Observation of Large-Scale Anisotropy in Very-High-Energy Cosmic Ray Protons with LHAASO-KM2A

Simple item page
dc.contributor.authorCao Z.
dc.contributor.authorAharonian F.
dc.contributor.authorBai Y.X.
dc.contributor.authorBao Y.W.
dc.contributor.authorBastieri D.
dc.contributor.authorBi X.J.
dc.contributor.authorBi Y.J.
dc.contributor.authorBian W.
dc.contributor.authorBukevich A.V.
dc.contributor.authorCai C.M.
dc.contributor.authorCao W.Y.
dc.contributor.authorCao Z.
dc.contributor.authorChang J.
dc.contributor.authorChang J.F.
dc.contributor.authorChen A.M.
dc.contributor.authorChen E.S.
dc.contributor.authorChen G.H.
dc.contributor.authorChen H.X.
dc.contributor.authorChen L.
dc.contributor.authorChen L.
dc.contributor.authorChen M.J.
dc.contributor.authorChen M.L.
dc.contributor.authorChen Q.H.
dc.contributor.authorChen S.
dc.contributor.authorChen S.H.
dc.contributor.authorChen S.Z.
dc.contributor.authorChen T.L.
dc.contributor.authorChen X.B.
dc.contributor.authorChen X.J.
dc.contributor.authorChen Y.
dc.contributor.authorCheng N.
dc.contributor.authorCheng Y.D.
dc.contributor.authorChu M.C.
dc.contributor.authorCui M.Y.
dc.contributor.authorCui S.W.
dc.contributor.authorCui X.H.
dc.contributor.authorCui Y.D.
dc.contributor.authorDai B.Z.
dc.contributor.authorDai H.L.
dc.contributor.authorDai Z.G.
dc.contributor.authorDanzengluobu
dc.contributor.authorDiao Y.X.
dc.contributor.authorDong X.Q.
dc.contributor.authorDuan K.K.
dc.contributor.authorFan J.H.
dc.contributor.authorFan Y.Z.
dc.contributor.authorFang J.
dc.contributor.authorFang J.H.
dc.contributor.authorFang K.
dc.contributor.authorFeng C.F.
dc.contributor.authorFeng H.
dc.contributor.authorFeng L.
dc.contributor.authorFeng S.H.
dc.contributor.authorFeng X.T.
dc.contributor.authorFeng Y.
dc.contributor.authorFeng Y.L.
dc.contributor.authorGabici S.
dc.contributor.authorGao B.
dc.contributor.authorGao C.D.
dc.contributor.authorGao Q.
dc.contributor.authorGao W.
dc.contributor.authorGao W.K.
dc.contributor.authorGe M.M.
dc.contributor.authorGe T.T.
dc.contributor.authorGeng L.S.
dc.contributor.authorGiacinti G.
dc.contributor.authorGong G.H.
dc.contributor.authorGou Q.B.
dc.contributor.authorGu M.H.
dc.contributor.authorGuo F.L.
dc.contributor.authorGuo J.
dc.contributor.authorGuo X.L.
dc.contributor.authorGuo Y.Q.
dc.contributor.authorGuo Y.Y.
dc.contributor.authorHan Y.A.
dc.contributor.authorHannuksela O.A.
dc.contributor.authorHasan M.
dc.contributor.authorHe H.H.
dc.contributor.authorHe H.N.
dc.contributor.authorHe J.Y.
dc.contributor.authorHe X.Y.
dc.contributor.authorHe Y.
dc.contributor.authorHernández-Cadena S.
dc.contributor.authorHou B.W.
dc.contributor.authorHou C.
dc.contributor.authorHou X.
dc.contributor.authorHu H.B.
dc.contributor.authorHu S.C.
dc.contributor.authorHuang C.
dc.contributor.authorHuang D.H.
dc.contributor.authorHuang J.J.
dc.contributor.authorHuang T.Q.
dc.contributor.authorHuang W.J.
dc.contributor.authorHuang X.T.
dc.contributor.authorHuang X.Y.
dc.contributor.authorHuang Y.
dc.contributor.authorHuang Y.Y.
dc.contributor.authorJi X.L.
dc.contributor.authorJia H.Y.
dc.contributor.authorJia K.
dc.contributor.correspondenceCao Z.
dc.contributor.otherMahidol University
dc.date.accessioned2026-02-08T18:14:54Z
dc.date.available2026-02-08T18:14:54Z
dc.date.issued2025-12-30
dc.description.abstractWe present a measurement of large-scale anisotropies in high-purity protons utilizing the Large High Altitude Air Shower Observatory (LHAASO). We analyzed data collected over three years from the kilometer-squared array (KM2A). Proton data was selected using a cut based on the ratio of muonic to electromagnetic components, akin to the gamma/background discrimination method used in KM2A. The proton sample achieved a purity of up to 80%, with reconstructed energies ranging from 10 TeV to 220 TeV. We conducted an analysis of the energy evolution of dipole anisotropy in protons within this energy range and identified that the turnover energy in amplitude and phase occurs at a lower energy compared to samples of heavier nuclei.
dc.identifier.citationProceedings of Science Vol.501 (2025)
dc.identifier.doi10.22323/1.501.0286
dc.identifier.eissn18248039
dc.identifier.scopus2-s2.0-105029023579
dc.identifier.urihttps://repository.li.mahidol.ac.th/handle/123456789/114884
dc.rights.holderSCOPUS
dc.subjectMultidisciplinary
dc.titleObservation of Large-Scale Anisotropy in Very-High-Energy Cosmic Ray Protons with LHAASO-KM2A
dc.typeConference Paper
mu.datasource.scopushttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105029023579&origin=inward
oaire.citation.titleProceedings of Science
oaire.citation.volume501
oairecerif.author.affiliationUniversity of Chinese Academy of Sciences
oairecerif.author.affiliationTsinghua University
oairecerif.author.affiliationShanghai Jiao Tong University
oairecerif.author.affiliationSun Yat-Sen University
oairecerif.author.affiliationUniversity of Science and Technology of China
oairecerif.author.affiliationUniversité Paris Cité
oairecerif.author.affiliationShandong University
oairecerif.author.affiliationNanjing University
oairecerif.author.affiliationChinese University of Hong Kong
oairecerif.author.affiliationZhengzhou University
oairecerif.author.affiliationSouthwest Jiaotong University
oairecerif.author.affiliationYunnan University
oairecerif.author.affiliationGuangzhou University
oairecerif.author.affiliationInstitute of High Energy Physics, Chinese Academy of Sciences
oairecerif.author.affiliationNational Astronomical Observatories Chinese Academy of Sciences
oairecerif.author.affiliationMax-Planck-Institut für Kernphysik
oairecerif.author.affiliationHebei Normal University
oairecerif.author.affiliationInstitute for Nuclear Research of the Russian Academy of Sciences
oairecerif.author.affiliationYerevan State University
oairecerif.author.affiliationChina Center of Advanced Science and Technology World Laboratory
oairecerif.author.affiliationZhejiang Lab
oairecerif.author.affiliationPurple Mountain Observatory Chinese Academy of Sciences
oairecerif.author.affiliationShanghai Astronomical Observatory Chinese Academy of Sciences
oairecerif.author.affiliationYunnan Observatories
oairecerif.author.affiliationTibet University
oairecerif.author.affiliationState Key Laboratory of Particle Detection & Electronics
oairecerif.author.affiliationTIANFU Cosmic Ray Research Center
oairecerif.author.affiliationSchool of Physics

Files

Collections

Scopus 2025