The Cosmic Lithium Problems and Supersymmetric Dark Matter

Transcription

1 The Cosmic Lithium Problems and Supersymmetric Dark Matter Karsten JEDAMZIK LPTA, Montpellier Karsten Jedamzik, Chicago, a cold December day in 05 p.1/21

2 The Li Problem 7e-10 6e-10 "observed" "predicted" 5e-10 Li/H 4e-10 3e-10 2e-10 1e Ryan et al 00; Bonifacio & Molaro 97; Charbonnel & Primas 05; Boesgard et al 05, Melendez & Ramirez 04; Asplund et al 05; Bonifacio et al 03, Zhangf & Zhao 04 Burles et al 01; Cyburt et al 04; Coc et al 04; Cuoco et al 04 Karsten Jedamzik, Chicago, a cold December day in 05 p.2/21

3 Depletion of by factor in halo stars is not understood and may currently only be explained with fine-tuned stellar conditions Karsten Jedamzik, Chicago, a cold December day in 05 p.3/21

4 at low metallicity: A surprise Asplund, Lambert, Nissen, Primas, and Smith 05 (astro-ph/ ) Karsten Jedamzik, Chicago, a cold December day in 05 p.4/21

5 The energetics problem: need 100 ev/nucleon of cosmic ray energy to synthesize /H of at [Z] Karsten Jedamzik, Chicago, a cold December day in 05 p.5/21

6 The energetics problem: need 100 ev/nucleon of cosmic ray energy to synthesize /H of at [Z] standard cosmic rays fail to achieve this by a large factor Karsten Jedamzik, Chicago, a cold December day in 05 p.5/21

7 The energetics problem: need 100 ev/nucleon of cosmic ray energy to synthesize /H of at [Z] standard cosmic rays fail to achieve this by a large factor very non-standard cosmic rays? Rollinde et al 05, Prantzos 05, Reeves 05; Nath et al 05 Karsten Jedamzik, Chicago, a cold December day in 05 p.5/21

8 The energetics problem: need 100 ev/nucleon of cosmic ray energy to synthesize /H of at [Z] standard cosmic rays fail to achieve this by a large factor very non-standard cosmic rays? Rollinde et al 05, Prantzos 05, Reeves 05; Nath et al 05 However, factor depletion factor depletion - even non-standard cosmic rays should have problems Karsten Jedamzik, Chicago, a cold December day in 05 p.5/21

9 is easily produced during a slightly non-standard Big Bang nucleosynthesis Dimopoulos et al 88, K.J. 00,04ab, Kawaski et al 05 Karsten Jedamzik, Chicago, a cold December day in 05 p.6/21

10 due to dark matter annihilation during BBN <σv> (cm 3 /s) M x (GeV) K.J. Phys. Rev. D (2004) (astro-ph/ ) Karsten Jedamzik, Chicago, a cold December day in 05 p.7/21

11 Decaying particles/defects during BBN D/H 3e-05 7 Li/H 1e Li/ Li e τ (sec) K.J. Phys. Rev. D (2004); (astro-ph/ ) Karsten Jedamzik, Chicago, a cold December day in 05 p.8/21

12 The Cosmic Lithium Problems solved by Gravitino Warm DM msugra with gravitino LSP: K.J., Ki-Young Choi, L. Roszkowski, R. Ruiz de Austri 05 Karsten Jedamzik, Chicago, a cold December day in 05 p.9/21

13 The Cosmic Lithium Problems solved by Gravitino Warm DM msugra with gravitino LSP: K.J., Ki-Young Choi, L. Roszkowski, R. Ruiz de Austri 05 Karsten Jedamzik, Chicago, a cold December day in 05 p.10/21

14 The Cosmic Lithium Problems solved by Gravitino Warm DM Coincidentally right DM density! independent of reheat temperature Karsten Jedamzik, Chicago, a cold December day in 05 p.11/21

15 The Cosmic Lithium Problems solved by Gravitino Warm DM msugra with gravitino LSP: K.J., Ki-Young Choi, L. Roszkowski, R. Ruiz de Austri 05 Karsten Jedamzik, Chicago, a cold December day in 05 p.12/21

16 The Cosmic Lithium Problems solved by Gravitino Warm DM Prediction: Dark Matter is Warm Karsten Jedamzik, Chicago, a cold December day in 05 p.13/21

17 Conclusions standard BBN predicts factor more than observed at low [Z] Karsten Jedamzik, Chicago, a cold December day in 05 p.14/21

18 Conclusions standard BBN predicts factor more than observed at low [Z] stellar depletion of is possible, but factor is hard to achieve Karsten Jedamzik, Chicago, a cold December day in 05 p.14/21

19 Conclusions standard BBN predicts factor more than observed at low [Z] stellar depletion of is possible, but factor is hard to achieve It is difficult to explain the large particularly if problem abundance at low [Z], depletion has to be invoked to solve the Karsten Jedamzik, Chicago, a cold December day in 05 p.14/21

20 Conclusions is easily produced in the early Universe by the decay or annihilation of relic particles Karsten Jedamzik, Chicago, a cold December day in 05 p.15/21

21 Conclusions is easily produced in the early Universe by the decay or annihilation of relic particles is easily destroyed during BBN when a weak non-thermal hadronic source is present Karsten Jedamzik, Chicago, a cold December day in 05 p.15/21

22 Conclusions is easily produced in the early Universe by the decay or annihilation of relic particles is easily destroyed during BBN when a weak non-thermal hadronic source is present both problems may be solved simultaneously by the decay of a relic sec after the Big Bang Karsten Jedamzik, Chicago, a cold December day in 05 p.15/21

23 Conclusions is easily produced in the early Universe by the decay or annihilation of relic particles is easily destroyed during BBN when a weak non-thermal hadronic source is present both problems may be solved simultaneously by the decay of a relic sec after the Big Bang Do the anomalies in the lithium isotopes tell us about the nature of (some) the cosmic dark matter??? Karsten Jedamzik, Chicago, a cold December day in 05 p.15/21

24 Karsten Jedamzik, Chicago, a cold December day in 05 p.16/21

25 Karsten Jedamzik, Chicago, a cold December day in 05 p.17/21

26 at low metallicity with PMS stellar destruction Asplund, Lambert, Nissen, Primas, and Smith 05 (astro-ph/ ), Richard, Michaud, Richer 05 Karsten Jedamzik, Chicago, a cold December day in 05 p.18/21

27 Production of in cascade nucleosynthesis production of energetic 3-nuclei by,,... spallation Karsten Jedamzik, Chicago, a cold December day in 05 p.19/21

28 Production of in cascade nucleosynthesis production of energetic 3-nuclei by,,... non-thermal fusion of 3-nuclei on and spallation Karsten Jedamzik, Chicago, a cold December day in 05 p.19/21

29 in cascade nucleosynthesis spallation Karsten Jedamzik, Chicago, a cold December day in 05 p.19/21 Production of production of energetic 3-nuclei by,,... non-thermal fusion of 3-nuclei on and

30 in cascade nucleosynthesis spallation Karsten Jedamzik, Chicago, a cold December day in 05 p.19/21 Production of production of energetic 3-nuclei by,,... non-thermal fusion of 3-nuclei on and properties of relic

31 Production of in cascade nucleosynthesis production of energetic 3-nuclei by,,... non-thermal fusion of 3-nuclei on and spallation properties of relic hadronization Monte-Carlo - PYTHIA Karsten Jedamzik, Chicago, a cold December day in 05 p.19/21

32 Production of in cascade nucleosynthesis production of energetic 3-nuclei by,,... non-thermal fusion of 3-nuclei on and spallation properties of relic hadronization Monte-Carlo - PYTHIA thermalization of hadrons in plasma Karsten Jedamzik, Chicago, a cold December day in 05 p.19/21

33 Yield functions Y6 Li HD84937 uu dd ss bb tt ww zz M x (GeV) K.J. Phys.Rev. D (2004); (astro-ph/ ) Karsten Jedamzik, Chicago, a cold December day in 05 p.20/21

34 Decaying particles/defects during BBN Reno & Seckel 88, K.J. 04 Karsten Jedamzik, Chicago, a cold December day in 05 p.21/21

35 Decaying particles/defects during BBN Reno & Seckel 88, K.J. 04 destruction: at kev Karsten Jedamzik, Chicago, a cold December day in 05 p.21/21

36 Decaying particles/defects during BBN Reno & Seckel 88, K.J. 04 destruction: at kev production: n(,pn) at kev Karsten Jedamzik, Chicago, a cold December day in 05 p.21/21