EXPERIMENTAL STUDIES OF ANTIKAON MEDIATED BOUND NUCLEAR SYSTEMS

Recent experimental studies of the synthesis and properties of deeply bound antikaon mediated nuclear systems are reviewed. Following a brief introduction in the basic properties of the antikaon–nucleon interaction which may lead to cold and dense antikaonic nuclear systems, we review the results of very first experiments which give indications of the existence of such exotic clusters of matter. Then ongoing efforts to substantiate the early findings are presented and future experimental approaches which will allow a very detailed study of the decay modes, the sizes and density distributions of these kaonic nuclear clusters are discussed including their relevance for possible phase transitions in cold dense matter.

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Phase transitions and behavior of kaons in hot and dense matter

10.1063/1.1920989 ◽

2005 ◽

Author(s):

C. A. de Sousa

Keyword(s):

Phase Transitions ◽

Dense Matter ◽

And Behavior

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Experimental Studies of Magnetic Field Induced Phase Transitions

Low-Dimensional Conductors and Superconductors - NATO ASI Series ◽

10.1007/978-1-4899-3611-0_16 ◽

1987 ◽

pp. 199-209 ◽

Cited By ~ 2

Author(s):

Michel Ribault

Keyword(s):

Magnetic Field ◽

Phase Transitions ◽

Experimental Studies

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Experimental Studies of Phase Transitions and Pattern Formation in Two Dimensions

Springer Proceedings in Physics - Dynamics and Patterns in Complex Fluids ◽

10.1007/978-3-642-76008-2_27 ◽

1990 ◽

pp. 130-140 ◽

Cited By ~ 2

Author(s):

C. M. Knobler ◽

K. Stine ◽

B. G. Moore

Keyword(s):

Phase Transitions ◽

Pattern Formation ◽

Experimental Studies ◽

Two Dimensions

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AMADEUS Experiment: Studies on Antikaon Interactions with Nucleons and Nuclei

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194518600716 ◽

2018 ◽

Vol 46 ◽

pp. 1860071

Author(s):

J. Marton ◽

K. Piscicchia

Keyword(s):

Bound States ◽

Experimental Studies ◽

Drift Chamber ◽

Kaonic Hydrogen ◽

Nucleon Interaction ◽

S Wave ◽

Data Set ◽

Electron Positron ◽

Low Energies ◽

Kloe Collaboration

The understanding of the low-energy strong interaction involving strangeness is a challenging topic due to resonances and predicted kaonic nuclear bound states. The K- nucleon interaction is strongly attractive at low energies verified in kaonic hydrogen studied in the SIDDHARTA experiment at the DA[Formula: see text]NE electron-positron collider of LNF-INFN (Frascati/Italy). Hyperon resonances like the elusive [Formula: see text] in the s-wave impose questions about its nature. According to theoretical studies it can be described as a dynamically generated resonance with two poles or a quasi-bound [Formula: see text]N state, which could lead to kaonic nuclear bound states (e.g. K-pp). An insight in many open facets of the antikaon interactions can be provided by the AMADEUS experiment at DA[Formula: see text]NE based on the analysis of the data collected in 2004/2005 by the KLOE collaboration, and of the dedicated data set collected in 2012 by AMADEUS in collaboration with KLOE. As a first step data from antikaon-induced reactions in the drift chamber of KLOE were analyzed and yielded new results on antikaon absorption on nuclei. Recent results of the experimental studies and an outlook to the future possibilities within AMADEUS are presented.

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Duplicated, Twisted, and in the Wrong Place

Developmental Biology and Larval Ecology ◽

10.1093/oso/9780190648954.003.0004 ◽

2020 ◽

pp. 113-142

Author(s):

Gerhard Scholtz

Keyword(s):

Experimental Studies ◽

Conjoined Twins ◽

General Level ◽

Toxic Substances ◽

Body Parts ◽

Expression Studies ◽

Normal Expression ◽

Experimental Approaches ◽

Gene Expression Studies ◽

Boundary Model

The study of malformations is an important tool to understand mechanisms and causes of development and regeneration. Moreover, malformations indicate the morphological potential of living beings. Hence, a deeper understanding of how, to what degree, and why organismal structures can deviate from their normal expression is interesting in an evolutionary and ecological context. Like other arthropods, and animals in general, crustaceans show a certain variety of naturally occurring malformations of different body parts. This review is restricted to those that affect the axes of appendages and the trunk. Hence, the various patterns of axis distortion are described and classified. At the general level, malformations concerning limbs are discriminated from those that alter other body outgrowths and those that affect the pattern of the trunk. Among malformation of limbs and other body appendages, misplaced structures, fissions, and fusions are classified. Conjoined twins and distorted body segments are the main features of trunk malformations. The putative causes of malformations are discussed with respect to comparative and experimental approaches. Furthermore, gene expression studies, theories, and models, such as Hans Meinhardt’s Boundary Model, are applied to explain malformations at the level of pattern formation. Apparently, many malformations are not genetic mutations and thus not inheritable, but are instead the result of distortions during early development and regeneration artifacts based on injuries, high temperature, and toxic substances. Compared with other arthropod groups, there are very few experimental studies addressing malformations in crustaceans. Hence, the causes for specific patterns of deformities remain largely obscure.

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Equation of state constraints for the cold dense matter inside neutron stars using the cooling tail method

Astronomy and Astrophysics ◽

10.1051/0004-6361/201527416 ◽

2016 ◽

Vol 591 ◽

pp. A25 ◽

Cited By ~ 71

Author(s):

J. Nättilä ◽

A. W. Steiner ◽

J. J. E. Kajava ◽

V. F. Suleimanov ◽

J. Poutanen

Keyword(s):

Equation Of State ◽

Neutron Stars ◽

State Constraints ◽

Dense Matter ◽

Cold Dense Matter

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AN EFFECTIVE THEORY FOR NUCLEAR MATTER WITH GENUINE MANY-BODY FORCES

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194512008422 ◽

2012 ◽

Vol 18 ◽

pp. 182-190 ◽

Cited By ~ 2

Author(s):

CÉSAR A. Z. VASCONCELLOS ◽

JORGE HORVATH ◽

DIMITER HADJIMICHEF ◽

ROSANA O. GOMES

Keyword(s):

Nuclear Matter ◽

Dense Matter ◽

New Physics ◽

Theoretical Research ◽

Effective Theory ◽

Many Body ◽

Conceptual Issue ◽

Body Forces ◽

Nuclear Systems ◽

Space Dynamics

Nuclear science has developed many excellent descriptions that embody various properties of the nucleus, and nuclear matter at low, medium and high densities. However, a full microscopic understanding of nuclear systems is still lacking. The aim of our theoretical research group is to shed some light on such challenges and particularly on open questions facing the high density nuclear many-body problem. Here we focus our attention on the conceptual issue of naturalness and its role in shaping the baryon-meson phase space dynamics in the description of the equation of state (EoS) of nuclear matter. In particular, in order to stimulate possible new directions of research, we discuss relevant aspects of a recently developed relativistic effective theory for nuclear matter with natural parametric couplings and genuine many-body forces. Among other topics we discuss in this work the connection of this theory with other known effective QHD models of the literature and its potentiality in describing a new physics for dense matter.

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DENSITY-DEPENDENT CLUSTER MODEL OF α DECAY

International Journal of Modern Physics B ◽

10.1142/s0217979205030980 ◽

2005 ◽

Vol 19 (15n17) ◽

pp. 2365-2368 ◽

Cited By ~ 1

Author(s):

CHANG XU ◽

ZHONGZHOU REN

Keyword(s):

Nuclear Physics ◽

Cluster Model ◽

Daughter Nucleus ◽

Nucleon Nucleon ◽

Nucleon Interaction ◽

Α Decay ◽

Density Dependent ◽

Density Distributions ◽

Nucleon Nucleon Interaction ◽

Double Folding

A new cluster model of α decay is proposed where the effective potential between α-cluster and daughter nucleus is obtained from the double folding integral of the renormalized M3Y nucleon-nucleon interaction and of the density distributions of α particle and daughter nucleus. Without introducing any extra adjustment on the potential, the new model (named as the density-dependent cluster model) can successfully reproduce the experimental half-lives of α decay within a factor of 3. The model also works well for new superheavy elements which are the current interests of nuclear physics and chemistry.

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Proton channels and renal hypertensive injury: a key piece of the Dahl salt-sensitive rat puzzle?

AJP Regulatory Integrative and Comparative Physiology ◽

10.1152/ajpregu.00115.2015 ◽

2016 ◽

Vol 310 (8) ◽

pp. R679-R690 ◽

Cited By ~ 6

Author(s):

Paul M. O'Connor ◽

Avirup Guha ◽

Carly A. Stilphen ◽

Jingping Sun ◽

Chunhua Jin

Keyword(s):

Experimental Studies ◽

Proton Channel ◽

Thick Ascending Limb ◽

Phagocytic Cells ◽

Proton Channels ◽

Voltage Gated ◽

Medullary Thick Ascending Limb ◽

Current Controversy ◽

Experimental Approaches ◽

Species Production

Hv1 is a voltage-gated proton channel highly expressed in phagocytic cells, where it participates in the NADPH oxidase-dependent respiratory burst. We have recently identified Hv1 as a novel renal channel, expressed in the renal medullary thick ascending limb that appears to importantly contribute to the pathogenesis of renal hypertensive injury in the Dahl salt-sensitive rat model. The purpose of this review is to describe the experimental approaches that we have undertaken to identify the source of excess reactive oxygen species production in the renal outer medulla of Dahl salt-sensitive rats and the resulting evidence that the voltage-gated proton channel Hv1 mediates augmented superoxide production and contributes to renal medullary oxidative stress and renal injury. In addition, we will attempt to point out areas of current controversy, as well as propose areas in which further experimental studies are likely to move the field forward. The content of the following review was presented as part of the Water and Electrolyte Homeostasis Section New Investigator Award talk at Experimental Biology 2014.

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