Publications (44)
K*0 production in Cu+Cu and Au+Au collisions at \sqrt{s_NN} = 62.4 GeV and 200 GeV
M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants +383
We report on K*0 production at mid-rapidity in Au+Au and Cu+Cu collisions at \sqrt{s_{NN}} = 62.4 and 200 GeV collected by the Solenoid Tracker at RHIC (STAR) detector. The K*0 is…
System size and energy dependence of near-side di-hadron correlations
STAR Collaboration, G. Agakishiev, M. M. Aggarwal +353
Two-particle azimuthal () and pseudorapidity () correlations using a trigger particle with large transverse momentum () in +Au, Cu+Cu and Au+Au collisions at $\…
A next-generation LHC heavy-ion experiment
D. Adamová, G. Aglieri Rinella, M. Agnello +395
The present document discusses plans for a compact, next-generation multi-purpose detector at the LHC as a follow-up to the present ALICE experiment. The aim is to build a nearly m…
Gravitational field of domain wall in Lyra geometry
F. Rahaman, P. Ghosh
In this paper, we study the domain wall with time dependent displacement vectors based on Lyra geometry in normal gauge i.e. displacement vector . The fiel…
Particle identification studies with a full-size 4-GEM prototype for the ALICE TPC upgrade
M. M. Aggarwal, Z. Ahammed, S. Aiola +177
A large Time Projection Chamber is the main device for tracking and charged-particle identification in the ALICE experiment at the CERN LHC. After the second long shutdown in 2019/…
Topological monopole's gauge field induced anomalous Hall effect in artificial honeycomb lattice
J. Guo, V. Dugaev, A. Ernst +3
Vortex magnetic structure in artificial honeycomb lattice provides a unique platform to explore emergent properties due to the additional Berry phase curvature imparted by chiral m…
An Experimental Exploration of the QCD Phase Diagram: The Search for the Critical Point and the Onset of De-confinement
STAR Collaboration, M. M. Aggarwal, Z. Ahammed +380
The QCD phase diagram lies at the heart of what the RHIC Physics Program is all about. While RHIC has been operating very successfully at or close to its maximum energy for almost…
Higher Moments of Net-proton Multiplicity Distributions at RHIC
M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants +380
We report the first measurements of the kurtosis (κ), skewness (S) and variance (Ï^2) of net-proton multiplicity (N_p - N_pbar) distributions at midrapidity for Au+Au collisions…
Strange baryon resonance production in GeV and collisions
The STAR collaboration, B. I. Abelev, M. M. Aggarwal +375
We report the measurements of and production in and collisions at GeV from the STAR collaboration. The yields and the $p_{…
Precision cross-sections for advancing cosmic-ray physics and other applications: a comprehensive programme for the next decade
D. Maurin, L. Audouin, E. Berti +32
Cosmic-ray physics in the GeV-to-TeV energy range has entered a precision era thanks to recent data from space-based experiments. However, the poor knowledge of nuclear reactions,…
First operation of LArTPC in the stratosphere as an engineering GRAMS balloon flight (eGRAMS)
R. Nakajima, S. Arai, K. Aoyama +60
GRAMS (Gamma-Ray and AntiMatter Survey) is a next-generation balloon/satellite experiment utilizing a LArTPC (Liquid Argon Time Projection Chamber), to simultaneously target astrop…
Challenges in QCD matter physics - The Compressed Baryonic Matter experiment at FAIR
CBM Collaboration, T. Ablyazimov, A. Abuhoza +585
Substantial experimental and theoretical efforts worldwide are devoted to explore the phase diagram of strongly interacting matter. At LHC and top RHIC energies, QCD matter is stud…
Measurements of Dihadron Correlations Relative to the Event Plane in Au+Au Collisions at GeV
H. Agakishiev, M. M. Aggarwal, Z. Ahammed +366
Dihadron azimuthal correlations containing a high transverse momentum () trigger particle are sensitive to the properties of the nuclear medium created at RHIC through the str…
Precision cross-sections for advancing cosmic-ray physics. Input to the 2026 ESPPU from the XSCRC community
S. Mariani, L. Audouin, E. Berti +32
The latest generation of cosmic-ray direct detection experiments is providing a wealth of high-precision data, stimulating a very rich and active debate in the community on the rel…
Gamma-Ray and AntiMatter Survey(GRAMS) experiment
J. Zeng, T. Aramaki, D. Ames +62
The Gamma-Ray and AntiMatter Survey (GRAMS) is a next-generation experiment using a Liquid Argon Time Projection Chamber (LArTPC) detector to measure MeV gamma rays and antiparticl…
An analysis of the zero energy states in graphene
P. Ghosh, P. Roy
Using the concept of complex non PT symmetric potential we study creation of zero energy states in graphene by a scalar potential. The admissible range of the potential parameter v…
Collisional Hardening of Compact Binaries in Globular Clusters
S. Banerjee, P. Ghosh
We consider essential mechanisms for orbit-shrinkage or "hardening" of compact binaries in globular clusters to the point of Roche-lobe contact and X-ray emission phase, focussing…
The STAR Photon Multiplicity Detector
M. M. Aggarwal, S. K. Badyal, P. Bhaskar +32
Details concerning the design, fabrication and performance of STAR Photon Multiplicity Detector (PMD) are presented. The PMD will cover the forward region, within the pseudorapidit…
Strangeness Enhancement in Cu+Cu and Au+Au Collisions at \sqrt{s_{NN}} = 200 GeV
STAR Collaboration, H. Agakishiev, M. M. Aggarwal +369
We report new STAR measurements of mid-rapidity yields for the , , , , , , particles in Cu+Cu collisions at \sNN{200…
Inclusive J/psi production in pp collisions at sqrt(s) = 2.76 TeV
ALICE Collaboration, B. Abelev, J. Adam +966
The ALICE Collaboration has measured inclusive J/psi production in pp collisions at a center of mass energy sqrt(s)=2.76 TeV at the LHC. The results presented in this Letter refer…
Scientific Prospects for Hard X-ray Polarimetry
H. Krawczynski, A. Garson, Q. Guo +4
X-ray polarimetry promises to give qualitatively new information about high-energy sources. Examples of interesting source classes are binary black hole systems, rotation and accre…
Directed and elliptic flow of charged particles in Cu+Cu collisions at 22.4 GeV
G. Agakishiev, M. M. Aggarwal, Z. Ahammed +366
This paper reports results for directed flow and elliptic flow of charged particles in Cu+Cu collisions at 22.4 GeV at the Relativistic Heavy Ion C…
Investigations of temperature-dependent photoluminescence of uncoated and silver-coated CdS quantum dots
P. Ghosh, D. Kushavah, P. K. Mohapatra +3
We report temperature-dependent photoluminescence (PL) studies and PL relaxation dynamics for uncoated and silver-coated CdS quantum dots (QDs). Room-temperature photoluminescence…
A study of global monopole in Lyra geometry
F. Rahaman, S. Mal, P. Ghosh
A class of exact static solution around a global monopole resulting from the breaking of a global S0(3) symmetry is obtained in the context of Lyra geometry. Our solution is shown…
The Consequences of the Cosmic Star-Formation Rate: X-ray Number Counts
A. Ptak, R. Griffiths, N. White +1
We discuss the observable consequences for the detection of galaxies in the X-ray bandpass resulting from a peak in the cosmic star-formation rate at a redshift > 1. Following Whit…
Upsilon cross section in p+p collisions at sqrt(s) = 200 GeV
STAR Collaboration, B. I. Abelev, M. M. Aggarwal +381
We report on a measurement of the Upsilon(1S+2S+3S) -> e+e- cross section at midrapidity in p+p collisions at sqrt(s)=200 GeV. We find the cross section to be 114 +/- 38 (stat.) +2…
Gravitational field of a higher dimensional global monopole in Lyra geometry
F. Rahaman, K. Maity, P. Ghosh +1
We present a five dimensional global monopole within the framework of Lyra geometry. Also the gravitational field of the monopole solution has been considered.
Antihelium-3 Sensitivity for the GRAMS Experiment
J. Zeng, T. Aramaki, K. Aoyama +62
The Gamma-Ray and AntiMatter Survey (GRAMS) is a next-generation balloon/satellite mission utilizing a Liquid Argon Time Projection Chamber (LArTPC) detector to measure both MeV ga…
Pion femtoscopy in p+p collisions at sqrt(s)=200 GeV
M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants +380
The STAR Collaboration at RHIC has measured two-pion correlation functions from p+p collisions at sqrt(s)=200 GeV. Spatial scales are extracted via a femtoscopic analysis of the co…
Studies of di-jet survival and surface emission bias in Au+Au collisions via angular correlations with respect to back-to-back leading hadrons
H. Agakishiev, M. M. Aggarwal, Z. Ahammed +373
We report first results from an analysis based on a new multi-hadron correlation technique, exploring jet-medium interactions and di-jet surface emission bias at RHIC. Pairs of bac…
Multidimensional global monopole in presence of Electromagnetic Field
F. Rahaman, P. Ghosh, M. Kalam +1
We study the gravitational properties of a global monopole in dimensional space-time in presence of electromagnetic field.
Wormhole and C-field
F. Rahaman, B. C. Bhui, P. Ghosh
It is well known that a C-field, generated by a certain source equation leads to interesting changes in the cosmological solutions of Einstein's equations. In this article we prese…
Semiclassical gravitational effects around global monopole in Brans-Dicke theory
F. Rahaman, P. Ghosh
In recent past, W.A.Hiscock [ Class.Quan.Grav. (1990) 7,6235 ] studied the semi classical gravitational effects around global monopole. He obtained the vacuum expectation value of…
Anomalous centrality evolution of two-particle angular correlations from Au-Au collisions at = 62 and 200 GeV
STAR Collaboration, G. Agakishiev, M. M. Aggarwal +350
We present two-dimensional (2D) two-particle angular correlations on relative pseudorapidity and azimuth for charged particles from Au-Au collisions at $\sqrt{s_{\rm NN}}…
The Compton-Pair telescope: A prototype for a next-generation MeV -ray observatory
Janeth Valverde, Nicholas Kirschner, Zachary Metzler +31
The Compton Pair (ComPair) telescope is a prototype that aims to develop the necessary technologies for future medium energy gamma-ray missions and to design, build, and test the p…
Azimuthal di-hadron correlations in d+Au and Au+Au collisions at GeV from STAR
STAR Collaboration, M. M. Aggarwal, Z. Ahammed +384
Yields, correlation shapes, and mean transverse momenta \pt{} of charged particles associated with intermediate to high-\pt{} trigger particles ($2.5 < \pt < 10$ \GeVc) in d+Au and…
Observation of four-photon absorption and determination of corresponding nonlinearities in CdS quantum dots
P. Ghosh, E. Ramya, P. K. Mohapatra +5
Bound- and excited-state electronic nonlinearities in CdS quantum dots have been investigated by Degenerate Four-Wave Mixing (DFWM) and Z-scan techniques in the femtosecond time re…
Energy and system-size dependence of two- and four-particle measurements in heavy-ion collisions at RHIC and their implications on flow fluctuations and nonflow
The STAR Collaboration, G. Agakishiev, M. M. Aggarwal +344
We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulants ( and ) for Au+Au and Cu+Cu collisions at center of…
Chemically induced ferromagnetism near room temperature in single crystal (ZnCr)Te half-metal
J. Guo, A. Sarikhani, P. Ghosh +3
Magnetic semiconductors are at the core of recent spintronics research endeavors. Chemically doped II-VI diluted magnetic semiconductors, such as (ZnCr)Te, provide pr…
A Honeycomb Proportional Counter for Photon Multiplicity Measurement in the ALICE Experiment
M. M. Aggarwal, S. K. Badyal, V. S. Bhatia +22
A honeycomb detector consisting of a matrix of 96 closely packed hexagonal cells, each working as a proportional counter with a wire readout, was fabricated and tested at the CERN…
Higher dimensional global monopole with cosmological term
F. Rahaman, P. Ghosh, M. Kalam +1
We investigate the space-time of a global monopole in a five dimensional space-time in presence of the cosmological term. Also the gravitational properties of the monopole solution…
Can disk-magnetosphere interaction models and beat frequency models for quasi-periodic oscillation in accreting X-ray pulsars be reconciled?
E. Bozzo, L. Stella, M. Vietri +1
In this paper we review some aspects of the theory of magnetic threaded disks. We discuss in particular the equations that determine the position of the inner disk boundary by usin…
Beam-Energy and System-Size Dependence of Dynamical Net Charge Fluctuations
B. I. Abelev, M. M. Aggarwal, Z. Ahammed +360
We present measurements of net charge fluctuations in collisions at 19.6, 62.4, 130, and 200 GeV, collisions at 62.4, 200…
NiSi: New venue for antiferromagnetic spintronics
P. Ghosh, J. Guo, F. Ye +5
Envisaging antiferromagnetic spintronics pivots on two key criteria of high transition temperature and tuning of underlying magnetic order using straightforward application of magn…