Publications (123)
Failed gamma-ray bursts and orphan afterglows
Y. F. Huang, Z. G. Dai, T. Lu
It is believed that orphan afterglow searches can help to measure the beaming angle in gamma-ray bursts (GRBs). Great expectations have been put on this method. We point out that t…
CMB Angular Power Spectrum from Correlated Primordial Fluctuation
B. Yu, T. Lu
The usual inflationary scenario predicts a Gaussian random primordial density fluctuation, different Fourier modes of which do not correlate with each other. In this paper we propo…
Coalescence of Strange-Quark Planets with Strange Stars: a New Kind of Sources for Gravitational Wave Bursts
J. J. Geng, Y. F. Huang, T. Lu
Strange quark matter (SQM) may be the true ground state of hadronic matter, indicating that the observed pulsars may actually be strange stars, but not neutron stars. According to…
What do -ray bursts look like?
T. Lu
There have been great and rapid progresses in the field of -ray bursts (denoted as GRBs) since BeppoSAX and other telescopes discovered their afterglows in 1997. Here, we will…
Dynamical Evolution of Gamma-Ray Burst Remnants with Evolving Radiative Efficiency
J. B. Feng, Y. F. Huang, Z. G. Dai +1
In previous works, a generic dynamical model has been suggested by Huang et al., which is shown to be correct for both adiabatic and radiative blastwaves, and in both ultra-relativ…
Neutrino Afterglows and Progenitors of Gamma-Ray Bursts
Z. G. Dai, T. Lu
Currently popular models for progenitors of gamma-ray bursts (GRBs) are the mergers of compact objects and the explosions of massive stars. These two cases have distinctive environ…
Evidence of Mass Ordering of Charm and Bottom Quark Energy Loss in Au+Au Collisions at RHIC
STAR Collaboration, M. S. Abdallah, B. E. Aboona +359
Partons traversing the strongly interacting medium produced in heavy-ion collisions are expected to lose energy depending on their color charge and mass. We measure the nuclear mod…
On the Optical Light Curves of Afterglows from Jetted Gamma-ray Burst Ejecta: Effects of Parameters
Y. F. Huang, Z. G. Dai, T. Lu
Due to some refinements in the dynamics, we can follow the overall evolution of a realistic jet numerically till its bulk velocity being as small as . We find n…
Centrality and transverse momentum dependence of higher-order flow harmonics of identified hadrons in Au+Au collisions at = 200 GeV
STAR Collaboration, M. S. Abdallah, B. E. Aboona +383
We present high-precision measurements of elliptic, triangular, and quadrangular flow , , and , respectively, at midrapidity () for identified hadron…
Well-posedness of a non-local abstract Cauchy problem with a singular integral
H. Jiang, T. Lu, X. Zhu
A non-local abstract Cauchy problem with a singular integral is studied, which is a closed system of two evolution equations for a real-valued function and a function-valued functi…
Fireball/Blastwave Model and Soft Gamma-ray Repeaters
Y. F. Huang, Z. G. Dai, T. Lu
Soft gamma-ray repeaters are at determined distances and their positions are known accurately. If observed, afterglows from their soft gamma-ray bursts will provide important clues…
GRB 060206: hints of precession of the central engine?
X. W. Liu, X. F. Wu, T. Lu
Aims. The high-redshift (z = 4:048) gamma-ray burst GRB 060206 showed unusual behavior, with a significant rebrightening by a factor of ~ 4 at about 3000 s after the burst. We argu…
Gamma-ray burst afterglows and evolution of postburst fireballs with energy injection from strongly magnetic millisecond pulsars
Z. G. Dai, T. Lu
Millisecond pulsars with strong magnetic fields may be formed through several processes, e.g. accretion-induced collapse of magnetized white dwarfs, merger of two neutron stars. Du…
Measurement of sequential suppression in Au+Au collisions at = 200 GeV with the STAR experiment
STAR Collaboration, B. E. Aboona, J. Adam +357
We report on measurements of sequential suppression in Au+Au collisions at = 200 GeV with the STAR detector at the Relativistic Heavy Ion Collider (R…
Probing Late-Stage Hadronic Interactions at High Baryon Density via Production in the RHIC Beam Energy Scan Program
STAR Collaboration, B. E. Aboona, J. Adam +360
A precision measurement of the meson yield is reported in Au+Au collisions at and using the high-statistic…
GRBS: Standard Model & Beyond
T. Lu
There have been great and rapid progresses in the field of -ray bursts since BeppoSAX and other telescopes discovered their afterglows in 1997. In this talk, the main observati…
The influence of inverse Compton scattering on GRB afterglows: one possible way to flatten and steepen the light curves
D. M. Wei, T. Lu
The fireball model of gamma-ray bursts predicted that when the energetic blast wave encountered the surrounding medium, there will be afterglow emission, and the subsequent aftergl…
Intrinsic Parameters of GRB990123 from Its Prompt Optical Flash and Afterglow
X. Y. Wang, Z. G. Dai, T. Lu
We have constrained the intrinsic parameters, such as the magnetic energy density fraction (), the electron energy density fraction (), the initial Lorentz factor ($Î…
Primordial non-Gaussianity estimator: the inhomogeneous noise effect
B. Yu, T. Lu
Since the inhomogeneous instrument noise can produce extra non-Gaussianity in the CMB anisotropy, its effect should be carefully subtracted in the primordial non-Gaussianity estima…
Onset of Constituent Quark Number Scaling in Heavy-Ion Collisions at RHIC
STAR Collaboration, B. E. Aboona, J. Adam +355
Partonic collectivity is one of the necessary signatures for the formation of quark-gluon plasma in high-energy nuclear collisions. Number of constituent quarks (NCQ) scaling has b…
Jet-hadron correlations with respect to the event plane in = 200 GeV Au+Au collisions in STAR
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +348
Angular distributions of charged particles relative to jet axes are studied in = 200 GeV Au+Au collisions as a function of the jet orientation with respect…
Rapid fading of optical afterglows as evidence for beaming in gamma-ray bursts
Y. F. Huang, Z. G. Dai, T. Lu
Based on the refined dynamical model proposed by us earlier for beamed -ray burst ejecta, we carry out detailed numerical procedure to study those -ray bursts with rapidly…
Azimuthal anisotropy measurement of (multi-)strange hadrons in Au+Au collisions at = 54.4 GeV
STAR Collaboration, M. S. Abdallah, B. E. Aboona +356
Azimuthal anisotropy of produced particles is one of the most important observables used to access the collective properties of the expanding medium created in relativistic heavy-i…
Pion, kaon, and (anti-)proton production in U+U Collisions at = 193 GeV measured with the STAR detector
STAR Collaboration, M. S. Abdallah, B. E. Aboona +339
We present the first measurements of transverse momentum spectra of , , at midrapidity () in U+U collisions at = 193 GeV…
Measurements of the elliptic and triangular azimuthal anisotropies in central He+Au, +Au and +Au collisions at $\mbox{$\sqrt{s_{\mathrm{NN}}}$}$ = 200 GeV
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +343
The elliptic () and triangular () azimuthal anisotropy coefficients in central He+Au, +Au, and +Au collisions at $\mbox{$\sqrt{s_{\mathrm{NN}}}$}$ = 200 GeV a…
Could the Unusual Optical Afterglow of GRB 000301c Arise from a Non-relativistic Shock with Energy Injection?
Z. G. Dai, T. Lu
Recent observations on the GRB 000301c afterglow show that three breaks appear in the R-band light curve, and in particular the decay slope at late times is as steep as -3.0. This…
External shock model for the large-scale, relativistic X-ray jets from the microquasar XTE J1550-564
X. Y. Wang, Z. G. Dai, T. Lu
Large-scale, decelerating, relativistic X-ray jets due to material ejected from the black-hole candidate X-ray transient and microquasar XTE J1550-564 has been recently discovered…
Gamma-ray bursts: postburst evolution of fireballs
Y. F. Huang, Z. G. Dai, D. M. Wei +1
The postburst evolution of fireballs that produce -ray bursts is studied, assuming the expansion of fireballs to be adiabatic and relativistic. Numerical results as well as an…
Light Curves of Jetted Gamma-Ray Burst Afterglows in Circumstellar Clouds
Z. G. Dai, Y. F. Huang, T. Lu
The afterglow emission from a spreading jet expanding in a circumstellar cloud is discussed. Prompt X-ray radiation and a strong UV flash from the reverse shock produced by the int…
Longitudinal and transverse spin transfer to and hyperons in polarized + collisions at GeV
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +364
The longitudinal and transverse spin transfers to () hyperons in polarized proton-proton collisions are expected to be sensitive to the helicity and transversity…
Pattern of Global Spin Alignment of and mesons in Heavy-Ion Collisions
STAR Collaboration, M. S. Abdallah, B. E. Aboona +379
Notwithstanding decades of progress since Yukawa first developed a description of the force between nucleons in terms of meson exchange, a full understanding of the strong interact…
Observation of the Antimatter Hypernucleus
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +350
At the origin of the Universe, asymmetry between the amount of created matter and antimatter led to the matter-dominated Universe as we know today. The origins of this asymmetry re…
Event-by-event correlations between () hyperon global polarization and handedness with charged hadron azimuthal separation in Au+Au collisions at from STAR
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +342
Global polarizations () of () hyperons have been observed in non-central heavy-ion collisions. The strong magnetic field primarily created by the spectator protons…
Is GRO J1744-28 a Strange Star?
K. S. Cheng, Z. G. Dai, D. M. Wei +1
The unusal hard x-ray burster GRO J1744-28 recently discovered by the Compton Gamma-ray Observatory (GRO) can be modeled as a strange star with a dipolar magnetic field $\le 10^{11…
Casimir forces on a silicon micromechanical chip
J. Zou, Z. Marcet, A. W. Rodriguez +7
Quantum fluctuations give rise to van der Waals and Casimir forces that dominate the interaction between electrically neutral objects at sub-micron separations. Under the trend of…
Rebrightening of XRF 030723: further evidence for a two-component jet in gamma-ray burst
Y. F. Huang, X. F. Wu, Z. G. Dai +2
Optical afterglows from two-component jets under various configurations are investigated numerically. Generally, the light curve is characterized by a rapid rebrightening when the…
Gamma-Ray Bursts: Afterglows and Central Engines
K. S. Cheng, T. Lu
Gamma-ray bursts (GRBs) are most intense transient gamma-ray events in the sky when they are on together with the strong evidences (i.e. the isotropic and inhomogeneous distributio…
Correlations of event activity with hard and soft processes in + Au collisions at = 200 GeV at STAR
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +346
With the STAR experiment at the BNL Relativisic Heavy Ion Collider, we characterize = 200 GeV p+Au collisions by event activity (EA) measured within the pseu…
Upper Limit on the Chiral Magnetic Effect in Isobar Collisions at the Relativistic Heavy-Ion Collider
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +342
The chiral magnetic effect (CME) is a phenomenon that arises from the QCD anomaly in the presence of an external magnetic field. The experimental search for its evidence has been o…
Beaming Effects in Gamma-Ray Bursts
Y. F. Huang, T. Lu, Z. G. Dai +1
Based on a refined generic dynamical model, we investigate afterglows from jetted gamma-ray burst (GRB) remnants numerically. In the relativistic phase, the light curve break could…
Beam energy dependence of the linear and mode-coupled flow harmonics in Au+Au collisions
STAR Collaboration, B. E. Aboona, J. Adam +341
The linear and mode-coupled contributions to higher-order anisotropic flow are presented for Au+Au collisions at = 27, 39, 54.4, and 200 GeV and compared t…
Nonrelativistic phase in gamma-ray burst afterglows
Y. F. Huang, T. Lu, K. S. Cheng
The discovery of multiband afterglows definitely shows that most -ray bursts are of cosmological origin. -ray bursts are found to be one of the most violent explosive pheno…
Two-particle correlations on transverse rapidity in Au+Au collisions at GeV at STAR
STAR Collaboration, M. S. Abdallah, B. E. Aboona +381
Two-particle correlation measurements projected onto two-dimensional, transverse rapidity coordinates (), allow access to dynamical properties of the QCD medium prod…
Elliptic Flow of Heavy-Flavor Decay Electrons in Au+Au Collisions at = 27 and 54.4 GeV at RHIC
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +359
We report on new measurements of elliptic flow () of electrons from heavy-flavor hadron decays at mid-rapidity () in Au+Au collisions at = 27 a…
Measurement of flow coefficients in high-multiplicity +Au, +Au and HeAu collisions at =200 GeV
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +350
Flow coefficients ( and ) are measured in high-multiplicity +Au, +Au, and HeAu collisions at a center-of-mass energy of = 200 G…
Production of Protons and Light Nuclei in Au+Au Collisions at = 3 GeV with the STAR Detector
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +349
We report the systematic measurement of protons and light nuclei production in Au+Au collisions at = 3 GeV by the STAR experiment at the Relativistic Heavy…
Measurement of transverse polarization of and hyperons inside jets in collisions at GeV
STAR Collaboration, B. E. Aboona, J. Adam +363
A surprisingly large transverse polarization of hyperons in unpolarized hadron-nucleon/nucleus collisions has been observed for 50 years, and the origin of this polarization r…
Refined parameters, formation, and dynamical stability of the wild exoplanet system K2-312=HD 80653
L. Naponiello, E. Poretti, K. Rice +24
The architecture of planetary systems hosting ultra-short-period (USP) planets is a key diagnostic for understanding formation and migration scenarios. The presence of outer giant…
Emission Processes of High Energy Gamma Rays from Gamma-Ray Bursts
X. Y. Wang, Z. G. Dai, T. Lu
Synchrotron self-Compton (SSC) process in the reverse shocks of gamma-ray bursts is suggested to be responsible for the observed prompt high-energy gamma-ray emissions from several…
Breaking the Degeneracy: Optimal Use of Three-point Weak Lensing Statistics
S. Vafaei, T. Lu, L. van Waerbeke +3
We study the optimal use of third order statistics in the analysis of weak lensing by large-scale structure. These higher order statistics have long been advocated as a powerful to…
Energy Dependence of Intermittency for Charged Hadrons in Au+Au Collisions at RHIC
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +364
Density fluctuations near the QCD critical point can be probed via an intermittency analysis in relativistic heavy-ion collisions. We report the first measurement of intermittency…
The MARS15-based FermiCORD code system for calculation of the accelerator-induced residual dose
A. Grebe, A. Leveling, T. Lu +2
The FermiCORD code system, a set of codes based on MARS15 that calculates the accelerator-induced residual doses at experimental facilities of arbitrary configurations, has been de…
Measurement of Kaon Directed Flow in Au+Au Collisions in the High Baryon Density Region
STAR Collaboration, B. E. Aboona, J. Adam +360
Rapidity-odd directed flow measurements are presented for and in AuAu collisions at = 3.0, 3.2, 3.5, and 3.9 GeV with the STAR exp…
Measurement of and binding energy in Au+Au collisions at = 3 GeV
STAR Collaboration, M. S. Abdallah, B. E. Aboona +357
Measurements of mass and binding energy of and in Au+Au collisions at GeV are presented, with an aim to address the charge…
GRB afterglows: deep Newtonian phase and its application
Y. F. Huang, T. Lu, K. S. Cheng
Gamma-ray burst afterglows have been observed for months or even years in a few cases. It deserves noting that at such late stages, the remnants should have entered the deep Newton…
Collision-energy Dependence of Deuteron Cumulants and Proton-deuteron Correlations in Au+Au collisions at RHIC
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +351
We report the first measurements of cumulants, up to order, of deuteron number distributions and proton-deuteron correlations in Au+Au collisions recorded by the STAR expe…
A Possible Model for the Supernova/Gamma-Ray Burst Connection
X. Y. Wang, Z. G. Dai, T. Lu +2
Conversion from neutron stars to strange stars as a possible mechanism of cosmological gamma-ray bursts (GRBs) has been discussed in previous works, although the existence of stran…
Prompt High Energy -Ray Emission From the Synchrotron Self-Compton Process in the Reverse Shocks of -Ray Bursts
X. Y. Wang, Z. G. Dai, T. Lu
In the standard scenario of the fireball model of gamma-ray bursts(GRBs), the huge initial energy release produces a relativistic blast wave expanding into the external medium and…
Optical Flashes and Very Early Afterglows in Wind Environments
X. F. Wu, Z. G. Dai, Y. F. Huang +1
The interaction of a relativistic fireball with its ambient medium is described through two shocks: a reverse shock that propagates into the fireball, and a forward shock that prop…
Hyperon polarization along the beam direction relative to the second and third harmonic event planes in isobar collisions at = 200 GeV
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +345
The polarization of and hyperons along the beam direction has been measured relative to the second and third harmonic event planes in isobar Ru+Ru and Zr+Zr collision…
Diverse Temporal Properties of GRB Afterglow
D. M. Wei, T. Lu
The detection of delayed X-ray, optical and radio emission, "afterglow", associated with -ray bursts (GRBs) is consistent with fireball models, where the emission are produced…
X-ray flares: late internal and late external shocks
X. F. Wu, Z. G. Dai, X. Y. Wang +3
We analyze several recently detected gamma-ray bursts (GRBs) with late X-ray flares in the context of late internal shock and late external shock models. We find that the X-ray fla…
Can all breaks in GRB afterglows be explained by jet effects?
D. M. Wei, T. Lu
Whether gamma-ray bursts are highly beamed or not is a very important question, since it has been pointed out that the beaming will lead to a sharp break in the afterglow light cur…
Possible geometries of afterglow generation in the gamma-ray burst GRB990705
X. Y. Wang, Z. G. Dai, T. Lu
The absorption feature detected in the prompt X-ray emission of GRB990705 has important consequences for its circum-burst environment and therefore on its afterglows. Here we inves…
The Inverse Compton Emission Spectra in the Very Early Afterglows of Gamma-Ray Bursts
X. Y. Wang, Z. G. Dai, T. Lu
We calculate the spectra of inverse Compton (IC) emissions in gamma-ray burst (GRB) shocks produced when relativistic ejecta encounters the external interstellar medium, assuming a…
Constraining the origin of TeV photons from gamma-ray bursts with delayed MeV-GeV emission formed by interaction with cosmic infrared/microwave background photons
X. Y. Wang, K. S. Cheng, Z. G. Dai +1
It has been suggested that electromagnetic cascade of very high energy gamma-rays from gamma-ray bursts (GRBs) in the infrared/microwave background can produce delayed MeV-GeV phot…
Hydrodynamics of Relativistic Blast Waves in a Density-Jump Medium and Their Emission Signature
Z. G. Dai, T. Lu
We analyze in detail the hydrodynamics and afterglow emission of an ultrarelativistic blast wave when it expands in a density-jump medium. Such a medium is likely to appear in the…
Spectrum and Duration of Delayed MeV-GeV Emission of Gamma-Ray Bursts in Cosmic Background Radiation Fields
Z. G. Dai, T. Lu
We generally analyze prompt high-energy emission above a few hundreds of GeV due to synchrotron self-Compton scattering in internal shocks. However, such photons cannot be detected…
production in Au+Au collisions at = 7.7, 11.5, 14.5, 19.6, 27 and 39 GeV from RHIC beam energy scan
STAR Collaboration, M. S. Abdallah, B. E. Aboona +359
We report the measurement of meson at midrapidity ( 1.0) in Au+Au collisions at ~=~7.7, 11.5, 14.5, 19.6, 27 and 39 GeV collected by the STAR expe…
GRB afterglows in the deep Newtonian phase
Y. F. Huang, K. S. Cheng, Z. G. Dai +1
In many GRBs, afterglows have been observed for months or even years. It deserves noting that at such late stages, the remnants should have entered the deep Newtonian phase, during…
Evidence for Nonlinear Gluon Effects in QCD and their Dependence at STAR
STAR Collaboration, M. S. Abdallah, B. E. Aboona +382
The STAR Collaboration reports measurements of back-to-back azimuthal correlations of di-s produced at forward pseudorapidities () in +, Al, and Au…
Structure and spatial distribution of Ge nanocrystals subjected to fast neutron irradiation
S. Levy, I. Shlimak, D. H. Dressler +4
The influence of fast neutron irradiation on the structure and spatial distribution of Ge nanocrystals (NC) embedded in an amorphous SiO2 matrix has been studied. The investigation…
Optical Flash of GRB 990123: constraints on the physical parameter of the reverse shock
Y. Z. Fan, Z. G. Dai, Y. F. Huang +1
The optical flash accompanying GRB 990123 is believed to be powered by the reverse shock of a thin shell. With the best fitted physical parameters for GRB 990123 (Panaitescu & Kuma…
Higher-Order Cumulants and Correlation Functions of Proton Multiplicity Distributions in = 3 GeV Au+Au Collisions at the RHIC STAR Experiment
STAR Collaboration, M. S. Abdallah, B. E. Aboona +358
We report a measurement of cumulants and correlation functions of event-by-event proton multiplicity distributions from fixed-target Au+Au collisions at = 3 GeV…
Energy Independence of the Collins Asymmetry in Collisions
STAR Collaboration, B. E. Aboona, J. Adam +367
The STAR experiment reports new, high-precision measurements of the transverse single-spin asymmetries for within jets, namely the Collins asymmetries, from transversely…
Light Nuclei Collectivity from = 3 GeV Au+Au Collisions at RHIC
STAR Collaboration, M. S. Abdallah, B. E. Aboona +383
In high-energy heavy-ion collisions, partonic collectivity is evidenced by the constituent quark number scaling of elliptic flow anisotropy for identified hadrons. A breaking of th…
The evolution of GRB remnants
D. M. Wei, T. Lu
The detection of the delayed emission in X-ray, optical and radio band, i.e. the afterglow of -ray bursts (GRBs), suggestes that the sources of GRBs are likely to be at cosmolo…
Gamma-Ray Bursts from Neutron Star Kicks
Y. F. Huang, Z. G. Dai, T. Lu +2
The idea that gamma-ray bursts might be a kind of phenomena associated with neutron star kicks was first proposed by Dar & Plaga (1999). Here we study this mechanism in more detail…
Inclusive jet cross section in collisions at and GeV
STAR Collaboration, B. E. Aboona, J. Adam +377
Jets are collimated clusters of particles formed by the hadronization of partons following a hard interaction. In proton-proton () collisions at the Relativistic Heavy Ion Coll…
Analytical light curves in the realistic model for GRB afterglows
X. F. Wu, Z. G. Dai, Y. F. Huang +1
(abridged) Afterglow light curves are constructed analytically for realistic gamma-ray burst remnants decelerating in either a homogeneous interstellar medium or a stellar wind env…
Can the jet steepen the light curves of GRB afterglow?
D. M. Wei, T. Lu
Beaming of relativistic ejecta in GRBs has been postulated by many authors in order to reduce the total GRB energy, thus it is very important to look for the observational evidence…
Gamma-ray bursts: afterglows from cylindrical jets
K. S. Cheng, Y. F. Huang, T. Lu
Nearly all previous discussion on beaming effects in GRBs have assumed a conical geometry. However, more and more observations on relativistic jets in radio galaxies, active galact…
Beam Energy Dependence of Fifth and Sixth-Order Net-proton Number Fluctuations in Au+Au Collisions at RHIC
STAR Collaboration, B. E. Aboona, J. Adam +357
We report the beam energy and collision centrality dependence of fifth and sixth order cumulants (, ) and factorial cumulants (, ) of net-proton and p…
Observational Effects of Strange Stars
T. Lu
In this talk, after briefly reviewing some historical remarks concerning strange stars, the achievements in physics and dynamical behavior of strange stars are discussed. Especiall…
Results on Elastic Cross Sections in Proton-Proton Collisions at GeV with the STAR Detector at RHIC
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +351
We report results on an elastic cross section measurement in proton-proton collisions at a center-of-mass energy GeV, obtained with the Roman Pot setup of the STAR e…
The prime spectrum and simple modules over the quantum spatial ageing algebra
V. V. Bavula, T. Lu
For the algebra in the title, its prime, primitive and maximal spectra are classified. The group of automorphisms of is determined. The simple unfaithful -modules and th…
A Possible Explanation of the Radio Afterglow of GRB980519: The Dense Medium Effect
X. Y. Wang, Z. G. Dai, T. Lu
GRB{980519} is characterized by its rapidly declining optical and X-ray afterglows. Explanations of this behavior include models invoking a dense medium environment which makes the…
A Generic Dynamical Model of Gamma-ray Burst Remnants
Y. F. Huang, Z. G. Dai, T. Lu
The conventional generic model is deemed to explain the dynamics of -ray burst remnants very well, no matter whether they are adiabatic or highly radiative. However, we find th…
Gamma-Ray Burst Afterglows from Realistic Fireballs
Z. G. Dai, Y. F. Huang, T. Lu
A GRB afterglow has been commonly thought to be due to continuous deceleration of a postburst fireball. Many analytical models have made simplifications for deceleration dynamics o…
The evolution of beamed GRB afterglow: non-relativistic case
D. M. Wei, T. Lu
There has been increasing evidence that at least some GRBs are emission beamed. The beamed GRB afterglow evolution has been discussed by several authors in the ultra-relativistic c…
Long-term Neutrino Afterglows from Gamma-Ray Bursts
Z. Li, Z. G. Dai, T. Lu
It is widely believed that multiwavelength afterglows of gamma-ray bursts (GRBs) originate from relativistic blast waves. We here show that in such blast waves, a significant fract…
Estimate of Background Baseline and Upper Limit on the Chiral Magnetic Effect in Isobar Collisions at GeV at the Relativistic Heavy-Ion Collider
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +342
For the search of the chiral magnetic effect (CME), STAR previously presented the results from isobar collisions (, ${^{96}_{40}\text{Z…
Overall Temporal Synchrotron Emissions from Relativistic Jets: Adiabatic and Radiative Breaks
Zhuo Li, Z. G. Dai, T. Lu
We discuss the GRB afterglow emission from a relativistic jet that is initially in the radiative regime in which the accelerated electrons are fast cooling. We note that such a ``s…
Reaction plane correlated triangular flow in Au+Au collisions at GeV
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +349
We measure triangular flow relative to the reaction plane at 3 GeV center-of-mass energy in Au+Au collisions at the BNL Relativistic Heavy Ion Collider. A significant signal…
Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at GeV
STAR Collaboration, M. S. Abdallah, B. E. Aboona +382
We report measurements of the longitudinal double-spin asymmetry, , for inclusive jet and dijet production in polarized proton-proton collisions at midrapidity and center-o…
Study of Central Exclusive Production of , and Pairs in Proton-Proton Collisions at GeV with the STAR Detector at RHIC
STAR Collaboration, B. E. Aboona, J. Adam +378
We report on the first measurement of the Central Exclusive Production process in proton-proton collisions: (where ) at the center-of…
Measurement of electrons from open heavy-flavor hadron decays in Au+Au collisions at GeV with the STAR detector
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +359
We report a new measurement of the production of electrons from open heavy-flavor hadron decays (HFEs) at mid-rapidity ( 0.7) in Au+Au collisions at G…
Search for the Chiral Magnetic Effect in Au+Au collisions at GeV with the STAR forward Event Plane Detectors
STAR Collaboration, B. E. Aboona, J. Adam +355
A decisive experimental test of the Chiral Magnetic Effect (CME) is considered one of the major scientific goals at the Relativistic Heavy-Ion Collider (RHIC) towards understanding…
Observation of Directed Flow of Hypernuclei H and H in = 3 GeV Au+Au Collisions at RHIC
STAR Collaboration, B. E. Aboona, J. Adam +338
We report here the first observation of directed flow () of the hypernuclei H and H in mid-central Au+Au collisions at = 3 GeV at RHIC. These…
Gamma-Ray Bursts: Polarization of Afterglows from Two-Component Jets
X. F. Wu, Z. G. Dai, Y. F. Huang +1
Polarization behaviors of optical afterglows from two-component gamma-ray burst jets are investigated, assuming various configurations for the two components. In most cases, the ob…