Riazuddin

Foundation for Agricultural Resources Management and Environmental Remediation

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Fayyazuddin

Abdus Salam Centre for Physics

104

N. Paver

Saha Institute of Nuclear Physics

R. E. Marshak

University of Rochester

A. H. Zímerman

Universidade Estadual Paulista (Unesp)

Maqsood Qamar

Pakistan Agricultural Research Council

M. Jamil Aslam

Quaid-i-Azam University

Syed Abbas

Indian Institute of Technology Mandi

Muhammad Mamoon‐ur‐Rashid

Gomal University

Amjad Hussain Shah Gilani

Abdus Salam Centre for Physics

M. Ahmad

University College of Islamabad

Cooperative Institutions

Pakistan Agricultural Research Council

University of Agriculture Faisalabad

The Abdus Salam International Centre for Theoretical Physics (ICTP)

Quaid-i-Azam University

University of Karachi

The University of Agriculture, Peshawar

Ayub Agriculture Research Institute

University of Rochester

University of Veterinary and Animal Sciences

Abdus Salam Centre for Physics

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

QCD determination of theA 1-ρ-π system through vertex light-cone sum rules

Zeitschrift für Physik C (1986)

N.S. Craigie N. Paver Riazuddin

QCD sum rules

Cone (formal languages)

10.1007/bf01560679

Cite

Citations (3)

SU(6)Algebra of Gell-Mann: Mass Splittings and Nonleptonic Decays of Hadrons

Physical Review (1966)

Riazuddin K. T. Mahanthappa

We apply the $\mathrm{SU}(6)$ algebra of Gell-Mann to nonleptonic decays of hadrons. We assume that the weak-interaction Hamiltonian for $s$-wave decays transforms like $S_{7}^{}{}_{}{}^{5}$ (the seventh component of the space integral of the pseudoscalar quark density). Using the Fubini-Furlan-Adler-Weisberger technique and the partially conserved axial-vector current, we express the $s$-wave decay amplitudes in terms of the reduced matrix elements, which are the same as the ones that appear in the expression for mass splittings if one assumes that the symmetry-breaking part of the mass operator transforms like ${S}_{8}$ (the eighth component of the space integral of the scalar quark density). Making use of the fact that the mass-splitting parameter is universal, and assuming that the $s$-wave coupling constant ${G}_{s}$ is also universal, we predict a ratio $\frac{(K_{1}^{}{}_{}{}^{0}\ensuremath{\rightarrow}2\ensuremath{\pi})}{A(\ensuremath{\Sigma}_{\ensuremath{-}}^{}{}_{}{}^{\ensuremath{-}})}$ which is in excellent agreement with experiment. Knowing any one of the hyperon $s$-way decay amplitudes we can predict the others. Also we get $A(\ensuremath{\Sigma}_{+}^{}{}_{}{}^{+})=0$. The implications of these results are discussed.

Hamiltonian (control theory)

10.1103/physrev.147.972

Cite

Citations (33)

Efficacy of entomopathogenic nematodes against Galleria mellonella L.

Indian Journal of Entomology (2020)

Riazuddin Rinni Saharwat Swati Swati Seema Rani Jagpal Singh

Comparative efficacy of three natively isolated entomopathogenic nematodes (EPNs) species viz., Heterorhabditis indica (MK078602), Steinernema abbasi (MK078603) and Steinernema siamkayai (MK078604) (Nematoda: Rhabditida) isolated from districts of Uttar Pradesh were evaluated against wax moth Galleria mellonella (Lepidoptera: Pyralidae) larvae under laboratory conditions. EPNs of selected concentrations (0, 10, 20, 40, 60, 80 and 100 IJs/larva in 1 ml of distilled water) were applied against the 5th instar larvae using petridish bioassay. LC50 and LC90 values were analyzed at different periods of inoculation. All three natively isolated EPNs strains were observed to cause mortality at various doses and times after inoculation. Maximum mortality was observed after 48hr of inoculation in the minimum dose (IJs/larva). Among the three species- strains; strain Heterorhabditis indica (LD50 4.603 IJs/larva, 13.811 IJs/larva) was found to be the most effective followed by Steinernema abbasi (LD50 7.118 IJs/LD90 larva, LD90 24.607 IJs/larva) and S. siamkayai (LD50 10.663 IJs/larva, LD90 39.354 IJs/larva) after 48hr after inoculation.

Galleria mellonella

Entomopathogenic nematode

10.5958/0974-8172.2020.00122.4

Cite

Citations (1)

COMMUTATION RELATIONS OF WEAK CURRENTS IN BROKEN UNITARY SYMMETRY

Fayyazuddin Riazuddin

Commutation

Source

Cite

Citations (0)

On the φ→γ transition at a φ factory

Physics Letters B (1990)

N. Paver Riazuddin

B-factory

Factory (object-oriented programming)

Branching fraction

10.1016/0370-2693(90)91339-d

Cite

Citations (15)

Some remarks on the algebra of currents in the presence of electromagnetism

Annals of Physics (1972)

Riazuddin Fayyazuddin

Electromagnetism

Isovector

Commutation

10.1016/0003-4916(72)90188-1

Cite

Citations (2)

Neutral current and the sum rules for spin-dependent electroproduction

Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields (1988)

Fayyazuddin Riazuddin

A sum rule is derived for the deep-inelastic scattering of polarized and unpolarized electrons from polarized protons: ${\mathcal{F}}_{0}^{1}$ [4g${\ifmmode \tilde{}\else \~{}\fi{}}_{1}^{\mathrm{ep}}$(x,${q}^{2}$) -${c}_{W}$${g}_{1}^{\mathrm{ep}}$(x,${q}^{2}$)]dx =(1/6(F-D)[1-${\mathrm{\ensuremath{\alpha}}}_{\mathrm{s}}$/B (${q}^{2}$)/\ensuremath{\pi}], where ${g}_{1}^{\mathrm{ep}}$ is the usual spin-dependent structure function for electroproduction, g${\ifmmode \tilde{}\else \~{}\fi{}}_{1}^{\mathrm{ep}}$ is the spin-dependent structure function arising from the interference of the electromagnetic and weak neutral currents, and ${c}_{W}$=(3--8 ${\mathrm{sin}}^{2}$${\mathrm{\ensuremath{\theta}}}_{\mathrm{W}}$). The structure function g\ifmmode \tilde{}\else \~{}\fi{} $_{1}^{\mathrm{ep}}$, in principle, can be extracted from deep-inelastic scattering of unpolarized electrons from polarized protons.

Structure function

Spin structure

10.1103/physrevd.38.3390

Cite

Citations (2)

ROLE OF GLOBAL ANOMALIES IN SAVING PHENOMENOLOGICALLY BAD SITUATIONS

WORLD SCIENTIFIC eBooks (1995)

Riazuddin

10.1142/9789812831408_0039

Cite

Citations (0)

Veneziano Representation for Charged-Pion Photoproduction

Physical Review Letters (1969)

M. Ahmad Fayyazuddin Riazuddin

It is shown that the forward peak in the differential cross section for positive-pion photoproduction can be explained with Veneziano representation for the appropriate amplitude.Received 5 August 1969DOI:https://doi.org/10.1103/PhysRevLett.23.504©1969 American Physical Society

Representation

Scattering cross-section

10.1103/physrevlett.23.504

Cite

Citations (14)

Hadron-hadron scattering at large momentum transfer

Il Nuovo Cimento A (1973)

Fayyazuddin Riazuddin

Momentum transfer

10.1007/bf02787752

Cite

Citations (1)