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About 10,000 papers for “Hadron”

Hadron spectroscopy and hadron-hadron interactions

Gandini, Paolo · CERN Document Server (European Organization for Nuclear Research) · 2024

Outline This talk was originally assigned to Liupan An (LHCb), but unfortunately she was not able to attend This is the outline of the talk as usual the shopping list is too long I will cover only a small subset

Cited by 0Open access

Multifractal thermodynamics of hadron-hadron and hadron-nucleus \ninteractions

A. Bershadskii · Springer Link (Chiba Institute of Technology)

It is shown that the constant-specific-heat approximation \nis applicable to multifractal thermodynamics of hadron-hadron \nand hadron-nucleus interactions at high energies. Moreover, the \nconstant specific heats calculated from experimental data on \nhadron-hadron and hadron-nucleus interactions have approximately \nthe same value for both these types of multifractal multiproduction. \nThus this parameter may turn out to be an universal characteristic \nof the hadron-hadron and hadron-nucleus interactions. Some relationship \nof this phenomenon to multifractal thermodynamics at the onset of chaos \nis briefly discussed. \n \n \n

Cited by 0

Hard diffraction in lepton-hadron and hadron-hadron collisions

A. Białas · ArXiv.org · 2002

It is argued that the breakdown of factorization observed recently in the diffractive dijet production in deep inelastic lepton induced and hadron induced processes is naturally explained in the Good-Walker picture of diffraction dissociation. The explicit formula for the hadronic cross-section is given and successfully compared with the existing data.

Cited by 0Open access

Deep Inelastic Hadron-Hadron Scattering

N. A. McCubbin · Physica Scripta · 1982

This paper is a written version of three lectures given at the 1980 Arctic School of Physics held at Akaslompolo in Finland. The lectures were pitched at a very elementary and basic level, the aim being to familiarize the audience with the main ideas and results, and, I hope, to act as a bridge for the uninitiated to the real literature of the subject.

Cited by 1

High energy hadron-hadron collisions

T. T. Chou · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1990

Results of a study on high energy collision with the geometrical model are summarized in three parts: (i) the elastic hadron-hadron collision, (ii) the inelastic hadron-hadron collision, and (iii) the e{sup +}e{sup -} annihilation. The geometrical description of high-energy elastic scattering developed earlier is still in general agreement with experiments at the CERN-S{bar p}pS energies. A simple one-parameter expression for the blackness of {bar p}p system has been proposed recently which describes very well all existing data from ISR to S{bar p}pS energies. The geometrical description has also been extended to include processes of fragmentation and diffraction dissociation and other phenomena. In the past five years, a unified physical picture for multiparticle emission in hadron-hadron and e{sup +}e{sup -} collisions was developed. It focuses on the idea of the wide range of values for the total angular momentum in hadron-hadron collisions. An extension of this consideration yields a theory for the momentum distribution of the outgoing particles which agrees with {bar p}p and e{sup +}e{sup -} collision experiments. The results and conclusions of this theory have been extrapolated to higher energies and yielded many predictions which can be experimentally tested. 37 refs.

Cited by 1Open access

High Energy Hadron-Hadron Scattering

Kyungsik Kang · ArXiv.org · 1994

The elastic hadron-hadron scattering at high energies is one of the most fundamental subjects of all particle physics problems and yet is least understood in spite of many advances in quantum chromodynamics (QCD) at the conceptual level. We review here the recent theoretical and experimental status of the subject as well as the rigorous results of the high energy hadron-hadron scattering. Surprisingly enough, the high-energy models for the elastic and diffractive scattering abstracted from the Regge-Pomeron field theory is still {\it phenomenologically} successful to explain the high-energy scattering data though no rigorous derivation out of the QCD is yet available.

Cited by 0Open access

High energy hadron-hadron collisions

T. T. Chou · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1990

Results of a study on high energy collision with the geometrical model are summarized in three parts: (i) the elastic hadron-hadron collision, (ii) the inelastic hadron-hadron collision, and (iii) the e{sup +}e{sup {minus}} annihilation. For elastic collisions, a simple expression for the proton matter distribution is proposed which fits well the elastic {bar p}p scattering from ISR to S{bar p}pS energies within the geometrical model. The proton form factor is of the dipole form with an energy-dependent range parameter. The {bar p}p elastic differential cross section at Tevatron energies obtained by extrapolation is in good agreement with experiments. For multiparticle emission processes a unified physical picture for hadron-hadron and e{sup +}e{sup {minus}} collisions was proposed. A number of predictions were made, including the one that KNO-scaling does not obtain for e{sup +}e{sup {minus}} two-jet events. An extension of the considerations within the geometrical model led to a theory of the momentum distributions of the outgoing particles which are found in good agreement with current experimental data. Extrapolations of results to higher energies have been made. The cluster size of hadrons produced in e{sup +}e{sup {minus}} annihilation is found to increase slowly with energy.

Cited by 0Open access

High energy hadron-hadron collisions

T. T. Chou · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1991

Results of a study on high energy collision with the geometrical model are summarized in three parts: (1) the elastic hadron-hadron collision, (2) the inelastic hadron-hadron collision, and (3) the e{sup +}e{sup {minus}} annihilation. More recent studies are highlighted below. For elastic scattering, a modified form for the hadronic matter form factor of the proton was proposed which remains to be dipole in form but contains an energy-dependent range parameter. This new expression of the opacity function fits the elastic {bar p}p scattering very well from the ISR to S{bar p}pS energies. Extrapolation of this theory also yielded results in good agreement with the {bar p}p differential cross section measured at the Tevatron. For inelastic hadron-hadron collisions, we have made a systematic investigation of the single-particle momentum spectra in the entire S{bar p}pS energy region. Results are useful for the extrapolation of angular distribution to the higher SSC energies. In e{sup +}e{sup {minus}} annihilation, a detailed analysis of all available experimental multiplicity data from PETRA to LEP energies has been performed. We discovered that the cluster size of emitted hadrons increases steadily with energy and is close to 2 as we predicted.

Cited by 0Open access

Two-body hadron-hadron interactions

Michael, C · CERN Bulletin · 1972

The basic ingredients needed in a description of two-body scattering are summarized. The phenomenological tool of amplitude analysis is introduced and applied to pseudoscalar meson baryon scattering. A survey of models for such processes is presented. A discussion of unnatural parity exchange and vector meson production is given and finally some aspects of vacuum quantum number exchange treated. (56 refs).

Cited by 2Open access

Hadron

Prasad, Devika, '19, Castillo, Caitlyn, '20 · DigitalCommons-IMSA (Illinois Mathematics and Science Academy) · 2019

Pg 6 : Restructuring Biology at IMSA Pg 8 : Science in Black History Pg 10 : Prevention of Acidosis in Poultry Pg 11 : Why Bitcoin is Bad for the Environment Pg 12 : Uncovering the Twin Prime Conjecture Pg 14 : Nucleosome Influenced DNA Cleavage: Cas9 vs. ZFN Pg 15 : Artificially Produced Cells Communicate with Each Other Pg 17 : Hilbert, Godel, and a Foundation for the Whole of Mathematics

Cited by 0Open access