$\eta$-nucleus interaction from the $d+d$ reaction around the $\eta$ production threshold

Ikeno, N.; Nagahiro, H.; Jido, D.; Hirenzaki, S.

doi:10.1140/epja/i2017-12381-7

$\eta$ -nucleus interaction from the $d+d$ reaction around the $\eta$ production threshold

N. Ikeno
(
- Tottori U.
)
,
H. Nagahiro
(
- Nara Women's U. and
- Osaka U., Res. Ctr. Nucl. Phys.
)
,
D. Jido
(
- Tokyo Metropolitan U.
)
,
S. Hirenzaki
(
- Nara Women's U.
)

Aug 25, 2017

14 pages

Published in:

Eur.Phys.J.A 53 (2017) 10, 194

Published: Oct 11, 2017

e-Print:

1708.07692 [nucl-th]

DOI:

10.1140/epja/i2017-12381-7

View in:

pdf

reference search23 citations

Citations per year

Abstract: (Springer)

The

\eta

mesic nucleus is considered to be one of the interesting exotic many-body systems and has been studied since the 1980s theoretically and experimentally. Recently, the formation of the

\eta

mesic nucleus in the fusion reactions of the light nuclei such as

d + d \rightarrow (\eta + \alpha) \rightarrow X

has been proposed and the experiments have been performed by WASA-at-COSY. We develop a theoretical model to evaluate the formation rate of the

\eta

mesic nucleus in the fusion reactions and show the calculated results. We find that the

\eta

bound states could be observed in the reactions in cases with the strong attractive and small absorptive

\eta

-nucleus interactions. We compare our results with existing data of the

d + d \rightarrow \eta + \alpha

and the

d + d \rightarrow {}^{3}He + N + \pi

reactions. We find that the analyses by our theoretical model with the existing data can provide new information on the

\eta

-nucleus interaction.

Note:

14 pages, 31 figures, 1 table, submitted to EPJA

threshold: production
fusion
many-body problem
light nucleus
bound state: formation
meson: bound state
form factor: transition
mesic atom
eta(958): bound state
symmetry: chiral

References(55)

Figures(31)

[1]

Formation of an $\eta$ Mesic Nucleus

Q. Haider
(
- Los Alamos
)
,
L.C. Liu
(
- Los Alamos
)

- Phys.Lett.B 172 (1986) 257-260,
- Phys. Lett. B172 ( 1986) 257-260
•
DOI:
- 10.1016/0370-2693(86)90846-4

[2]

Signature for the Existence of $\eta$ Mesic Nucleus

L.C. Liu
(
- Los Alamos
)
,
Q. Haider
(
- Los Alamos
)

- Phys.Rev.C 34 (1986) 1845-1854,
- Phys. Rev. C34 ( 1986) 1845-1854
•
DOI:
- 10.1103/PhysRevC.34.1845

[3]

Search for Bound States of the $\eta$ Meson in Light Nuclei

et al.

- Phys.Rev.Lett. 60 (1988) 2595-2598
•
DOI:
- 10.1103/PhysRevLett.60.2595

[4]

Identification of the $D + P \to ^{3}$ He + $\eta$ Reaction Very Near Threshold: Cross-section and Deuteron Tensor Analyzing Power

et al.

- Phys.Rev.Lett. 61 (1988) 919-922
•
DOI:
- 10.1103/PhysRevLett.61.919

[5]

Low-energy $\eta$ Production in ( $\pi^+$ , $P$ ) and ( $\gamma$ , $P$ ) Reactions on $^{12}$ C

- Phys.Lett.B 231 (1989) 219-223
•
DOI:
- 10.1016/0370-2693(89)90202-5

[6]

Pion induced eta production on nuclei

- Nucl.Phys.A 519 (1990) 755-772
•
DOI:
- 10.1016/0375-9474(90)90434-N

[7]

The Width of bound eta in nuclei

- Phys.Rev.C 44 (1991) 738-746,
- Phys. Rev. C44 (1991) 738-746 and Valencia Univ. - IFIC-90-29 (90,rec.Aug.) 21 p
•
DOI:
- 10.1103/PhysRevC.44.738

[8]

A Possible method of observing eta nuclei

- Bull.Lebedev Phys.Inst. 1991N4 (1991) 21-24,
- Kratk.Soobshch.Fiz. 4 (1991) 23-26,
- Bull.Lebedev Phys.Inst. 4 (1991) 21-24

[9]

Search for eta mesic nuclei in photoproduction processes at LPI

- Fizika B 8 (1999) 85-90
•
e-Print:
- nucl-ex/9905006

[10]

Search for an eta bound state in pion double charge exchange on O-18

et al.

- Phys.Rev.C 47 (1993) 2571-2573
•
DOI:
- 10.1103/PhysRevC.47.2571

[11]

S wave interactions of anti-K and eta mesons in nuclear matter

T. Waas
(
- Munich, Tech. U.
)
,
W. Weise
(
- Munich, Tech. U.
)

- Nucl.Phys.A 625 (1997) 287-306
•
DOI:
- 10.1016/S0375-9474(97)00487-9

[12]

Are eta and omega nuclear states bound?

Kazuo Tsushima
(
- Adelaide U.
)
,
Ding-Hui Lu
(
- Adelaide U.
)
,
Anthony William Thomas
(
- Adelaide U.
)
,
K. Saito
(
- Tohoku Coll., Pharmacy
)

- Phys.Lett.B 443 (1998) 26-32
•
e-Print:
- nucl-th/9806043
•
DOI:
- 10.1016/S0370-2693(98)01336-7

[13]

omega - nucleus bound states in the Walecka model

K. Saito
(
- Tohoku Coll., Pharmacy
)
,
Kazuo Tsushima
(
- Adelaide U.
)
,
Ding-Hui Lu
(
- Adelaide U.
)
,
Anthony William Thomas
(
- Adelaide U.
)

- Phys.Rev.C 59 (1999) 1203-1206
•
e-Print:
- nucl-th/9807028
•
DOI:
- 10.1103/PhysRevC.59.1203

[14]

Formation of eta mesic nuclei using the recoilless (d,He-3) reaction

- Eur.Phys.J.A 6 (1999) 99-105
•
e-Print:
- nucl-th/9806012
•
DOI:
- 10.1007/s100500050322

[15]

Eta in the nuclear medium within a chiral unitary approach

T. Inoue
(
- Valencia U. and
- Valencia U., IFIC
)
,
E. Oset
(
- Valencia U. and
- Valencia U., IFIC
)

- Nucl.Phys.A 710 (2002) 354-370
•
e-Print:
- hep-ph/0205028
•
DOI:
- 10.1016/S0375-9474(02)01167-3

[16]

eta bound states in nuclei

C. Garcia-Recio
(
- Granada U.
)
,
J. Nieves
(
- Granada U.
)
,
T. Inoue
(
- Valencia U. and
- Valencia U., IFIC
)
,
E. Oset
(
- Valencia U. and
- Valencia U., IFIC
)

- Phys.Lett.B 550 (2002) 47-54
•
e-Print:
- nucl-th/0206024
•
DOI:
- 10.1016/S0370-2693(02)02960-X

[17]

Medium effects to N(1535) resonance and eta mesic nuclei

D. Jido
(
- Valencia U., IFIC
)
,
H. Nagahiro
(
- Nara Women's U.
)
,
S. Hirenzaki
(
- Valencia U., IFIC and
- Nara Women's U.
)

- Phys.Rev.C 66 (2002) 045202
•
e-Print:
- nucl-th/0206043
•
DOI:
- 10.1103/PhysRevC.66.045202

[18]

Medium effects to the N(1535) resonance and eta mesic nuclei

D. Jido
(
- Osaka U., Res. Ctr. Nucl. Phys.
)
,
H. Nagahiro
(
- Nara Women's U.
)
,
S. Hirenzaki
(
- Nara Women's U.
)

- Nucl.Phys.A 721 (2003) 665-668
•
e-Print:
- nucl-th/0211085
•
DOI:
- 10.1016/S0375-9474(03)01148-5

[19]

Eta nucleus interactions and in-medium properties of N*(1535) in chiral models

H. Nagahiro
(
- Nara Women's U.
)
,
D. Jido
(
- Osaka U., Res. Ctr. Nucl. Phys.
)
,
S. Hirenzaki
(
- Nara Women's U.
)

- Phys.Rev.C 68 (2003) 035205
•
e-Print:
- nucl-th/0304068
•
DOI:
- 10.1103/PhysRevC.68.035205

[20]

Photoproduction of eta mesic He-3

et al.

- Phys.Rev.Lett. 92 (2004) 252001
•
e-Print:
- nucl-ex/0312011
•
DOI:
- 10.1103/PhysRevLett.92.252001

[21]

Comment on `Photoproduction of eta-mesic He-3'

C. Hanhart
(
- Julich, Forschungszentrum
)

- Phys.Rev.Lett. 94 (2005) 049101
•
e-Print:
- hep-ph/0408204
•
DOI:
- 10.1103/PhysRevLett.94.049101

[22]

Formation of mesic nuclei by (gamma,p) reactions

H. Nagahiro
(
- Osaka U., Res. Ctr. Nucl. Phys.
)
,
D. Jido
(
- Munich, Tech. U.
)
,
S. Hirenzaki
(
- Nara Women's U.
)

- Nucl.Phys.A 761 (2005) 92-119
•
e-Print:
- nucl-th/0504081
•
DOI:
- 10.1016/j.nuclphysa.2005.07.001

[23]

Possible eta-mesic He-3 states within the finite rank approximation

N.G. Kelkar
(
- Andes U., Bogota
)
,
K.P. Khemchandani
(
- Valencia U. and
- Valencia U., IFIC and
- Mumbai U.
)
,
B.K. Jain
(
- Mumbai U.
)

- J.Phys.G 32 (2006) L19
•
e-Print:
- nucl-th/0601080
•
DOI:
- 10.1088/0954-3899/32/3/L01

[24]

Level crossing of particle-hole and mesonic modes in eta mesic nuclei

D. Jido
(
- Kyoto U., Yukawa Inst., Kyoto
)
,
E.E. Kolomeitsev
(
- Minnesota U. and
- Kyoto U., Yukawa Inst., Kyoto and
- Darmstadt, GSI
)
,
H. Nagahiro
(
- Osaka U., Res. Ctr. Nucl. Phys.
)
,
S. Hirenzaki
(
- Nara Women's U.
)

- Nucl.Phys.A 811 (2008) 158-178
•
e-Print:
- 0801.4834
•
DOI:
- 10.1016/j.nuclphysa.2008.07.012

[25]

eta-mesic nuclei in relativistic mean-field theory

C.Y. Song
(
- Nankai U.
)
,
X.H. Zhong
(
- Beijing, Inst. High Energy Phys.
)
,
L. Li
(
- Nankai U.
)
,
P.Z. Ning
(
- Nankai U.
)

- EPL 81 (2008) 4, 42002
•
e-Print:
- 0802.3738
•
DOI:
- 10.1209/0295-5075/81/42002

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η\etaη-nucleus interaction from the d+dd+dd+d reaction around the η\etaη production threshold

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$\eta$ -nucleus interaction from the $d+d$ reaction around the $\eta$ production threshold