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Study of D++ Resonance Abundance in 158 AGeV Pb + Pb Collisions at CERN-SPS
Study of D++ Resonance
Abundance in 158 AGeV Pb + Pb
Collisions at CERN-SPS
Susumu SATO
CERN-SPS-WA98
Susumu SATO
Study of D++ Resonance Abundance in 158 AGeV Pb + Pb Collisions at CERN-SPS
（１） 13頁の（重イオン衝突の特徴
の）
記述の修正
11頁
９~１１行目
Fig.4: mt -spectra
Among two distinctive features of mt spectrum
in relativistic heavy ion collisions,
only the former one is owing to the expansion of fireball.
CERN-SPS-WA98
Susumu SATO
Study of D++ Resonance Abundance in 158 AGeV Pb + Pb Collisions at CERN-SPS
（２）運動量分解能の運動量依存
の定性的記述の追加
45頁
6~9行目
For lower momentum, mainly because of multiple scattering,
for higher momentum, mainly due to position resolution.
CERN-SPS-WA98
Susumu SATO
Study of D++ Resonance Abundance in 158 AGeV Pb + Pb Collisions at CERN-SPS
（３） mt分布の誤差に関して
アクセプタンスのy, pt相関の影響の考察
77頁
14~17行目
While geometrical acceptance has y-pt (or mt) correlation,
the effect is smaller (~2.5%) in the pion mt-spectrum.
CERN-SPS-WA98
Susumu SATO
Study of D++ Resonance Abundance in 158 AGeV Pb + Pb Collisions at CERN-SPS
（４, ５）熱膨張模型における
single spectra 評価方法の記述、及び
陽子spectrumのfitの妥当性の検討(その１)
85頁
Expression 1
As a function of T, bt
Eur.Phys.J.
C2(1998)661
→陽子spectrum（WA98) について、fittingを行う
CERN-SPS-WA98
Susumu SATO
Study of D++ Resonance Abundance in 158 AGeV Pb + Pb Collisions at CERN-SPS
（４, ５）熱膨張模型における
single spectra 評価方法の記述、及び
陽子spectrumのfitの妥当性の検討(その2)
45頁、図43
76頁19~21行目
T=143±8MeV, bt =0.40c±0.05c→consistent with NA44 results
CERN-SPS-WA98
Susumu SATO
Study of D++ Resonance Abundance in 158 AGeV Pb + Pb Collisions at CERN-SPS
（６） Mixed Event 法の
正当性の記述の追加
55頁
6~12行目
Dominated by combinatorial background
● Effect of two-track separation are evaluated to be small
( Chamber resolution (~some mm)
< Nominal track distance (~few tens cm) )
●
CERN-SPS-WA98
Susumu SATO
Study of D++ Resonance Abundance in 158 AGeV Pb + Pb Collisions at CERN-SPS
（７）陽子、π中間子の
dN/dy の値を追加
70頁
2~18行目
dNp/dy＝25±6, dNp+/dy ＝138±16
CERN-SPS-WA98
（←consistent with other
experiment）
Susumu SATO
Study of D++ Resonance Abundance in 158 AGeV Pb + Pb Collisions at CERN-SPS
CERN-SPS-WA98
Susumu SATO
Study of D++ Resonance Abundance in 158 AGeV Pb + Pb Collisions at CERN-SPS
（４, ５）熱膨張模型における
single spectra 評価方法の記述、及び
陽子spectrumのfitの妥当性の検討(その１)
85頁
Expression 1
As a function of T, bt
Eur.Phys.J.
C2(1998)661
→陽子spectrum（WA98) について、fittingを行う
CERN-SPS-WA98
Susumu SATO

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