Shakeel Ahmad. Research Collaboration. Research Highlights. Invited Talks Sessions Chaired

Transcription

1 Qualification M.Sc.(1981), Ph.D.(1986) - AMU. Designation Professor. Teaching 28 yrs. Research Experimental Particle Physics. Publications 33, in International Journals. Research Collaboration 1. Member of the ALICE Collaboration 2. Member of the India Neutrino Observatory(INO) Collaboration. 3. Member of the GRAPES-3(Gamma Ray Astronomy at PeV Energies) Collaboration(TIFR+Japan) Ph.D Supervision: One awarded, Four working M.Phil Supervision: Two awarded Research Highlights 1. Papers published in refereed International journals : Papers contributed to International symposia/seminars/conferences : Papers contributed to National symposia/seminars/conferences : Number of citations : 350 Invited Talks IX International Winter Workshop and School, Ooty, December VIII International Winter Workshop and School, Darjeeling, December Sessions Chaired VI Asian TRriangular Heavy-ion Conference, Delhi, February IX International Winter Workshop and School, Ooty, December VIII International Winter Workshop and School, Darjeeling, December 2013

2 Aspects undertaken in the Collaborations 1. At ALICE: Involved in the analysis of ALICE data on p-p, p-pb and Pb-Pb collisions to study 1) production of J/Ψ and 2) correlations and event-by event fluctuations. We are developing a method to extract rare events exhibiting large fluctuations in narrow phase space window from the huge data sample. Results have been presented in the PWG (Physics Working Group) meeting at CERN. 2. At INO: Working on the validation of INO-ICAL simulation code by studying the muon detection efficiency and its dependence on the strip width and muon angle. RPC simulation studies are also going on. 3. At GRAPES: Involved in the study of composition of Primary Cosmic Rays (PCR) by using the scintillator and muon detector data by sorting out the muon-rich and muon-poor events. This would help in distinguishing the charged particle or γ-ray initiated showers. We are doing simulations to obtain the energy spectrum of PCR due to individual nuclei by studying the muon-multiplicity distributions predicted by different Models. List of Publications Papers Published in International Journals 1. Event by event analysis of high multiplicity events produced in 158 A GeV/c 208 Pb 208 Pb collisions., Anuj Chandra, Ashwini Kumar, O. S. K. Chaturvedi, A. Ahmad, M. Zafar, M. Irfan and B. K. Singh Europhys. Lett. 112 (2015) , 2. A study of fluctuations of voids in relativistic ion-ion collisions., M.M. Khan, Shaista Khan, A. Khatun and M. Irfan Int. J. Mod. Phys. E24 (2015) , 3. A study of event-by-event fluctuations in relativistic heavy-ion collisions., M.M. Khan, Shaista Khan, A. Khatun and M. Irfan Int. J. Mod. Phys. E23 (2014) , 4. Search for long-range correlations in relativistic heavy-ion collisions at SPS energies., Anisa Khatun, Shaista Khan, A. Ahmad and M. Irfan Adv. in High Energy Phys. vol.2014 (2014), 5. A study of intermittence in heavy-ion collisions at relativistic energies. M.M. Khan,, N. Ahmad and M. Irfan Int. J. Mod. Phys. E23 (2014) Evidence of deconfined phase transition in multiparticle production in relativistic nuclear collisions. A. Kamal,, N. Ahmad and M. Irfan Int. J. Mod. Phys. E23 (2014) Short- and long-range multiplicity correlations in relativistic heavy-ion collisions., Anuj Chandra, M. Zafar and M. Irfan, A. Ahmad Int. J. Mod. Phys. E22 (2013) Forward-backward multiplicity fluctuations in 200A GeV/c 16 O-AgBr and 32 S-AgBr collisions., A. Ahmad, Anuj Chandra, M. Zafar and M. Irfan Phys. Scr. 87 (2013)

3 9. Entropy scaling in ion-ion collisions at AGS and SPS energies., Anuj Chandra, M. Zafar and M. Irfan, A. Ahmad Int. J. Mod. Phys. E22 (2013) DOI: /S Entropy analysis in relativistic heavy-ion collisions., A. Ahmad, Anuj Chandra, M. Zafar and M. Irfan Adv. in High Energy Phys. vol.2013 (2013) article id:836071, Charge fluctuations in pp and AA collisions at RHIC and LHC energies., M. Zafar, M. Irfan, A. Ahmad World J. Nucl. Sc. and Tech.2 (2012) 2000, Analysis beyond intermittency in multiparticle production in relativistic nuclear collisions. M.M. Khan,,N. Ahmad, M. Zafar and M. Irfan Int. J. Mod. Phys. E19 (2010), On multifractality and multifractal specific heat in ion-ion collisions. A.R. Khan, M. Zafar and M. Irfan Chaos, Solitions and Fractals 42 (2009), Multifractal structure in multiplicity distribution of particles produced in relativistic nuclear collisions. N. Ahmad,, M.M. Khan, A. kamal and A.R. Khan Int. J. Mod. Phys. E17 (2008), Signature of viod probability scaling in 28 Si-nucleus collisions. A.R. Khan, A. Kamal, A. Ahmad, M. Zafar and M. Irfan FIZIKA B16, (2007) Dynamical fluctuations and Levy stability in 14.5A GeV/c 28 Si-Nucleus interactions. M.M. Khan,, N. Ahmad, A.R. Khan, M. Zafar and M. Irfan Acta Phys. Pol. B38, (2007) Erratic fluctuations in 14.5A GeV/c 28 Si-AgBr collisions., M.M. Khan, N. Ahmad, A.R. Khan, M. Zafar and M. Irfan Heavy Ion Phys. 25, (2006) Emission of relativistic hadrons in the backward hemisphere in relativistic nuclear collisions. N. Ahmad,,M. M. Khan, M. Zafar and M. Irfan Int. J. Mod. Phys. E14, (2005) Cluster size dependence on relativistic charged particle multiplicity in nucleus-nucleus collisions. N. Ahmad, M.M. Khan,, M. Zafar and M. Irfan Int. J. Mod. Phys.,E14, (2005) Erraticity behaviour in relativistic nucleus-nucleus collisions., M.M. Khan, N. Ahmad and A. Ahmad J.Phys. GNucl & Part.Phys.30, 1145 (2004).

4 21. Erratic fluctuations in rapidity gaps in relativistic nucleus-nucleus collisions., M.M. Khan, N. Ahmad, M. Zafar and M. Irfan Acta Phys. Pol.B35, 809 (2004). 22. Intermittency in 4.5A and 14.5A GeV/c 28 Si-nucleus interactions. W. Bari, N. Ahmad, M. M. Khan,, M. Zafar and M. Irfan Int.J. Mod Phys. E11 (2002) Maximum charged particle density fluctuations in relativistic heavy-ion collisions., W. Bari, N. Ahmad, M. M. Khan, M. Zafar and M. Irfan Journal of Phys. Soc. of Jpn. 71 (2002) Cluster production in 14.5A GeV/c Si-nucleus interactions., W. Bari, N. Ahmad, A. R. Khan, M. Zafar, M. Irfan, A Tufail and A. Ahmad Int. J. Mod. Phys. E8, No. 2 (1999) On the characterstics of clusters produced on 400 GeV p-nucleon interactions. A. Shakeel, H. Khushnood, M. Irfan, A. Ahmad, A. H. Naqvi and M. Shafi J. Phys.Soc. Japan 55 (1986) Some interesting aspects of total disintegrations of heavy emulsion nuclei at high energies. H. Khushnood, A. Shakeel, M. Irfan, A. Ahmad, A. H. Naqvi and M. Shafi Canad. J. Phys. 64 (1986) Cluster size in 400 GeV proton-nucleus interactions. H. Khushnood, A. Shakeel, M. Irfan, A. Ahmad and M. Shafi J. Phys. Soc. Japan 54 (1985) Characterstics of clusters produced in particles nucleus interactions at 50 and 400 GeV. H. Khushnood, A. Shakeel, M. Irfan, and M. Shafi Canad. J. Phys. 63 (1985) Scaling of multiplicity distributions of charged particles in proton-nucleus interactions at 400 GeV. A. Shakeel, H. Khushnood, M. Irfan, U. Ali, A. Ahmad and M. Shafi Phys. Scr. 29 (1984) Determination of cluster size in particle nucleus interactions at 50 and 400 GeV. M. Irfan, H. Khushnood, A. Shakeel, M. Zafar and M. Shafi Phys.Rev. D30 (1984) Pseudorrapidity distribution and cluster formation in 50 and 400 GeV/c hadron-nucleus interactions. M. Irfan, H. Khushnood, A. Shakeel, A. R. Khan and M. Shafi Canad. J. Phys. 62 (1984) A study of high energy hadron-nucleus interactions. H. Khushnood, A. Shakeel, A. Ahmad and M. Z. Ahsan Canad. J. Phys. 61 (1983) Multiparticle production in 24, 50 and 400 GeV/c particle nucleus interactions. A. Shakeel, H. Khushnood, M. Irfan, M. Zafar, A. Ahmad and M. Shafi Nuovo Cim. 76A (1983) 699.

5 Papers Contributed in International/National Symposia/Conferences 1. Entropy scaling and thermalization in relativistic and ultra-relativistic heavy-ion collisions., Shaista Khan, M. Irfan 6 th Asian Triangle Heavy Ion Conference, IIC, New Delhi, Feb , Fluctuations of voids in relativistic ion-ion collisions at SPS energies. 60 th DAE-BRNS Symposium on Nuclear Physics, Prasanthi Nilayam, AP, Dec , On entropy in multiparticle production and multiplicity scaling. 60 th DAE-BRNS Symposium on Nuclear Physics, Prasanthi Nilayam, AP, Dec , Forward-backward multiplicity correlations in pp collisions at LHC energies. and Shaista khan 60 th DAE-BRNS Symposium on Nuclear Physics, Prasanthi Nilayam, AP, Dec , A search for dynamical fluctuations in 208 Pb- 208 Pb collisions at 158A GeV/c Ashwini Kumar,, B. K. Singh 60 th DAE-BRNS Symposium on Nuclear Physics, Prasanthi Nilayam, AP, Dec , Entropy analysis in relativistic ion-ion collisions., A. Khatun, Shaista Khan, T. Ahmad and A. Ahmad DAE Symposium on Nuclear Physics, Varanasi, Dec , Multifractality in multiparticle production in 4.5 and 14.5A GeV/c 28 Si-AgBr collisions. N. Ahmad,, M.M. Khan and Hushnud DAE Symposium on Nuclear Physics, Varanasi, Dec , Multiplicity distributions and correlations of secondary particles produced in 60, 200A GeV/c 16 O- nculeus interactions. M.M. Khan,, N. Ahmad, M.D. Azmi, Kushal Das, M. Irfan DAE Symposium on Nuclear Physics, Varanasi, Dec , Entropy production in 16 O-AgBr and 32 S-Gold collisions at 200A GeV/c. Anuj Chandra and A. Ahmad DAE Int. Symposium on Nuclear Physics, BARC, Mumbai, Dec.02-06, On multiplicity correlations in relativistic nuclear collisions. N. Ahmad, Hushnud, M.M.Khan, A. Kamal and A. Shakeel DAE Int. Symposium on Nuclear Physics, BARC, Mumbai, Dec.02-06, Forward-backward multiplicity correlations in 60A and 200A GeV/c O-AgBr Collisions. Anuj Chandra and A. Ahmad DAE Symposium on Nuclear Physics, Delhi, Dec , Forward-backward multiplicity fluctuations in relativistic ion-ion collisions. Anuj Chandra and A. Ahmad DAE Symposium on Nuclear Physics, Vishakhapatnam, Dec

6 13. Event-by-event charge fluctuations in pp and AA collisions at RHIC and LHC energies. VI Int. Conf. On Phys. and AstroPhys. of QGP., Goa, Dec , Jet quenching and event-by-event charge fluctuations in ion-ion collisions at RHIC and LHC energies. and A. Ahmad DAE Symposium on Nuclear Physics, Pilani Dec Analysis of individual high multiplicity 158A GeV/c 207 Pb- 207 Pb events., A. Ahmad, M. Zafar and M. Irfan DAE Symposium on Nuclear Physics, Roorki, Dec.22-26, A Monte Carlo study on net charge fluctuations in p(p) p collisions. XVIII DAE Symposium on High Energy Physics, Baroda, Dec11-15, Intermittency and multifractality in relativistic nuclear collisions. A. Kamal, M.M. Khan, N. Ahmad, M.D. Azmi, A. Masoodi,, M. Zafar and M. Irfan XVIII DAE Symposium on High Energy Physics, Baroda, Dec11-15, Chaotic behaviour in multiparticle production in relativistic nuclear collisions. M.M.Khan, Shakeel. Ahmad, N. Ahmad, A. Kamal, T. Ahmad, A.R.Khan, M. Zafar and M. Irfan International Conference on Physics and Astrophysics of QGP, VECC, Kolkata, Feb.08-12, Multifractal spectrum and Renyi dimensions. N. Ahmad, M.M.Khan, M.D. Azmi, Shakeel. Ahmad, M. Zafar and M. Irfan International Conference on Physics and Astrophysics of QGP, VECC, Kolkata, Feb.08-12, Multifractality in relativistic nuclear collisions. M.M. Khan, N. Ahmad, M.D. Azmi,, M. Zafar and M. Irfan. XVI DAE Symposium on High Energy Physics, SINP, Kolkata, Nov.29-Dec03, Multiplicity distribution in different rapidity windows in relativistic nuclear collisions. N. Ahmad, M.M. Khan, A. Kamal,, Tufail Ahmad and A.H. Naqvi. XVI DAE Symposium on High Energy Physics, SINP, Kolkata, Nov.29-Dec03, On spatial and event-by-event fluctuations in relativistic heavy-ion collisions XVII International Baldin Seminar on High Energy Physics Problems, Dubna Russia, Sept.27-Oct.02 (2004). 23. On erratic fluctuations in relativistic heavy ion collisions., M.M. Khan, M. Zafar and M. Irfan International Conference on High Energy Physics, Bejing China, August (2004) 24. Self similar fluctuations in relativistic heavy ion collisions., M.M. Khan, M. Zafar and M. Irfan Quark and Nuclear Physics Conference,QNP2004, Bloomington, Indiana USA, May (2004) 25. On event-by-event fluctuations in relativistic heavy-ion collisions., M.M. Khan, W. Bari, N. Ahmad, A.R. Khan, M. Zafar and M. Irfan VIII International conderence on Nucleus-Nucleus collisions, Mascow, Russia, June, (2003) 26. Some characteristics of particles produced in 3.7A GeV/c 16 O-nucleus collisions. N. Ahmad, M.M. Khan, M.D. Azmi and A. Ahmad DAE symposium on Nuclear Physics, Trinuveli (India), Dec (2002)

7 27. Study of non-statistical fluctuations of relativistic particles in relativistic nuclear collisions., M.A. Ahmad, M.M. Khan and M.D. Azmi XV DAE Symposium on High Energy Physics, Jammu University, Jammu (India), Nov., (2002) 28. Dpendence of Multifractality on Target Mass in relativistic nuclear collisions. M. M. Khan,, N. Ahmad, W. Bari, A. Tufail and A. H. Naqvi XV DAE Symposium on High Energy Physics, Jammu University, Jammu (India), Nov., (2002) 29. Fluctuations and Chaos in low multiplicity events in relativistic nucleus-nucleus collisions., A. Ahmad, A. R. khan, M. Zafar and M. Irfan XV DAE Symposium on High Energy Physics, Jammu University, Jammu (India), Nov., (2002) 30. Dominance of statistical fluctuations over erraticity behaviour in relativistic nuclear collisions., M.M. Khan, N. Ahmad, W. Bari, M. Zafar and M. Irfan International conderence on QUARK MATTER, Nantes, France, July, (2002) 31. Evidence of clustarization in Si-nucleus collisions at 14.5A GeV/c. N. Ahmad, W. Bari, M. M. Khan and. DAE Symposium on Nuclear Physics, SINP, Kolkata (India) Dec , (2001) 32. Multifractal analysis of multiparticle production at relativistic energies. W. bari, N. Ahmad, M. M. Khan and. DAE Symposium on Nuclear Physics, SINP, Kolkata (India) Dec , (2001). 33. Correlations and fluctuations in heavy-ion collisions., M. M. Khan, M. Zafar and M. Irfan. IV Int. Conf. On Phys. and AstroPhys. of QGP., Jaipur, November 26-30, Intermittency in relativistic heavy-ion collisions. W. bari, N. Ahmad, Tufail Ahmad, S. Ahmad and M. Zafar. IV Int. Conf. On Phys. and AstroPhys. of QGP., Jaipur, November 26-30, Multiplicity fluctuations in high energy heavy-ion collisions., W. bari, N. Ahmad, M. M. Khan, M. Zafar and M. Irfan. XIV High Energy Physics Symposium, Hyderabad, Dec , Multiparticle response of cathode pad chamber(cpc). SINP-ALIGARH-JAMMU Collaboration. DAE International symposium on Nuclear Physics, Mumbai (India) Dec , Design and fabrication of ultrathin cathode pad chamber(cpc). SINP-ALIGARH-JAMMU Collaboration. DAE International symposium on Nuclear Physics, Mumbai (India) Dec , Multifractals in relativistic heavy-ion collisions. W. Bari, M. M. Khan, N. Ahmad, and A. R. khan. DAE International Symposium on Nuclear Physics, Mumbai (India) Dec , Characterstics of events accompanied by hadrons in the backward hemisphere in relativistic nucleusnucleus collisions., W. Bari, N. Ahmad, A. Tufail and A. R. Khan. DAE Symposium on Nuclear Physics, Chandigarh (India) Dec , Correlations and fluctuations in high energy nuclear collisions., N. Ahmad, M. Zafar and M. Irfan. XIII High Energy Physics Symposium, Chandigarh, Dec , On cluster formation in relativistic heavy ion collisions.

8 , W. Bari, N. Ahmad, A. R. Khan A. Tufail and A. H. Naqvi. DAE Symposium on Nuclear Physics, Bangalore (India) Dec , Multiplicity and compound multiplicity distributions in 14.5A GeV/c Si-emulsion collisions., W. Bari, N. Ahmad, M. Zafar and M. Irfan. DAE Symposium on Nuclear Physics, Bangalore (India) Dec , On multiplicity scaling in high energy hadron and nucleus-nucleus collisions. A. Shakeel, A. R. Khan, A. Ahmad, A. H. Naqvi and A. Tufail. III Int. Conf. On Phys. and AstroPhys. of QGP., Jaipur, March 17-21, Multiparticle production in nucleus-nucleus collisions. A. Shakeel, N. Ahmad, M. Irfan, M. Zafar and A. Tufail. III Int. Conf. On Phys. and AstroPhys. of QGP., Jaipur, March 17-21, Multiplicity data on nucleus-nucleus collisions and KNO scaling. A. Shakeel, A. Ahmad and M. Irfan. DAE Symposium on Nuclear Physics, B.A.R.C., Bombay (India) Dec , Multiplicity distribution and their scaling in hadronic and heavy ion collisions. A. Shakeel, A. Ahmad and M. Irfan. IX High energy Physics Symp., Chennai, Dec. 5-9, Emission characteristics of slow particles produced in 400 GeV proton-nucleus interactions. A. Shakeel, M. Tariq, M. Irfan, and M. Shafi. 75th session of the Indian Science Congress Association, Pune, Jan. 3-8, On the mean normalized multiplicity and aditive quark model. A. Shakeel, A. Ahmad, M. Irfan, Tauseef Ahmad and M. Tariq. DAE Symposium on Nuclear Physics, B.A.R.C., Mumbai (India) Dec , Dynamics of multiparticle production in high energy hadron-nucleus collisions. A. Shakeel, H. Khushnood et al. 74th session of the Indian Science Congress Association, Bangalore, Jan. 3-8, A study of charged secondaries produced in hadron-emulsion interactions. H. Khushnood, A. Shakeel et al. 74th session of the Indian Science Congress Association, Bangalore, Jan. 3-8, 1987.

9 51. Hadronic multiplicity distributions and KNO scaling at FNAL, ISR and Collider energies. A. Shakeel, H. Khushnood, M. Irfan, T. Ahmad, M. Tariq and M. Shafi. VIII High Energy Physics Symp., Calcutta, Nov , Scaling behaviour of pions produced in hadron-hadron and hadron-nucleus collisions at GeV. A. Shakeel, A. H. Naqvi and M. Shafi. National Seminar on Particle Physics and Cosmology, Calcutta, March 10-13, Characterstics of Catastrophic disintegration of AgBr nuclei at high energies. H. Khushnood, A. R. Khan, A. Shakeel and M. Irfan. 10th International Sommer College, Nathiagali (pakistan), June 26 July 16, On the pseudorapidity of charged particles in 400 GeV proton-nucleus collisions. A. Shakeel, H. Khushnood, M. Irfan, A. Ahmad, A. H. Naqvi, A. R. Khan and M. Shafi. VII High Energy Physics Symp., Jammu, Oct. 8-13, Some aspects of proton-nucleus interactions at 400 GeV. H. Khushnood, A. Shakeel, M. Irfan, A. Ahmad, A. R. Khan and A. Naqvi. VII High Energy Physics Symp., Jammu, Oct. 8-13, Dispersion and pseudorapidity distribution of charged shower particles produced in high energy hadronnucleus interactions. A. Shakeel, H. Khushnood et al. 71st session of the Indian Science Congress Association, Ranchi, Jan. 3-8, Some characteristics of grey particles produced in high energy hadron-nucleus interactions. H. Khushnood, A. Shakeel et al. 71st session of the Indian Science Congress Association, Ranchi, Jan. 3-8, Some interesting features of high energy hadron-nucleus interactions. H. Khushnood, A. Shakeel, M. Irfan, A. Ahmad, Z. Ahmad A. R. Khan and M. Shafi. VI High Energy Physics Symp., Mysore Dec , Dependence of rapidity and rapidity gap distributions of charged shower particles on grey particle multiplicity. A. Shakeel and H. Khushnood, M. Irfan, M. Zafar, A. R. Khan and M. Shafi. VI High energy Physics symposium, Mysore Dec ,1982.