$Be+$^9$Be collisions at beam momenta of 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$ obtained by the so-called $h^-$ method which does not require any particle identification. [...]
CERN-EP-2020-150.- Geneva : CERN, 2020 - 31. Draft (restricted): PDF; Fulltext: PDF;

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2020-06-01
12:18
Two-particle correlations in azimuthal angle and pseudorapidity in central $^7$Be+$^9$Be collisions at the CERN Super Proton Synchrotron / Aduszkiewicz, A (NA61/SHINE Collaboration) /NA61
A measurement of charged hadron pair correlations in two-dimensional $\Delta\eta \Delta\phi$ space is presented. The analysis is based on total 30 million central Be+Be collisions observed in the NA61/SHINE detector at the CERN SPS for incident beam momenta of 19$A$, 30$A$, 40$A$, 75$A$, and 150$A$ GeV/$c$. [...]
CERN-EP-2020-103.- Geneva : CERN, 2020 - 26. Draft (restricted): PDF; Fulltext: PDF;

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2020-05-29
17:34
Measurements of $\Xi^-$ and $\overline{\Xi}^+$ production in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experiment / Aduszkiewicz, A (NA61/SHINE Collaboration)
The production of $\Xi(1321)^{-}$ and $\overline{\Xi}(1321)^{+}$ hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 GeV/$c$. Double differential distributions in rapidity and transverse momentum are obtained from a sample of 33M inelastic events. [...]
CERN-EP-2020-102.- Geneva : CERN, 2020 - 21. Draft (restricted): PDF; Fulltext: PDF;

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2020-01-08
18:20
$K^{*}(892)^0$ meson production in inelastic p+p interactions at 158 GeV/$c$ beam momentum measured by NA61/SHINE at the CERN SPS / Aduszkieiwicz, A (the NA61/SHINE Collaboration) /NA61
$K^{*}(892)^0$ resonance production via its $K^{+}\pi^{-}$ decay mode in inelastic p+p collisions at beam momentum 158 GeV/$c$ ($\sqrt{s_{NN}}=17.3$ GeV) is presented. The data were recorded by the NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron [...]
CERN-EP-2020-002.- Geneva : CERN, 2020 - 36. Draft (restricted): PDF; Fulltext: PDF;

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2019-12-16
13:47
Search for an exotic S=-2, Q=-2 baryon resonance in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3~GeV / Aduszkieiwicz, A (NA61/SHINE Collaboration) /NA61
Pentaquark states have been extensively investigated theoretically in the context of the constituent quark model. In this paper experimental searches in the $\Xi^-$$\pi^-$, $\Xi^-$$\pi^+$, $\bar{\Xi}^+$$\pi^-$ and $\bar{\Xi}^+$$\pi^+$ invariant mass spectra in proton-proton interactions at $\sqrt{s}$=17.3~GeV are presented [...]
CERN-EP-2019-283.- Geneva : CERN, 2019 - 9. Draft (restricted): PDF; Fulltext: PDF;

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2019-09-12
12:25
Measurements of hadron production in $\pi^{+}$ + C and $\pi^{+}$ + Be interactions at 60 GeV/$c$ / NA61/SHINE Collaboration
Precise knowledge of hadron production rates in the generation of neutrino beams is necessary for accelerator-based neutrino experiments to achieve their physics goals. NA61/SHINE, a large-acceptance hadron spectrometer, has recorded hadron+nucleus interactions relevant to ongoing and future long-baseline neutrino experiments at Fermi National Accelerator Laboratory. [...]
arXiv:1909.06294; CERN-EP-2019-198.- 2019-12-11 - 28 p. - Published in : Phys. Rev. D 100 (2019) 112004 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: 1909.06294 - PDF; fermilab-pub-19-657-ad-nd-scd - PDF; CERN-EP-2019-198 - PDF;

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2019-09-06
17:12
Measurements of production and inelastic cross sections for $\mbox{p}+\mbox{C}$, $\mbox{p}+\mbox{Be}$, and $\mbox{p}+\mbox{Al}$ at 60 GeV/$c$ and $\mbox{p}+\mbox{C}$ and $\mbox{p}+\mbox{Be}$ at 120 GeV/$c$ / NA61/SHINE Collaboration
This paper presents measurements of production cross sections and inelastic cross sections for the following reactions: 60~GeV/$c$ protons with C, Be, Al targets and 120~GeV/$c$ protons with C and Be targets. The analysis was performed using the NA61/SHINE spectrometer at the CERN SPS. [...]
arXiv:1909.03351; CERN-EP-2019-193.- 2019-12-03 - 15 p. - Published in : Phys. Rev. D 100 (2019) 112001 Article from SCOAP3: PDF; CERN-EP-2019-193: PDF; Draft (restricted): PDF; Fulltext: 1909.03351 - PDF; fermilab-pub-19-658-ad-nd-scd - PDF;

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2019-07-30
12:02
Measurement of $\phi$ meson production in p+p interactions at 40, 80 and 158 GeV/$c$ with the NA61/SHINE spectrometer at the CERN SPS / Aduszkiewicz, A /NA61/SHINE Collaboration
Results on $\phi$ meson production in inelastic p+p collisions at CERN SPS energies are presented. They are derived from data collected by the NA61/SHINE fixed target experiment, by means of invariant mass spectra fits in the $\phi$ to $K^+ K^-$ decay channel. [...]
CERN-EP-2019-165.- Geneva : CERN, 2019 - 26. Draft (restricted): PDF; Fulltext: PDF;

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2019-04-25
16:19
Proton-proton interactions and onset of deconfinement / Aduszkiewicz, A (NA61/SHINE Collaboration)
The NA61/SHINE experiment at the CERN SPS is performing a unique study of the phase diagram of strongly interacting matter by varying collision energy and nuclear mass number of colliding nuclei. In central Pb+Pb collisions the NA49 experiment found structures in the energy dependence of several observables in the CERN SPS energy range that had been predicted for the transition to a deconfined phase. [...]
CERN-EP-2019-086.- Geneva : CERN, 2019 - 12. Draft (restricted): PDF; Fulltext: PDF;

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2018-08-10
12:00
Measurements of $\pi^\pm$, $K^\pm$ and proton yields from the surface of the T2K replica target for incoming 31 GeV/$c$ protons with the NA61/SHINE spectrometer at the CERN SPS / NA61/SHINE Collaboration
Measurements of the $\pi^{\pm}$, $K^{\pm}$, and proton double differential yields emitted from the surface of the 90-cm-long carbon target (T2K replica) were performed for the incoming 31 GeV/c protons with the NA61/SHINE spectrometer at the CERN SPS using data collected during 2010 run. The double differential $\pi^{\pm}$ yields were measured with increased precision compared to the previously published NA61/SHINE results, while the $K^{\pm}$ and proton yields were obtained for the first time. [...]
arXiv:1808.04927; CERN-EP-2018-222.- Geneva : CERN, 2019-01-31 - 43 p. - Published in : Eur. Phys. J. C 79 (2019) 100 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: 1808.04927 - PDF; fermilab-pub-18-441-ad-cd-nd - PDF; CERN-EP-2018-222 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server (fulltext available)

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