Staging strategy of E15 - E15 staging strategy E151st ~ 30kW*week 2) DISTO DATA T. Yamazaki, M. Maggiora,

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Text of Staging strategy of E15 - E15 staging strategy E151st ~ 30kW*week 2) DISTO DATA T. Yamazaki, M....

  • M. Iwasaki RIKEN Nishina Center & TITech

    Staging strategy of E15

    for J-PARC E15 Collaboration

    2011年1月15日土曜日

  • K- 3He K-pp

    Λ

    neutron

    proton

    proton

    π−

    decay

    forma tion

    at 1 GeV/c by both missing & invariant mass

    K- 3He -> “ pp K- ” + n

    E15: KN interaction study by nuclear bound state-

    2011年1月15日土曜日

  • E15 staging strategy E151st ~ 30kW*week

    2011年1月15日土曜日

  • E15 staging strategy E151st ~ 30kW*week

    motivated by

    2011年1月15日土曜日

  • 1) Production cross section can be as large as

    few mb/sr in bound region!

    E15 staging strategy E151st ~ 30kW*week

    motivated by

    2011年1月15日土曜日

  • T. Koike, T. Harada, Phys. Rev. C80, 055208 (2009)

    1) Production cross section can be as large as

    few mb/sr in bound region!

    E15 staging strategy E151st ~ 30kW*week

    motivated by

    2011年1月15日土曜日

  • T. Koike, T. Harada, Phys. Rev. C80, 055208 (2009)

    1) Production cross section can be as large as

    few mb/sr in bound region!

    E15 staging strategy E151st ~ 30kW*week

    2) DISTO DATA

    motivated by

    2011年1月15日土曜日

  • T. Koike, T. Harada, Phys. Rev. C80, 055208 (2009)

    1) Production cross section can be as large as

    few mb/sr in bound region!

    E15 staging strategy E151st ~ 30kW*week

    2) DISTO DATA T. Yamazaki, M. Maggiora, P. Kienle, et al, PRL 104, 132502 (2010)

    motivated by

    2011年1月15日土曜日

  • T. Koike, T. Harada, Phys. Rev. C80, 055208 (2009)

    1) Production cross section can be as large as

    few mb/sr in bound region!

    E15 staging strategy E151st ~ 30kW*week

    2) DISTO DATA T. Yamazaki, M. Maggiora, P. Kienle, et al, PRL 104, 132502 (2010)

    3) Background Study

    motivated by

    2011年1月15日土曜日

  • Production cross section (KH) T. Koike, T. Harada, Phys. Rev. C80, 055208 (2009)

    K-pp N,,,,

    K-pp YN,,,,

    K-pp total,,,,

    V0 = -344 W0 = -203 MeV

    K-pp N,,,,

    (SGM)

    K-pp total,,,,

    B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    V0 = -404 W0 = -213 MeV

    -150 -100 -50 0 50 E ( MeV )

    K-pp N,,,,

    B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    -150 -100 -50 0 50 0

    20

    40

    60

    E ( MeV )

    d2 /d

    nd E n

    ( µ

    b/ (s

    r. M eV

    ) )

    (FINUDA)

    K-pp N,,,, K-pp N

    ,, ,, K-pp YN,,,,

    K-pp total,,,,

    V0 = -292 W0 = -107 MeV (YA)B( N) = 0.7

    B(YN) = 0.2

    1 B( N) = 0.11

    2

    K-pp N,,,,

    K-pp N,,,, K-pp YN,,,,

    K-pp total,,,,

    V0 = -237 W0 = -128 MeV B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    0

    20

    40

    60

    d2 /d

    nd E n

    ( µ

    b/ (s

    r. M eV

    ) )

    (DHW)

    DHW: A. Dote, T. Hyodo, and W. Weise, Nucl. Phys. A804, 197 (2008); Phys. Rev. C79, 014003 (2009).

    YA: T. Yamazaki and Y. Akaishi, Phys. Lett. B535, 70 (2002); Proc. Jpn. Academy, Series B 83, 144 (2007)

    SGM: N.V. Shevchenko, A. Gal, and J. Mares, Phys. Rev. Lett. 98, 082301 (2007); N.V. Shevchenko, A. Gal, J. Mares, and J. Revai, Phys. Rev. C76, 044004 (2007).

    ˘

    ˘

    FINUDA: M. Agnello et al., Phys. Rev. Lett. 94, 212303 (2005).

    3He (K-, n) X @ 1 GeV/c Excluding K- escape process

    2011年1月15日土曜日

  • Production cross section (KH) T. Koike, T. Harada, Phys. Rev. C80, 055208 (2009)

    K-pp N,,,,

    K-pp YN,,,,

    K-pp total,,,,

    V0 = -344 W0 = -203 MeV

    K-pp N,,,,

    (SGM)

    K-pp total,,,,

    B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    V0 = -404 W0 = -213 MeV

    -150 -100 -50 0 50 E ( MeV )

    K-pp N,,,,

    B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    -150 -100 -50 0 50 0

    20

    40

    60

    E ( MeV )

    d2 /d

    nd E n

    ( µ

    b/ (s

    r. M eV

    ) )

    (FINUDA)

    K-pp N,,,, K-pp N

    ,, ,, K-pp YN,,,,

    K-pp total,,,,

    V0 = -292 W0 = -107 MeV (YA)B( N) = 0.7

    B(YN) = 0.2

    1 B( N) = 0.11

    2

    K-pp N,,,,

    K-pp N,,,, K-pp YN,,,,

    K-pp total,,,,

    V0 = -237 W0 = -128 MeV B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    0

    20

    40

    60

    d2 /d

    nd E n

    ( µ

    b/ (s

    r. M eV

    ) )

    (DHW)

    DHW: A. Dote, T. Hyodo, and W. Weise, Nucl. Phys. A804, 197 (2008); Phys. Rev. C79, 014003 (2009).

    YA: T. Yamazaki and Y. Akaishi, Phys. Lett. B535, 70 (2002); Proc. Jpn. Academy, Series B 83, 144 (2007)

    SGM: N.V. Shevchenko, A. Gal, and J. Mares, Phys. Rev. Lett. 98, 082301 (2007); N.V. Shevchenko, A. Gal, J. Mares, and J. Revai, Phys. Rev. C76, 044004 (2007).

    ˘

    ˘

    FINUDA: M. Agnello et al., Phys. Rev. Lett. 94, 212303 (2005).

    3He (K-, n) X @ 1 GeV/c Excluding K- escape process

    few mb/sr in bound region! cf. 10 μb/sr assumed in prop.

    2011年1月15日土曜日

  • Production cross section (KH) T. Koike, T. Harada, Phys. Rev. C80, 055208 (2009)

    K-pp N,,,,

    K-pp YN,,,,

    K-pp total,,,,

    V0 = -344 W0 = -203 MeV

    K-pp N,,,,

    (SGM)

    K-pp total,,,,

    B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    V0 = -404 W0 = -213 MeV

    -150 -100 -50 0 50 E ( MeV )

    K-pp N,,,,

    B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    -150 -100 -50 0 50 0

    20

    40

    60

    E ( MeV )

    d2 /d

    nd E n

    ( µ

    b/ (s

    r. M eV

    ) )

    (FINUDA)

    K-pp N,,,, K-pp N

    ,, ,, K-pp YN,,,,

    K-pp total,,,,

    V0 = -292 W0 = -107 MeV (YA)B( N) = 0.7

    B(YN) = 0.2

    1 B( N) = 0.11

    2

    K-pp N,,,,

    K-pp N,,,, K-pp YN,,,,

    K-pp total,,,,

    V0 = -237 W0 = -128 MeV B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    0

    20

    40

    60

    d2 /d

    nd E n

    ( µ

    b/ (s

    r. M eV

    ) )

    (DHW)

    3He (K-, n) X @ 1 GeV/c Excluding K- escape process

    few mb/sr in bound region! cf. 10 μb/sr assumed in prop.

    2011年1月15日土曜日

  • Production cross section (KH) T. Koike, T. Harada, Phys. Rev. C80, 055208 (2009)

    K-pp N,,,,

    K-pp YN,,,,

    K-pp total,,,,

    V0 = -344 W0 = -203 MeV

    K-pp N,,,,

    (SGM)

    K-pp total,,,,

    B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    V0 = -404 W0 = -213 MeV

    -150 -100 -50 0 50 E ( MeV )

    K-pp N,,,,

    B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    -150 -100 -50 0 50 0

    20

    40

    60

    E ( MeV )

    d2 /d

    nd E n

    ( µ

    b/ (s

    r. M eV

    ) )

    (FINUDA)

    K-pp N,,,, K-pp N

    ,, ,, K-pp YN,,,,

    K-pp total,,,,

    V0 = -292 W0 = -107 MeV (YA)B( N) = 0.7

    B(YN) = 0.2

    1 B( N) = 0.11

    2

    K-pp N,,,,

    K-pp N,,,, K-pp YN,,,,

    K-pp total,,,,

    V0 = -237 W0 = -128 MeV B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    0

    20

    40

    60

    d2 /d

    nd E n

    ( µ

    b/ (s

    r. M eV

    ) )

    (DHW)

    3He (K-, n) X @ 1 GeV/c Excluding K- escape process

    few mb/sr in bound region! cf. 10 μb/sr assumed in prop.

    K-pp N,,,,

    K-pp YN,,,,

    K-pp total,,,,

    V0 = -344 W0 = -203 MeV

    K-pp N,,,,

    (SGM)

    K-pp total,,,,

    B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    V0 = -404 W0 = -213 MeV

    -150 -100 -50 0 50 E ( MeV )

    K-pp N,,,,

    B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    -150 -100 -50 0 50 0

    20

    40

    60

    E ( MeV )

    d2 /d

    nd E n

    ( µ

    b/ (s

    r. M eV

    ) )

    (FINUDA)

    K-pp N,,,, K-pp N

    ,, ,, K-pp YN,,,,

    K-pp total,,,,

    V0 = -292 W0 = -107 MeV (YA)B( N) = 0.7

    B(YN) = 0.2

    1 B( N) = 0.11

    2

    K-pp N,,,,

    K-pp N,,,, K-pp YN,,,,

    K-pp total,,,,

    V0 = -237 W0 = -128 MeV B( N) = 0.7 B(YN) = 0.2

    1 B( N) = 0.11

    2

    0

    20

    40

    60

    d2 /d

    nd E n

    ( µ

    b/ (s

    r. M eV

    ) )

    (DHW)

    limiting to nYN final states 1mb/sr!~>

    2011年1月15日土曜日

  • exclusive pp → K+Λp at Tp = 2.85 GeV

    BK~100MeV and ΓK~100MeV

    T. Yamazaki, M. Maggi