Bob Wadsworth
Professor

Profile

Career

BSc, PhD (Liverpool), CPhys, FInstP

Summary of expertise

  • Structure of exotic nuclei
  • Shape evolution and coexistence

Departmental roles

Chair, Board of Examiners

Research

Overview

Research group(s)

  • Dr Nara Singh
  • Dr Paul Davies
  • Mr Harith Al-Azri
  • Mr Daniel Bloor
  • Mr Adam Nichols

Publications

Full publications list

R WADSWORTH and others (27)\
High-spin intruder band in In-107
Physical Review C 81, 034303 (2010)

R WADSWORTH, and others (33) 
Lifetimes of odd-spin yrast states in Hg-182
Physical Review C 81, 014310 (2010)

R WADSWORTH and others (25)
Two-Particle Separation Energy Trends in the Superdeformed Well
Physical Review Letters 104, 162501 (2010)

D G JENKINS, R WADSWORTH and others (17)
Non-termination of yrast bands at maximum configuration spin in Kr-73
Physical Review C 81, 054307 (2010)

R WADSWORTH, and others (28) 
Shape coexistence at the proton drip-line: First identification of excited states in Pb-180
Physical Review C 82, 011303(R) (2010)

E S PAUL, J P REVILL, M MUSTAFA, R WADSWORTH, et al.
High-spin states in Ce-127 and Ce-129: Further evidence for triaxial nuclear shapes
Physical Review C 80, 054312 (NOV 2009)

J PAKARINEN, A N ANDREYEV, R JULIN, R WADSWORTH, et al.
Evidence for prolate structure in light Pb isotopes from in-beam gamma-ray spectroscopy of Pb-185
Physical Review C 80, 031303 (SEP 2009)

M PETRI, E S PAUL, P J NOLAN, R WADSWORTH, et al.
The use of EXOGAM for in-beam spectroscopy of proton drip-line nuclei with radioactive ion beams
Nuclear Instruments & Methods in Physics Research Section A - Accelerators Spectrometers Detectors and Associated Equipment, Volume: 607, Issue: 2,
Pages: 412-420 (AUG 2009)

R ORLANDI, G DE ANGELIS, P G BIZZETI, R WADSWORTH, et al.
Coherent Contributions to Isospin Mixing in the Mirror Pair As-67 and Se-67
Physical Review Letters 103, 052501 (JUL 2009)

T GRAHN, A PETTS, M SCHECK, R WADSWORTH, et al.
Evolution of collectivity in Hg-180 and Hg-182
Physical Review C 80, 014324 (JUL 2009)

R STEVENSON, R J STOKES, D MACMILLAN, R WADSWORTH, et al.
In situ detection of pterins by SERS
Analyst, Volume: 134, Issue: 8, Pages: 1561-1564 (2009)

WIEDEMANN K T, MEDINA N H, DE ANGELIS G, R WADSWORTH, et al.
As-67-Se-67 mirror pair spectroscopy
Nuclear Physics 2008 - XXXI Workshop on Nuclear Physics in Brazil, AIP Conference Proceedings, Volume: 1139, Pages: 115-118 (2009)

M P CARPENTER, F G KONDEV, R V F JANSSENS, R WADSWORTH, et al.
Studies of neutron-deficient nuclei near the Z=82 shell closure via cold fusion reactions
Fusion 08, AIP Conference Proceedings, Volume: 1098, Pages: 58-63 (2009)

A PETTS, P A BUTLER, T GRAHN, R WADSWORTH, et al.
Lifetime measurements and Coulomb excitation of light Hg nuclei
Capture Gamma-Ray Spectroscopy and Related Topics, AIP Conference Proceedings, Volume: 1090, Pages: 414-418 (2009)

R WADSWORTH, B S N SINGH, A N STEER, et al.
The Northwest Frontier: Spectroscopy of N similar to Z nuclei below mass 100
Acta Physica Polonica B, Volume: 40, Issue: 3, Pages: 611-620 (MAR 2009)

P L MARLEY, D G JENKINS, N S PATTABIRAMAN, R WADSWORTH et al.
Heavy ion radiative capture of C-12+C-12
International Journal of Modern Physics E-Nuclear Physics, Volume: 17, Issue: 10, Pages: 2040-2043 (NOV 2008)

O STEZOWSKI, D GUINET, P LAUTESSE, R WADSWORTH, et al.
Gamma-ray spectroscopy of proton drip-Line nuclei in the A similar to 1.30 region using SPIRAL beams
Nuclear Physics And Astrophysics, AIP Conference Proceedings, Volume: 1072, Pages: 166-171 (2008)

T SUZUKI, G RAINOVSKI, T KOIKE, R WADSWORTH, et al.
Lifetime measurement of candidate chiral doublet bands in the Rh-103,Rh-104 isotopes with the recoil-distance Doppler-shift method in inverse kinematics
Physical Review C 78, 031302 (SEP 2008)

F JOHNSTON-THEASBY, A V AFANASJEV, C ANDREOIU, R WADSWORTH,  et al.
Deformation of rotational structures in Kr-73 and Rb-74: Probing the additivity principle at triaxial shapes
Physical Review C 78, 034312 (SEP 2008)

N S PATTABIRAMAN, D G JENKINS, M A BENTLEY, R WADSWORTH, et al.
Analog E1 transitions and isospin mixing
Physical Review C 78, 024301 (AUG 2008)

T GRAHN, A DEWALD, M B GOMEZ HORNILLOS, R WADSWORTH, et al.
Probing collectivity in the vicinity of neutron deficient Pb nuclei
Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR 2, AIP Conference Proceedings, Volume: 1012, Pages: 260-264 (2008)

J PAKARINEN, A N ANDREYEV, S ANTALIC, R WADSWORTH, et al.
Evidence for a strongly-coupled band in very neutron-deficient odd-mass nucleus Pb-185
Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR 2, AIP Conference Proceedings, Volume: 1012, Pages: 413-415 (2008)

E CLEMENT, A GORGEN, W KORTEN, R WADSWORTH, et al.
A new device for combined Coulomb excitation and isomeric conversion electron spectroscopy with fast fragmentation beams
Nuclear Instruments & Methods in Physics Research Section A - Accelerators Spectrometers Detectors and Associated Equipment, Volume: 587, Issue: 2-3, Pages: 292-299 (MAR 2008)

J J VALIENTE-DOBON, C E SVENSSON, A V AFANASJEV, R WADSWORTH, et al.
Low-spin lifetime measurements in Kr-74
Physical Review C 77, 024312 (FEB 2008)

B CEDERWALL, B HADINIA, M SANDZELIUS, R WADSWORTH, et al.
Evidence for enhanced collectivity in Te-I-Xe nuclei near the N=Z=50 double shell closure
Proton Emitting Nuclei and Related Topics, AIP Conference Proceedings, Volume: 961, Pages: 156-162 (2007)

R ORLANDI, G DE ANGELIS, F DELLA VEDOVA, R WADSWORTH, et al.
B(E1) stirengths and isospin symmetry in As-67 and Se-67
Proton Emitting Nuclei And Related Topics, AIP Conference Proceedings, Volume: 961, Pages: 190-195 (2007)

D G JENKINS, B R FULTON, P MARLEY, R WADSWORTH, et al.
Decay strength distributions in C-12(C-12,gamma) radiative capture
Physical Review C 76, 044310 (OCT 2007)

B S N SINGH, A N STEER, D G JENKINS, R WADSWORTH, et al.
Recoil Beta Tagging: Application to the study of odd-odd near proton drip line nuclei, Rb-74 and Y-78
European Physical Journal-Special Topics, Volume: 150, Pages: 147-148 (NOV 2007)

R WADSWORTH and others (26).
Nuclear levels in proton-unbound 109I: Relative single-particle energies beyond the proton drip line
Phys. Rev. C 76 054301 (2007)

D G JENKINS, B R FULTON, P MARLEY, S P FOX, R GLOVER, R WADSWORTH, D L WATSON and others (22).
Decay strength distributions in 12C(12C,g) radiative capture
Phys. Rev. C 76 044310 (2007)

R WADSWORTH and others (30).
Identification of Excited States in the Tz = 1 Nucleus 110Xe: Evidence for Enhanced Collectivity near the N = Z = 50 Double Shell Closure
Phys Rev Lett. 99 022501 (2007)

J R BROWN, F JOHNSTON-THEASBY, B S NARA SINGH AND R WADSWORTH and others (28).
Low-spin collective behavior in the transitional nuclei 86,88Mo
Phys. Rev. C 76 014307 (2007)

R A WYSS, P J DAVIES, W SATULA AND R WADSWORTH
Contrasting behavior in the rotational structure of the T-z=1/2 nuclei Kr-73 and Rb-75: A possible fingerprint of T=0 neutron-proton pairing correlations
Phys. Rev. C 76 011301 (2007) (5 pages)

SP FOX, B R FULTON, R WADSWORTH, and others (19)
First results on double beta-decay modes of Cd, Te, and Zn isotopes
Phys. Rev. C 76 025501 (2007) (7 pages)

B S N SINGH, D G JENKINS, R WADSWORTH, M A BENTLEY, P J DAVIES, and others (24) 
Coulomb shifts and shape changes in the mass 70 region
Phys. Rev. C 75 061301 (2007) (4 pages)

P JOSHI, M P CARPENTER, D B FOSSAN, T KOIKE, E S PAUL, G RAINOVSKI, K STAROSTA, C VAMAN AND R WADSWORTH
Effect of gamma softness on the stability of chiral geometry: Spectroscopy of Ag-106
Phys. Rev. Lett. 98 102501 (2007) (4 pages)

D JENKINS, P JOSHI, R WADSWORTH and others (24)
High-spin lifetime measurements in the N=Z nucleus Kr-72
Phys. Rev. C 75 041301 (2007) (5 pages)

D G JENKINS, CJ BARTON, R WADSWORTH, and others (43)
Measurement of the sign of the spectroscopic quadrupole moment for the 2(1)(+) state in Se-70: No evidence for oblate shape
Phys. Rev. Lett. 98 072501 (2007) (4 pages)

P J DAVIES, R WADSWORTH, D G JENKINS, P JOSHI, and others (20) 
Identification of the G(/2)(9) proton and neutron band crossing in the N = Z nucleus Sr-76
Phys. Rev. C 75 011302 (2007) (5 pages)

R WADSWORTH and others (24) 
Investigation of nuclear collectivity in the neutron mid-shell nucleus Pb-186
Phys. Rev. C 75 014302 (2007) (18 pages)

R WADSWORTH, and others (14)
Excited states and signature inversion in Cs-116
Phys. Rev. C 74 034310 (2006) (10 pages)

D G JENKINS, B S N SINGH, R WADSWORTH, and others (26)
Recoil-beta tagging: A novel technique for studying proton-drip-line nuclei
Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. 565 630-636 (2006) (7 pages)

D JENKINS, P JOSHI, R WADSWORTH and others (23) 
Lifetime measurements in N=Z Kr-72
Phys. Scr. T125 127-129 (2006) (3 pages)

R WADSWORTH, P JOSHI, and others (40)
Probing the maximally deformed light rare-earth region around the drip-line nucleus Sm-130
Phys. Scr. T125 214-215 (2006) (2 pages)

R WADSWORTH, and others (21)
First observation of excited states in Cs-114: Spectroscopy of the yrast nu(h(11/2))circle times pi(h(11/2)) band
Phys. Rev. C 73 061303 (2006) (5 pages)

J. PAKARINEN, F. JOHNSTON-THEASBY, R. WADSWORTH, and others (21).
Probing the three shapes in Pb-186 using in-beam gamma- ray spectroscopy.
European Phys. J. A 25, 449-450 (2005).

J. J. VALIENTE-DOBON, D. JENKINS, F. JOHNSTON-THEASBY, P. JOSHI, R. WADSWORTH, and others (40).
Evidence for nontermination of rotational bands in Kr- 74.
Phys. Rev. Lett. 95, 232501 (2005). [ external link ]

B. HADINIA, R. WADSWORTH, and others (28).
First identification of excited states in Te-106 and evidence for isoscalar-enhanced vibrational collectivity.
Phys. Rev. C 72, 041303 (2005). [ external link ]

T. KOIKE, P. JOSHI, R. WADSWORTH, and others (7).
Recent progress on the investigation of spontaneous formation of chirality in rotating nuclei.
J. Phys. G-Nuclear Particle Physics 31, S1741-S1746 (2005).

P. JOSHI, R. WADSWORTH, and others (9).
Evidence for a new region of chirality around A similar to 104.
J. Phys. G-Nuclear Particle Physics 31, S1895-S1898 (2005).

J. F. SMITH, R. WADSWORTH, and others (22).
First observation of very neutron-deficient Ce-122.
Phys. Lett. B 625, 203-211 (2005).

A. J. SIMONS, R. WADSWORTH, D. G. JENKINS, and others (17).
Investigation of antimagnetic rotation in light Cadmium nuclei, Cd-106,Cd-108.
Phys. Rev. C 72, 024318 (2005). [ external link ]

J. PAKARINEN, F. JOHNSTON-THEASBY, R. WADSWORTH, and others (23).
Evidence for oblate structure in Pb-186.
Phys. Rev. C 72, 011304 (2005). [ external link ]

A. J. SIMONS, P. JOSHI, D. G. JENKINS, R. WADSWORTH, and others (14).
Evidence for chiral structures in Cs-130.
J. Phys. G-Nuclear Particle Physics 31, 541-552 (2005).

D. SOHLER, P. JOSHI, R. WADSWORTH, D. G. JENKINS, and others (25).
High-spin structure of Ru-102.
Phys. Rev. C 71, 064302 (2005). [ external link ]

P. JOSHI, R. WADSWORTH, and others (12).
First evidence for chirality in Tc isotopes, Spectroscopy of Tc-100.
European Phys. J. A 24, 23-29 (2005).

J. J. VALIENTE-DOBON, D. JENKINS, F. JOHNSTON-THEASBY, P. JOSHI, R. WADSWORTH, and others (38).
High-spin rotational structures in Kr-76.
Phys. Rev. C 71, 034311 (2005). [ external link ]

S. LALKOVSKI, P. JOSHI, R. WADSWORTH, and others (12).
Quasi-gamma band and odd-even staggering effect in Ru- 102.
Phys. Rev. C 71, 034318 (2005). [ external link ]

A. GORGEN, P. DAVIES, S. P. FOX, D. G. JENKINS, F. JOHNSTON-THEASBY, P. JOSHI, R. WADSWORTH, and others (32).
Shape coexistence in light krypton isotopes.
Acta Physica Polonica B 36, 1281-1288 (2005).

J. J. VALIENTE-DOBON, D. JENKINS, F. JOHNSTON-THEASBY, P. JOSHI, R. WADSWORTH, and others (30).
Lifetimes of high-spin states in Kr-76.
Acta Physica Polonica B 36, 1339-1342 (2005).

P. M. RADDON, D. G. JENKINS, R. WADSWORTH, and others (22).
alpha decay and recoil decay tagging studies of Tl-183.
Phys. Rev. C 70, 064308 (2004). [ external link ]

B. HADINIA, R. WADSWORTH, and others (25).
First identification of gamma-ray transitions in Te- 107.
Phys. Rev. C 70, 064314 (2004). [ external link ]

A. N. ANDREYEV, R. WADSWORTH, and others (10).
GEANT Monte Carlo simulations for the GREAT spectrometer.
Nuclear Instruments & Methods Phys. Research Section A- Accelerators Spectrometers Detectors Associated Equipment 533, 422-434, 2004).

J. TIMAR, P. JOSHI, R. WADSWORTH, D. G. JENKINS, and others (27).
Experimental evidence for chirality in the odd-A Rh- 105.
Phys. Lett. B 598, 178-187 (2004).

P. JOSHI, D. G. JENKINS, R. WADSWORTH, and others (25).
Stability of chiral geometry in the odd-odd Rh isotopes, spectroscopy of Rh-106.
Phys. Lett. B 595, 135-142 (2004).

W. F. MUELLER, D. JENKINS, R. WADSWORTH, and others (28).
High-spin states in Au-179, Spectroscopy of shape- driving orbitals beyond the neutron midshell.
Phys. Rev. C 69, 064315 (2004). [ external link ]

P. T. GREENLEES, D. G. JENKINS, R. WADSWORTH, and others (43).
In-beam spectroscopy at the RITU gas-filled recoil separator.
European Phys. J. A 20, 87-92 (2004).

N. S. KELSALL, D. G. JENKINS, R. WADSWORTH, and others (33).
High-spin structure of N similar or equal to Z nuclei around the A=72 region.
European Phys. J. A 20, 131-132 (2004).

C. D. O'LEARY, R. WADSWORTH, D. G. JENKINS, and others (27).
High-spin study of rotational structures in Br-72.
Phys. Rev. C 69, 034316 (2004). [ external link ]

J. F. SMITH, R. WADSWORTH, and others (19).
High-spin spectroscopy and quasiparticle alignments in Ce-124,Ce-125.
Phys. Rev. C 69, 034339 (2004). [ external link ]

G. RAINOVSKI, D. G. JENKINS, R. WADSWORTH, and others (19).
Planar and aplanar tilted bands in the odd-odd nucleus Cs-132.
J. Phys. G-Nuclear Particle Physics 29, 2763-2775 (2003).

A. J. SIMONS, R. WADSWORTH, D. G. JENKINS, and others (16).
Evidence for a new type of shears mechanism in Cd-106.
Phys. Rev. Lett. 91, 162501 (2003). [ external link ]

E. S. PAUL, R. WADSWORTH, and others (13).
Magnetic dipole bands in Pr-133.
Nuclear Phys. A 727, 207-219 (2003).

G. RAINOVSKI, D. G. JENKINS, R. WADSWORTH, and others (19).
Candidate chiral twin bands in the odd-odd nucleus Cs- 132, Exploring the limits of chirality in the mass A approximate to 130 region.
Phys. Rev. C 68, 024318 (2003). [ external link ]

R. D. PAGE, D. G. JENKINS, R. WADSWORTH, and others (20).
The GREAT spectrometer.
Nuclear Instruments & Methods Phys. Research Section B-Beam Interactions Materials Atoms 204, 634-637 (2003).

C. D. O'LEARY, R. WADSWORTH, and others (18).
Evidence for isovector neutron-proton pairing from high- spin states in N=Z Rb-74.
Phys. Rev. C 67, 021301 (2003). [ external link ]

R. JULIN, D. G. JENKINS, R. WADSWORTH, M. J. TAYLOR, and others (35).
In-beam studies of very neutron-deficient heavy nuclei.
European Phys. J. A 15, 189-193 (2002).

G. RAINOVSKI, D. G. JENKINS, R. WADSWORTH, and others (23).
Shape coexistence at high spin in the N = Z+2 nucleus Se-70.
J. Phys. G-Nuclear Particle Physics 28, 2617-2625 (2002).

A. N. WILSON, D. G. JENKINS, R. WADSWORTH, and others (22).
Observation of excited states in the near-drip-line nucleus Pr-125.
Phys. Rev. C 66, 021305 (2002). [ external link ]

D. G. JENKINS, R. WADSWORTH, and others (25).
Confirmation of triple shape coexistence in Hg-179, Focal plane spectroscopy of the alpha decay of Pb-183.
Phys. Rev. C 66, 011301 (2002). [ external link ]

H. J. CHANTLER, D. G. JENKINS, R. WADSWORTH, and others (22).
Signature inversion in doubly odd La-124.
Phys. Rev. C 66, 014311 (2002). [ external link ]

R. WADSWORTH AND P. J. NOLAN.
The influence of microscopic structures on rotational motion in nuclei.
Reports On Progress Phys. 65, 1079-1118 (2002).

D. G. JENKINS, R. WADSWORTH, and others (21).
T=0 and T=1 states in the odd-odd N=Z nucleus, Br- 70(35)35.
Phys. Rev. C 65, 064307 (2002). [ external link ]

E. S. PAUL, R. WADSWORTH, and others (22).
Core-excited smoothly terminating band in Xe-114.
Phys. Rev. C 65, 051308 (2002). [ external link ]

N. S. KELSALL, D. G. JENKINS, R. WADSWORTH, and others (27).
Testing mean-field models near the N=Z line, gamma-ray spectroscopy of the T-z=1/2 nucleus Kr-73.
Phys. Rev. C 65, 044331 (2002). [ external link ]

R. W. LAIRD, R. WADSWORTH, and others (27).
Quadrupole moments of highly deformed structures in the A similar to 135 region, Probing the single-particle motion in a rotating potential.
Phys. Rev. Lett. 88, 152501 (2002). [ external link ]

A. GORGEN, R. WADSWORTH, and others (17).
Excited structure with a very extended shape in Cd-108.
Phys. Rev. C 65, 027302 (2002). [ external link ]

D. G. JENKINS, R. WADSWORTH, and others (11).
Stability of oblate shapes in the vicinity of N = Z=34 Se-68, Bands in Se-69 and As-67.
Phys. Rev. C 64, 064311 (2001). [ external link ]

M. KACI, R. WADSWORTH, and others (28).
Multiparticle excitations in Pb-194.
Nuclear Phys. A 697, 3-24 (2002).

R. M. CLARK, R. WADSWORTH, and others (17).
Very extended shapes in the A similar to 110 region.
Phys. Rev. Lett. 8720, 202502 (2001).

C. J. CHIARA, R. WADSWORTH, and others (17).
Spectroscopy in the Z=49 In-118,In-110 isotopes, Lifetime measurements in shears bands.
Phys. Rev. C 64, 054314 (2001). [ external link ]

M. MUIKKU, D. G. JENKINS, M. J. TAYLOR, R. WADSWORTH, and others (22).
Shape coexistence in Tl-183.
Phys. Rev. C 64, 044308 (2001). [ external link ]

M. A. RILEY, R. WADSWORTH, and others (27).
Global lifetime measurements of highly-deformed and other rotational structures in the A similar to 135 light rare- earth region, Probing the single-particle motion in a rotating potential.
Acta Physica Polonica B 32, 2683-2695 (2001).

D. J. HARTLEY, R. WADSWORTH, and others (26).
Detailed spectroscopy of the chiral-twin candidate bands in Pm-136.
Phys. Rev. C 64, 031304 (2001). [ external link ]

I. H. LAZARUS, R. WADSWORTH, and others (17).
The GREAT triggerless total data readout method.
IEEE Trans. On Nuclear Science 48, 567-569 (2001).

N. S. KELSALL, R. WADSWORTH, and others (13).
Consequences of neutron-proton pairing correlations for the rotational motion of the N=Z nucleus Kr-72.
Phys. Rev. C 64, 024309 (2001). [ external link ]

E. S. PAUL, R. WADSWORTH, and others (14).
Measurement of transition quadrupole moments of high-spin states in the N=74 isotones Pr-133,Ce-132 and La- 131.
Nuclear Phys. A 690, 341-354 (2001).

A. N. WILSON, R. WADSWORTH, and others (17).
High-spin structures and alignment properties in Ce- 126.
Phys. Rev. C 63, 054307 (2001). [ external link ]

A. N. WILSON, R. WADSWORTH, and others (27).
Magnetic dipole bands in Hg-190, first evidence of excitations across the Z=82 sub-shell in Hg nuclei.
Phys. Lett. B 505, 6-14 (2001).

R. JULIN, R. WADSWORTH, M. J. TAYLOR, and others (30).
Probing structures of exotic heavy nuclei.
Acta Physica Polonica B 32, 645-655 (2001).

F. HANNACHI, R. WADSWORTH, and others (26).
Collective excitations in the superdeformed well.
Acta Physica Polonica B 32, 1083-1088 (2001).

J. G. NARRO, R. WADSWORTH, and others (31).
Fermi superallowed beta(+) decays and T=1 ground states of heavy odd-odd N=Z nuclei.
Phys. Rev. C 63, 044307 (2001). [ external link ]

A. KORICHI, R. WADSWORTH, and others (26).
Linear polarization measurement of interband transitions in superdeformed Hg-190, Model-independent evidence for octupole vibrational structures.
Phys. Rev. Lett. 86, 2746-2749 (2001).

A. GORGEN, R. WADSWORTH, and others (24).
Magnetic rotation in Pb-197 and Pb-198.
Nuclear Phys. A 683, 108-144 (2001).

J. F. SMITH, R. WADSWORTH, and others (15).
Identification of excited states in Cs-117, Systematics of the nu(h(11/12))(2) alignment.
Phys. Rev. C 63, 024319 (2001). [ external link ]

 

Bob Wadsworth

Department of Physics
University of York
Heslington
York
YO10 5DD
U.K.

Tel: +44 (0)1904 322242
Fax: +44 (0)1904 322214

bob.wadsworth@york.ac.uk

Room P/S021