{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.98673.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1811793"}},{"@id":"https://doi.org/10.1140/epjc/s10052-020-08514-6","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"NA61/SHINE Collaboration"},"creator":{"@type":"Organization","name":"NA61/SHINE Collaboration"},"datePublished":"2021","description":"CERN-SPS. The NA61/SHINE collaboration studies at the CERN Super Proton Synchrotron (SPS) the onset\nof deconfinement in hadronic matter by the measurement of particle production in collisions of nuclei\nwith various sizes at a set of energies covering the SPS energy range. This paper presents results\non inclusive double-differential spectra and mean multiplicities of PI- mesons produced in the 5% most central\n7Be+9Be collisions at beam momenta of 19A, 30A,\n40A, 75A and 150A GeV/c obtained by the so-called h- method\nwhich does not require any particle identification.\n\nBe+Be collisions can be characterized by the energy detected in the region populated by projectile spectators. Low values of this forward energy are referred to\ncentral collision and a selection of collisions based on the \nforward energy is called a centrality selection.\nAlthough for Be+Be collisions the forward energy is not tightly correlated with \nthe impact parameter of the collision, the terms central and centrality are adopted following the convention widely used in heavy-ion physics.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.98673.v1/t1","@type":"Dataset","description":"Transverse momentum spectra of PI\u2212 in rapidity slices produced in the 5% most central Be+Be collisions at 19A GeV/c.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.98673.v1/t2","@type":"Dataset","description":"Transverse momentum spectra of PI\u2212 in rapidity slices produced in the 5% most central Be+Be collisions at 30A GeV/c.","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.98673.v1/t3","@type":"Dataset","description":"Transverse momentum spectra of PI\u2212 in rapidity slices produced in the 5% most central Be+Be collisions at 40A GeV/c.","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.98673.v1/t4","@type":"Dataset","description":"Transverse momentum spectra of PI\u2212 in rapidity slices produced in the 5% most central Be+Be collisions at 75A GeV/c.","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.98673.v1/t5","@type":"Dataset","description":"Transverse momentum spectra of PI\u2212 in rapidity slices produced in the 5% most central Be+Be collisions at 150A GeV/c.","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.98673.v1/t6","@type":"Dataset","description":"Transverse mass spectra 1/mT d2n/(dydmT) of negatively charged pions produced in central Be+Be collisions at the SPS energies.","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.98673.v1/t7","@type":"Dataset","description":"Rapidity spectra of PI\u2212 produced in the 5% most central Be+Be collisions at the SPS energies.","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.98673.v1/t8","@type":"Dataset","description":"Collision energy dependence of the ratio of the width sigma_y of the rapidity distribution to the beam rapidity y_beam for...","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.98673.v1/t9","@type":"Dataset","description":"Energy dependence of the mean transverse mass of PI- measured at mid-rapidity in central Be+Be collisions.","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.98673.v1/t10","@type":"Dataset","description":"The \"kink\" plot showing the ratio of pion multiplicity  to number of wounded nucleons  versus the Fermi energy...","name":"Table 10"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1811793?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/98673"}],"inLanguage":"en","name":"Measurements of $\\pi^-$ production in $^7$Be+$^9$Be collisions at beam momenta from 19$A$ to 15$A$GeV/$c$ in the NA61/SHINE experiment at the CERN SPS","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1811793?version=1","version":1}