Simulating photonuclear interactions with mmc
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Simulating photonuclear interactions with MMC. Dmitry Chirkin UC Berkeley. The Models. photoproduction. DIS. Q 2. soft. hard. 1 GeV 2. Abramowicz Levin Levy Maor. Bezrukov-Bugaev. Butkevich-Mikheyev. BB 1981. 2002. 1991. 1997. ZEUS 94. Nuclear effects. BB + Hard 03

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Presentation Transcript

The models
The Models

photoproduction

DIS

Q2

soft

hard

1 GeV2

Abramowicz Levin Levy Maor

Bezrukov-Bugaev

Butkevich-Mikheyev

BB 1981

2002

1991

1997

ZEUS 94

Nuclear effects

BB + Hard 03

Bugaev Shlepin

Kokoulin 99

Dutta

Smirnov


All photonuclear cross sections
All photonuclear cross sections

  • As generated by MMC

Standard rock

Water


Sources
Sources

  • ALLM: Dutta, Seckel, et al. 2000

  • BB, ZEUS, BB+BS, ALLM: Sokalski et al. 2002

  • BM, BB: Butkevich, Mikheyev 2002

  • BB, BB+BS, ALLM for taus: Bugaev et al. 2003

  • BB, BB+BS for taus: Bugaev, Shlepin 2003


ALLM

from Dutta Seckel

  • Photon-nucleon cross section


ALLM

from Dutta Seckel

  • Muon photonuclear cross section from Dutta Seckel


Bezrukov bugaev
Bezrukov-Bugaev

from Sokalski

  • Comparison of BB1981 and ZEUS95 parameterizations


Bb bugaev shlepin
BB+Bugaev-Shlepin

from Bugaev Shlepin

Comparison with BB1981, ALLM, and Butkevich-Mikheyev

from Sokalski


Butkevich mikheyev
Butkevich-Mikheyev

from Butkevich Mikheyev

  • BM, BB

from Sokalski


Bb bugaev shlepin taus
BB+Bugaev-Shlepin (taus)

from Bugaev

  • BB+BS, ALLM: tau propagation

from Bugaev Shlepin


Conclusions
Conclusions

  • Plots of photonuclear cross section change from one publication to another, some of this can be explained by use of different shadowing functions.

  • ALLM 97 parameterization is currently used in AMANDA. Its results are very similar to Butkevich-Mikheyev parameterization.

  • Switching to the newer nuclear structure function as described in B-M will bring the ALLM 97 model closer to the new BB+BS parameterization.


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