This book shows how the study of multi-hadron production phenomena in the years after the founding of CERN culminated in Hagedorn's pioneering idea of limiting temperature, leading on to the discovery of the quark-gluon plasma -- announced, in February 2000 at CERN. Following the foreword by Herwig Schopper -- the Director General (1981-1988) of CERN at the key historical juncture -- the first part is a tribute to Rolf Hagedorn (1919-2003) and includes contributions by contemporary friends and colleagues, and those (...) who were most touched by Hagedorn: Tamás Biró, Igor Dremin, Torleif Ericson, Marek Gaździcki, Mark Gorenstein, Hans Gutbrod, Maurice Jacob, István Montvay, Berndt Müller, Grazyna Odyniec, Emanuele Quercigh, Krzysztof Redlich, Helmut Satz, Luigi Sertorio, Ludwik Turko, and Gabriele Veneziano. The second and third parts retrace 20 years of developments that after discovery of the Hagedorn temperature in 1964 led to its recognition as the melting point of hadrons into boiling quarks, and to the rise of the experimental relativistic heavy ion collision program. These parts contain previously unpublished material authored by Hagedorn and Rafelski: conference retrospectives, research notes, workshop reports, in some instances abbreviated to avoid duplication of material, and rounded off with the editor's explanatory notes. About the editor: Johann Rafelski is a theoretical physicist working at The University of Arizona in Tucson, USA. Born in 1950 in Krakow, Poland, he received his Ph.D. with Walter Greiner in Frankfurt, Germany in 1973. Rafelski arrived at CERN in 1977, where in a joint effort with Hagedorn he contributed greatly to the establishment of the relativistic heavy ion collision, and quark-gluon plasma research fields. Moving on, with stops in Frankfurt and Cape Town, to Arizona, he invented and developed the strangeness quark flavor as the signature of quark-gluon plasma. (shrink)

I review at a non-technical level the use of the gauge-string duality to study aspects of heavy ion collisions, with special emphasis on the trailing string calculation of heavy quark energy loss. I include some brief speculations on how variants of the trailing string construction could provide a toy model of black hole formation and evaporation. This essay is an invited contribution to “Forty Years of String Theory” and is aimed at philosophers and historians of science as well (...) as physicists. (shrink)

Relativistic mean field theory with mesons σ, ω, π and ρ mediating interactions and nucleons as basic fermions has been very successful in describing nuclear matter and finite nuclei. However, in heavy-ion collisions, where the c. m. energy of two colliding nucleons will be in the hundreds of GeV region, nucleons are not expected to behave as point-like particles. Analyses of elastic pp and ¯pp scattering data in the relevant c. m. energy range show that the nucleon is a (...) composite object—a topological soliton or Skyrmion embedded in a condensed quark-antiquark ground state. Against this backdrop, we formulate an effective field theory model of nuclear matter based on the gauged linear σ-model where quarks are the basic fermions, but the mesons still mediate the interactions. The model describes the nucleon as a Skyrmion and produces a q¯q ground state analogous to a superconducting ground state. Quarks are quasi-particles in this ground state. When the temperature exceeds a critical value, the scalar field in the ground state vanishes, quarks become massless, and a chiral phase transition occurs leading to chiral symmetry restoration. We explore the possibility of a first order phase transition in this model by introducing suitable self-interactions of the scalar field. Internal structures of the Skyrmions are ignored, and they are treated as point-like fermions. (shrink)

This book focuses on the study of heavy quarkonium production at high-energy colliders as a useful tool to explain both the perturbative and non-perturbative aspects of quantum choromodynamics. It provides the first comprehensive comparison between the theory and recent experiments and clarifies some longstanding puzzles in the heavy quarkonium production mechanism. In addition, it describes in detail a new framework for implementing precise computations of the physical observables in quantum field theories based on recently developed techniques. It can (...) be used to simulate the complicated collider environment of the Large Hadron Collider at the Conseil Européen pour la Recherche Nucléaire (CERN). Its accomplishment implies that the Monte Carlo simulations for high-energy physics experiments have reached the limits of precision. It offers readers a wealth of valuable information on the relevant techniques. (shrink)

Metallothioneins (MTs) are ubiquitous proteins with the capacity to bind heavy metal ions (mainly Cd, Zn or Cu), and they have been found in animals, plants, eukaryotic and prokaryotic micro‐organisms. We have carried out a comparative analysis of ciliate MTs (Tetrahymena species) to well‐known MTs from other organisms, discussing their exclusive features, such as the presence of aromatic amino acid residues and almost exclusive cysteine clusters (CCC) present in cadmium‐binding metallothioneins (CdMTs), higher heavy metal‐MT stoichiometry values, and a (...) strictly conserved modular–submodular structure. Based on this last feature and an extensive gene duplication, we propose a possible model for the evolutionary history of T. thermophila MTs. We also suggest possible functions for these MTs from consideration of their differential gene expressions and discuss the potential use of these proteins and/or their gene promoters for designing molecular or whole‐cell biosensors for a fast detection of heavy metals in diverse polluted ecosystems. (shrink)

The story of superheavy elements - those at the very end of the periodic table - is not well known outside the community of heavy-ion physicists and nuclear chemists. But it is a most interesting story which deserves to be known also to historians, philosophers, and sociologists of science and indeed to the general public. This is what the present work aims at. It tells the story or rather parts of the story, of how physicists and chemists created elements (...) heavier than uranium or searched for them in nature. And it does so with an emphasis on the frequent discovery and naming disputes concerning the synthesis of very heavy elements. Moreover, it calls attention to the criteria which scientists have adopted for what it means to have discovered a new element. In this branch of modern science it may be more appropriate to speak of creation instead of discovery. The work will be of interest to scientists as well as to scholars studying modern science from a meta-perspective. (shrink)

The mathematical framework of Relativistic Schrödinger Theory (RST) is generalized in order to include the self-interactions of the particles as an integral part of the theory (i.e. in a non-perturbative way). The extended theory admits a Lagrangean formulation where the Noether theorems confirm the existence of the conservation laws for charge and energy–momentum which were originally deduced directly from the dynamical equations. The generalized RST dynamics is applied to the case of some heavy helium-like ions, ranging from germanium (Z=32) (...) to bismuth (Z=83), in order to compute the interaction energy of the two electrons in their ground-state. The present inclusion of the electron self-energies into RST yields a better agreement of the theoretical predictions with the experimental data. (shrink)

The two center time dependent Dirac equation, for an electron in the external field of two colliding ultrarelativistic heavy ions is considered. In the ultrarelativistic limit, the ions are practically moving at the speed of light and the electromagnetic fields of the ions are confined to the light fronts by the extreme Lorentz contraction and by the choice of gauge, designed to remove the long-range Coulomb effects. An exact solution to the ultrarelativistic limit of the two-center Dirac equation is (...) found by using light-front variables and a light-fronts representation. Previously unexplained experimental results obtained at CERN's SPS are explained in this way and predictions are made as to where one should look, in momentum space, and in space-time, if one wants to study and observe non-perturbative electromagnetic pair-production effects in extremely relativistic heavy-ion collisions. (shrink)

I do not usually write about my own scientific work, but I’m going to make an exception for this column and tell you about a physics puzzle and how we solved it. Back in 1991, almost a decade before the facility actually went into operation, I wrote a column ("RHIC: Big Bangs in the Lab", Analog, June 1991) about the Relativistic Heavy Ion Collider (RHIC), a large accelerator project that was then in the early stages of construction. The column (...) was written a few months after I joined what is now called the STAR Collaboration, a group of physicists (now numbering 577) who ultimately built a large "time-projection chamber" detector for tracking and making measurements on the charged particles produced in RHIC collisions. (shrink)

This article employs empirical history and the philosophy of science to study cultural convergences and divergences in international collaborations in high energy physics. We examine two cases: (1) E-36, an experiment on small angle proton-proton scattering conducted during the Cold War at the National Accelerator Laboratory (NAL) in the USA by Soviet and US scientists and (2) an ongoing collaborative experiment, NICA, at the Joint Institute for Nuclear Research (JINR, Dubna), which is a project devoted to heavy-ion physics. The (...) JINR, particularly its Laboratory of High Energy Physics (formerly the “Laboratory of High Energies”) is the main mediating actor between these two cases (i.e., E-36 and NICA), as the majority of Soviet participants in E-36 were representatives of the Institute. Using empirical data collected through archival searches, field observations conducted at JINR in 2018–2019, and in-depth interviews, we tell a story of cultural differences in high energy physics by applying the concepts of ‘trading zones’ (P. Galison) and the translation of interests in actor-networks (B. Latour, M. Callon and others). We analyze three types of cultural diversity (specialization, nationality, and generational) in light of the implications of temporal context and the dichotomy between East and West, showing the roles cultural diversity plays in scientific collaboration (which is an integral part of as well as obstacle to scientific research that can nevertheless provide learning opportunities). Our study aims to demonstrate how disunity and diversity may function in scientific research and how high energy physics collaborations can remain productive despite sometimes deep divergences, including those between East and West. (shrink)

I'm Professor of Physics at the University of Washington in Seattle . I do basic research in ultra-relativistic heavy ion physics with the STAR experiment, using the RHIC facility at Brookhaven National Laboratory, colliding gold nuclei to produce systems that look something like the first microsecond of the Big Bang. I do not work much in cosmology and astrophysics, although I've published a paper or two in those areas, but I do write a bi-monthly science column for Analog Science (...) Fiction/Fact Magazine . One of my columns was entitled BOOMERanG and the Sound of the Big Bang " and was published in the January-2001 issue of Analog. It described the then-recent Antarctic balloon flight that mapped the small-angle temperature variations of the cosmic background radiation. Following the lead of the scientists involved in the project, I described the temperature variations they observed as, in effect, a recording of the "sound of the Big Bang" when the universe was 376 thousand years old. (shrink)

Novel forms of matter, such as states made of gluons (glueballs), multiquark mesons or baryons and hybrid mesons are predicted by low energy QCD, for which several candidates have recently been identified. Searching for such exotic states of matter and studying their production and decay properties in detail has become a flourishing field at the experimental facilities now available or being built - e.g. BESIII in Beijing, BELLE II at SuperKEKB, GlueX at Jefferson Lab, PANDA at FAIR, J-PARC and in (...) the upgraded LHC experiments, in particular LHCb. A modern primer in the field is required so as to both revive and update the teaching of a new generation of researchers in the field of QCD. These lectures on hadron spectroscopy are intended for Master and PhD students and have been originally developed for a course delivered at the Stefan Meyer Institute of the Austrian Academy of Sciences. They are phenomenologically oriented and intended as complementary material for basic courses in particle and nuclear physics. The book describes the spectra of light and heavy mesons and baryons, and introduces the fundamental properties based on symmetries. Further, it derives multiplet structures, mixing angle, decay coupling constants, magnetic moments of baryons, and predictions for multiquark states and compares these with suitable experimental data. Basic methods of calculating decay angular distributions and determining masses and widths of resonances are also presented. The appendices provide students and newcomers to the field with the necessary background information, and include a set of problems and solutions. (shrink)

This book covers a very broad spectrum of experimental and theoretical activity in particle physics, from the searches for the Higgs boson and physics beyond the Standard Model, to detailed studies of Quantum Chromodynamics, the B-physics sectors and the properties of hadronic matter at high energy density as realised in heavy-ion collisions. Starting with a basic introduction to the Standard Model and its most likely extensions, the opening section of the book presents an overview of the theoretical and phenomenological (...) framework of hadron collisions, and current theoretical models of frontier physics. In part II, discussion of the theory is supplemented by chapters on the detector capabilities and search strategies, as well as an overview of the main detector components, the initial calibration procedures and physics samples, and early LHC results. Part III completes the volume with a description of the physics behind Monte Carlo event generators, and a broad introduction to the main statistical methods used in high energy physics. LHC Phenomenology covers all of these topics at a pedagogical level, with the aim of providing young particle physicists with the basic tools required for future work on the various LHC experiments. It will also serve as a useful reference text for those working in the field. (shrink)

The development of atomic bombs under the auspices of the U. S. Army's Manhattan Project during World War II is considered to be the outstanding news story of the twentieth century. In this book, a physicist and expert on the history of the Project presents a comprehensive overview of this momentous achievement. The first three chapters cover the history of nuclear physics from the discovery of radioactivity to the discovery of fission, and would be ideal for instructors of a sophomore-level (...) "Modern Physics" course. Student-level exercises at the ends of the chapters are accompanied by answers. Chapter 7 covers the physics of first-generation fission weapons at a similar level, again accompanied by exercises and answers. For the interested layman and for non-science students and instructors, the book includes extensive qualitative material on the history, organization, implementation, and results of the Manhattan Project and the Hiroshima and Nagasaki bombing missions. The reader also learns about the legacy of the Project as reflected in the current world stockpiles of nuclear weapons.. (shrink)

This thesis focuses on one of the mechanisms for solving the baryon asymmetry of the Universe (BAU) which is a long-standing open question in both particle physics and cosmophysics. Electroweak baryogenesis (EWBG) is one attractive hypothetical scenario to solve this mystery because it can be verified by collider experiments. The author aims to clarify the possibility of EWBG, and to show its verifiability using the Higgs physics and electric dipole moments (EDMs) of an electron, neutron, and proton. The thesis begins (...) with a review of the BAU and EWBG. Subsequently, the possibility of EWBG in one effective model is discussed, which can be applied to some motivated physics beyond the Standard Model. Numerical analyses of electroweak phase transition and sphaleron solution are presented, and the closed time path formalism is also explained to estimate the BAU. After essential calculations for investigation of the possibility of EWBG, the relationship between the BAU and EDMs is described. Through the discussion of the result, it is concluded that both EDMs and the Higgs physics verify the scenario completely. The whole discussion in this thesis causes us to accept the current situation that is ripe for verification of EWBG. (shrink)

In the yeast Saccharomyces cerevisiae three positive transcriptional control elements are activated by stress conditions: heat shock elements (HSEs), stress response elements (STREs) and AP‐1 responsive elements (AREs). HSEs bind heat shock transcription factor (HSF), which is activated by stress conditions causing accumulation of abnormal proteins. STREs mediate transcriptional activation by multiple stress conditions. They are controlled by high osmolarity via the HOG signal pathway, which comprises a MAP kinase module and a two‐component system homologous to prokaryotic signal transducers. AREs (...) bind the transcription factor Yap1p. The three types of control elements seem to have overlapping, but distinct functions. Some stress proteins encoded by HSE‐regulated genes are necessary for growth of yeast under moderate stress, products of STRE‐activated genes appear to be important for survival under severe stress and ARE‐controlled genes may mainly function during oxidative stress and in the response to toxic conditions, such as caused by heavy metal ions. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:PROFESSING THE CREED AMONG THE WORLD'S RELIGIONS For Hans-Georg Gadamer FRANS JOZEF VAN BEECK, 8.J. Loyola University Chicago, Illinois The Creed, the Created Order, and the Religions T:HE CHRISTIAN CREED is a particular profession of aith, yet it is not Hie creed of a sect; it is essentially niversalist. Both are dear not only from the Creed's oontent but aJ,so fr.om. the act by which it is professed. By (...) means of the Creed, one particular, identifiable (" visible ") eommunity----the Christian Church-profosses, both to its own membership and to eviery pa,rt1cu1ar person or community 1that wants to listen, its faith :in God in the name of Jesus Christ. The part]cular profession is offered with a universa1ist intent, in the context of a communa:l missionary commitment to the whole world and, beyond that, in the perspectivie of the supernwbural, all-1 encompassing, escha:tologrcal "life of the world to come." It is not surprising, the1~efore, thait even those primitive trinitarian creeds that lack every trace of christoJogica.l narrative (and rthus also every ireferenoe rto Christ's coming to do justice to the living and the dead) still include a profession of at least a few eschatolog1erwl artides of belief at the end. The most nota.b1e among these features are il:he univiersaJ chm,ch (which represents and anticipates the finaJ gathering of the saints), rthe (definitive) forgivieness of sins, the resurrection of the flesh,,and rbhe life that fasts forever.1 But the Creed harbors another universraJism as well. It is 1 Cf. DS 1-6. 539 540 FRANS JOZEF VAN BEECK, S.J. natural, fuilldamentail, p:mtoilogiical. In!the text of the Creed, this univiersalism surfaces in the professwn of God,as Creato!l' of aJil,thait is, whether seen or unseen, and of Jesus Christ a:s God's 1agent in creation. In.addressing itself to humanity at ~arge, the Creed relies on this. It 'appeals to humanity's native eras-its native.attunement.to God am!d 1to the whole worLd, its limitless caipacity for ;authentic understanding, and its unquenchable thirsit for ioommunion. In the rhetoric of the Christian profiession of £aith, :the fO!l'IDer univiersalism enjoys pride of plare. The Creed's primary profession is positive: thematiicailly, the Creed is designed to formuilate the Christian £aiith in its mnc11ete, historic partioofarity, :in :i:ts commitment to the Christian mission to the whole worLd, and in its anticipation of :the eschaton. But if it is rtrue that the Creed primariily ·addresses itself to :ail:l of humanity with the es1chato1ogiterul message thrut is the horizon of the Christi,an faith, this positivie profoss,ion is undergirded by a commitment to humanity allld the wol'lld in their natu1~ail integrity, by means of ra "suhsidiairy universwlism." If, in the actualiity of its hisrboric e:~istence, the Coorch ·aiddresses itself to all of humanity :and the wor1d with its partrowlar message of sru1vati.on, it is only by virtue of.a fundam.entail, natural universalism thrut it can so aiddress them. And it is on the strength of this 1aitber univiersailism that the Christian community it·self, itoo, acknowledges an whl-iillclusive natura.l order which it shares with all. of humanity. " All of humanity " is no:t an 1abs:tmntion; it comes in the form of ithe greiat variety of "rull nations" (Mt ~8: 19), along with their great religions. The theologircail. 'bask of interpreting the Creed in light of ilts.commitment to £UDJdamentail universalism, therefo11e, must.somehow raise the issue of Christianiity ';s relationship with the world's great religions. ln taking on this issrue, we must remind ourselv;es of an important ooail:ity-one heavy with consequence, as will be1come ·dear in the oomse of this es1 say. This 11eality was not unknown to the first Christian apologists: the Consrtantinian THE CREED AND THE RELIGIONS 541 and Theodosian settlements of the fourth century slowly but surely, and ever more fo11cefolly, eased it ~nto abeyance. But it began to J.~eturn with a vengeance in the early eighteenth century, when the Enlightenment, iinereasingJy fascinated by the variety of religions and cultures in... (shrink)

The two works this paper focuses on (Anastasios Yannopoulos, Orthodoxy and the Problems of Contemporary World and Georgios Mantzaridis, Globalization and Universality. Phantom and Truth) represent a thorough analysis of contemporary history, in which globalization is the direction and purpose of the new vision in human relations and community. The lost of the individuality of these relations is considered to be a disease which has very strong religious and anthropological effects. The common feature is the reaffirmation of community in the (...) perspective of Eastern anthropology. (shrink)

My paper tackles the generic relationship between philosophy and law, the necessity of applying philosophy to law, the legitimacy and range of such an approach, the configuration of the way in which philosophy has left its mark in the juridical sphere. It surveys, in a chronological order, as well as in terms of their co-existence, the various stages of the relationship between philosophy and law. 1. Although both have been “within the walls”, law secludes itself, relatively speaking, in “the world (...) taken as a whole”, to shape its own identity, to survive as a self-sufficient, distinct technique (F. Geny), or it does it in a doctrinary way (positivism). 2. The representatives of philosophy in the juridical sphere are doing their best to uphold law’s struggle for knowledge, to have it gain recognition as a “science”, renounce its one-sidedness and harmonize with the others. 3. Juridical norms are not untouchable in relation with philosophy. Philosophy may work within juridical norms if it has an affinity with the content of juridical normativeness and respects its specificity. 4. The conclusion I reach is that we must try to cultivate a joint area bringing together philosophy and law, an area wherein the specific features of the two distinct fields reach a consensus for the sake of the human condition – hic et nunc. Philosophy bestows coherence and casts light on “law for man’s sake”, while the philosophically founded law appears to be the “normative project of the human”, a human practice inextricably connected with other types of practice, with man as a whole. The practical way to fulfil this goal, like the goal itself, will always be liable to criticism and improvement, open to debates and various options in a concrete socio-historical context. (shrink)

Nature Exposed to our Method of Questioning explores how we create our cultural assumptions about personhood, culture and nature.

Cases of poor care have been documented across the world. Contrary to professional requirements, evidence indicates that these sometimes go unaddressed. For patients, the outcomes of this inaction are invariably negative. Previous work has either focused on why poor care occurs and what might be done to prevent it, or on the reasons why those who are witness to it find it difficult to raise their concerns. Here, we build on this work but specifically foreground the responsibilities of registrants and (...) students who witness poor care. Acknowledging the challenges associated with raising concerns, we make the case that failure to address poor care is a breach of moral expectation, professional requirement and, sometimes, legal frameworks. We argue that reporting will be more likely to take place if those who wish to enter the profession have a realistic view of the challenges they may encounter. When nurses are provided with robust and applied education on ethics, when “real‐world” cases and exemplars are used in practice and when steps are taken to develop and encourage individual moral courage, we may begin to see positive change. Ultimately however, significant change is only likely to take place where practice cultures invite and welcome feedback, promote critical reflection, and where strong, clear leadership support is shown by those in positions of influence across organisations. (shrink)

Ion Soteropoulos reconciles the contradiction between the finite and infinite and transforms this reconciliation into the founding principle of motion. This book will appeal to readers interested in the logical mechanics of the physical universe, the hidden powers of our finite brain, and the utility of robots in the future.

The goal of this paper is primarily to pinpoint some substantial analytical and conceptual difficulties with the account of knowledge how proposed by (Stanley & Williamson, Knowing How, 2001) [henceforth S&W] and (Stanley, Knowing (How), 2011), (Stanley, Know How, 2011) based on (Groenendijk & Stokhof, 1984) [henceforth G&S] semantic analysis of embedded questions. In light of such difficulties, (1) we propose supplementing their account with an integrated approach of knowledge how, and suggest adding a mereological layer to the semantic framework (...) of embedded questions (2) we argue that the characteristics of what we call hybrid ways and hybrid knowledge strongly indicate reopening the issue of the proper account of questions towards the complementary relevant account of interrogation in communicative interactions, and the role of the context (in)forming knowledge-how. As a methodological principle, we remain neutral on the intellectualist vs anti-intellectualist debate. We also remain silent on the nature and explanation of the modes of presentations or ways of thinking that should be developed in order to adequately account for hybrid ways and hybrid knowledge. (shrink)

Descartes is considered to be the founder of modern rationalism. This is a clear statement which, however, does not show the manner in which rationalism as such appeared in the history of science, taking into account the turmoil of the Renaissance centuries, the significance of the Reform and the birth of modern science. As a founder of a new metaphysics, Descartes, through his work, remains par excellence the case in which the scholastic and Renaissance aftermaths as well as the Reform (...) mutations are mixed in a new synthesis that will be called modernity. This study focuses on reinterpreting Cartesianism from this perspective in the vast context of modernity’s metaphysical significance – it is a hypothesis that will need to be developed not only by means of hermeneutical instruments but, especially, by means of those instruments belonging to the history of culture and anthropology. (shrink)