Scattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC

doi:10.1103/PhysRevLett.124.092301

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	Scattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC
	Acharya, S ; Adamova, D ; Adhya, SP ; Adler, A ; Adolfsson, J ; Aggarwal, MM ; Rinella, GA ; Agnello, M ; Agrawal, N ; Ahammed, Z
刊名	PHYSICAL REVIEW LETTERS
	2020
卷号	124 期号:9 页码:-
关键词	SIGMA-HYPERON PRODUCTION NUCLEON INTERACTIONS CHIRAL DYNAMICS P INTERACTIONS LAMBDA(1405)
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.124.092301
文献子类	期刊论文
英文摘要	The study of the strength and behavior of the antikaon-nucleon ((K) over bar N) interaction constitutes one of the key focuses of the strangeness sector in low-energy quantum chromodynamics (QCD). In this Letter a unique high-precision measurement of the strong interaction between kaons and protons, close and above the kinematic threshold, is presented. The femtoscopic measurements of the correlation function at low pair-frame relative momentum of (K+ p circle plus K- (p) over bar) and (K- p circle plus K+ (p) over bar) pairs measured in pp collisions at root s = 5, 7, and 13 TeV are reported. A structure observed around a relative momentum of 58 MeV/c in the measured correlation function of (K- p circle plus K+ (p) over bar) with a significance of 4.4 sigma constitutes the first experimental evidence for the opening of the ((K) over bar (0)(n) circle plus K-0 (n) over bar) breaking channel due to the mass difference between charged and neutral kaons. The measured correlation functions have been compared to Julich and Kyoto models in addition to the Coulomb potential. The high-precision data at low relative momenta presented in this work prove femtoscopy to be a powerful complementary tool to scattering experiments and provide new constraints above the (K) over barN threshold for low-energy QCD chiral models.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/33120]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague, Czech Republic (5 2.Gauhati Univ, Dept Phys, Gauhati, India 3.Yerevan Phys Inst Fdn, AI Alikhanyan Natl Sci Lab, Yerevan, Armenia 4.Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine 5.Bose Inst, Dept Phys, Kolkata, India 6.Ctr Astroparticle Phys & Space Sci, Kolkata, India 7.Budker Inst Nucl Phys, Novosibirsk, Russia 8.Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA 9.Cent China Normal Univ, Wuhan, Peoples R China 10.IN2P3, Ctr Calcul, Lyon, France
推荐引用方式 GB/T 7714	Acharya, S,Adamova, D,Adhya, SP,et al. Scattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC[J]. PHYSICAL REVIEW LETTERS,2020,124(9):-.
APA	Acharya, S.,Adamova, D.,Adhya, SP.,Adler, A.,Adolfsson, J.,...&Zurlo, N.(2020).Scattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC.PHYSICAL REVIEW LETTERS,124(9),-.
MLA	Acharya, S,et al."Scattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC".PHYSICAL REVIEW LETTERS 124.9(2020):-.