Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

N(2220) 9/2+I (J P ) = 21 ( 29 + ) Status:∗∗∗∗Older and obsolete values are listed and referenced in the 2014 edition, Chinese Physics C38 070001 (2014).

N(2220) POLE POSITIONREAL PARTVALUE (MeV)

DOCUMENT ID

TECNCOMMENT

2130 to 2200 (≈ 2150) OUR ESTIMATE
2131± 6
ROENCHEN 22 DPWA Multichannel
1 SVARC
2127± 3± 24
14 L+P
πN → πN
2150± 35
ANISOVICH
12A DPWA Multichannel
2160± 80
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •2171
ROENCHEN
2199
ARNDT
2135
HOEHLER
1 Fit to the amplitudes of HOEHLER 79.

15A DPWA Multichannel
06 DPWA π N → π N, η N
93 ARGD π N → π N−2×IMAGINARY PARTVALUE (MeV)

DOCUMENT ID

TECNCOMMENT

360 to 480 (≈ 400) OUR ESTIMATE
388± 6
ROENCHEN 22 DPWA Multichannel
1380± 7± 22
SVARC
14 L+P
πN → πN
440± 40
ANISOVICH
12A DPWA Multichannel
480± 100
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •593
ROENCHEN372
ARNDT400
HOEHLER
1 Fit to the amplitudes of HOEHLER 79.

15A DPWA Multichannel
06 DPWA π N → π N, η N
93 ARGD π N → π N

N(2220) ELASTIC POLE RESIDUEMODULUS r
VALUE (MeV)

DOCUMENT ID

TECNCOMMENT

35 to 60 (≈ 45) OUR ESTIMATE
48± 5
ROENCHEN 22 DPWA Multichannel
138± 1± 5
SVARC
14 L+P
πN → πN60± 12ANISOVICH
12A DPWA Multichannel
45± 20
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •62
ROENCHEN
33
ARNDT40
HOEHLER
1 Fit to the amplitudes of HOEHLER 79.

https://pdg.lbl.gov

Page 115A DPWA Multichannel
06 DPWA π N → π N, η N
93 ARGD π N → π N

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

PHASE θVALUE (◦ )DOCUMENT ID

TECNCOMMENT− 60 to − 10 (≈ − 40) OUR ESTIMATE− 13± 2
ROENCHEN 22 DPWA Multichannel
1− 52± 1± 14
SVARC
14 L+P
πN → πN− 58± 12ANISOVICH
12A DPWA Multichannel− 45± 25
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •− 59
ROENCHEN− 33
ARNDT− 50
HOEHLER
1 Fit to the amplitudes of HOEHLER 79.

15A DPWA Multichannel
06 DPWA π N → π N, η N
93 ARGD π N → π N

N(2220) INELASTIC POLE RESIDUE
The “normalized residue” is the residue divided by Γpole /2.

Normalized residue in N π → N(2220) → N η
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT0.042± 0.006− 48 ± 2
ROENCHEN 22 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.004− 101

ROENCHEN

15A DPWA Multichannel

Normalized residue in N π → N(2220) → Λ K
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.020± 0.003− 60 ± 2
ROENCHEN 22 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.007

62

ROENCHEN

15A DPWA Multichannel

Normalized residue in N π → N(2220) → Σ K
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.003± 0.008− 70 ± 2
ROENCHEN 22 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.009− 128

ROENCHEN

15A DPWA MultichannelN(2220) BREIT-WIGNER MASSVALUE (MeV)

DOCUMENT ID

2200 to 2300 (≈ 2250) OUR ESTIMATE
1 ARNDT
2316.3± 2.92230 ± 80
CUTKOSKY
2205 ± 10
HOEHLER
1 Statistical error only.

https://pdg.lbl.gov

Page 2

TECN068079

COMMENTDPWA π N → π N, η N
IPWA π N → π N
IPWA π N → π NCreated: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

N(2220) BREIT-WIGNER WIDTHVALUE (MeV)

DOCUMENT ID

TECN

350 to 500 (≈ 400) OUR ESTIMATE
1 ARNDT633± 17500± 150
CUTKOSKY
365± 30
HOEHLER
1 Statistical error only.

06
8079

COMMENTDPWA π N → π N, η N
IPWA π N → π N
IPWA π N → π N

N(2220) DECAY MODES
The following branching fractions are our estimates, not fits or averages.

Γ1ModeFraction (Γi /Γ)Nπ

15–30 %

N(2220) BRANCHING RATIOSΓ N π /Γtotal

Γ1 /ΓVALUE (%)

DOCUMENT ID

15 to 30 (≈ 25) OUR ESTIMATE
24 ± 5ANISOVICH
1 ARNDT24.6± 0.1
15 ± 3
CUTKOSKY18.0± 1.5
HOEHLER
1 Statistical error only.

TECN

12A
06
8079

COMMENTDPWA Multichannel
DPWA π N → π N, η N
IPWA π N → π N
IPWA π N → π N

N(2220) PHOTON DECAY AMPLITUDES AT THE POLE
N(2220) → p γ , helicity-1/2 amplitude A1/2
MODULUS (GeV−1/2 )PHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.357± 0.020− 91 ± 4ROENCHEN 22 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.135

114

ROENCHEN

15A DPWA MultichannelN(2220) → p γ , helicity-3/2 amplitude A3/2
MODULUS (GeV−1/2 )PHASE (◦ )DOCUMENT ID

TECNCOMMENT− 0.273± 0.025− 102 ± 3
ROENCHEN 22 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.082− 41ROENCHEN

15A DPWA MultichannelN(2220) REFERENCES
For early references, see Physics Letters 111B 1 (1982).
ROENCHEN
ROENCHEN
PDG
SVARC

2215A
1414

EPJ A58 229
EPJ A51 70
CP C38 070001
PR C89 045205

https://pdg.lbl.gov

D. Roenchen et al.
D. Roenchen et al.
K. Olive et al.
A. Svarc et al.

Page 3(JULI, GWU, BONN+)(PDG Collab.)(RBI Zagreb, UNI Tuzla)

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

ANISOVICH
ARNDT
HOEHLER
CUTKOSKY
Also
HOEHLER
Also

12A
06
938079EPJ A48 15
PR C74 045205
π N Newsletter 9 1Toronto Conf. 19
PR D20 2839
PDAT 12-1
Toronto Conf. 3

https://pdg.lbl.gov

A.V. Anisovich et al.
R.A. Arndt et al.
G. Hohler
R.E. Cutkosky et al.
R.E. Cutkosky et al.
G. Hohler et al.
R. KochPage 4(BONN, PNPI)(GWU)(KARL)(CMU, LBL) IJP(CMU, LBL) IJP(KARLT) IJP(KARLT) IJP

Created: 5/31/2024 10:12